./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/easy2-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/easy2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 0ba0e3ec7d24c78a29a4980275f3f450c6adf9cab13a788bc587b5f2c8c6cbd4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-02 22:59:40,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-02 22:59:40,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-02 22:59:40,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-02 22:59:40,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-02 22:59:40,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-02 22:59:40,698 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-02 22:59:40,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-02 22:59:40,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-02 22:59:40,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-02 22:59:40,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-02 22:59:40,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-02 22:59:40,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-02 22:59:40,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-02 22:59:40,711 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-02 22:59:40,712 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-02 22:59:40,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-02 22:59:40,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-02 22:59:40,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-02 22:59:40,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-02 22:59:40,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-02 22:59:40,723 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-02 22:59:40,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-02 22:59:40,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-02 22:59:40,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-02 22:59:40,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-02 22:59:40,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-02 22:59:40,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-02 22:59:40,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-02 22:59:40,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-02 22:59:40,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-02 22:59:40,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-02 22:59:40,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-02 22:59:40,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-02 22:59:40,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-02 22:59:40,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-02 22:59:40,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-02 22:59:40,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-02 22:59:40,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-02 22:59:40,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-02 22:59:40,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-02 22:59:40,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-11-02 22:59:40,770 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-02 22:59:40,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-02 22:59:40,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-02 22:59:40,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-02 22:59:40,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-02 22:59:40,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-02 22:59:40,773 INFO L138 SettingsManager]: * Use SBE=true [2021-11-02 22:59:40,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-02 22:59:40,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-02 22:59:40,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-02 22:59:40,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-02 22:59:40,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-02 22:59:40,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-02 22:59:40,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-02 22:59:40,776 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-02 22:59:40,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-02 22:59:40,777 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-02 22:59:40,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-02 22:59:40,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-02 22:59:40,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-02 22:59:40,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-02 22:59:40,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:59:40,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-02 22:59:40,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-02 22:59:40,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-02 22:59:40,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-02 22:59:40,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-02 22:59:40,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-02 22:59:40,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-02 22:59:40,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ba0e3ec7d24c78a29a4980275f3f450c6adf9cab13a788bc587b5f2c8c6cbd4 [2021-11-02 22:59:41,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-02 22:59:41,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-02 22:59:41,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-02 22:59:41,120 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-02 22:59:41,123 INFO L275 PluginConnector]: CDTParser initialized [2021-11-02 22:59:41,125 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/../../sv-benchmarks/c/termination-crafted/easy2-2.c [2021-11-02 22:59:41,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/data/9e994d359/5cc010432fe745e495602e5b611382fc/FLAG6ef703096 [2021-11-02 22:59:41,638 INFO L306 CDTParser]: Found 1 translation units. [2021-11-02 22:59:41,639 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/sv-benchmarks/c/termination-crafted/easy2-2.c [2021-11-02 22:59:41,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/data/9e994d359/5cc010432fe745e495602e5b611382fc/FLAG6ef703096 [2021-11-02 22:59:42,035 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/data/9e994d359/5cc010432fe745e495602e5b611382fc [2021-11-02 22:59:42,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-02 22:59:42,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-02 22:59:42,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-02 22:59:42,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-02 22:59:42,062 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-02 22:59:42,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75e73d97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42, skipping insertion in model container [2021-11-02 22:59:42,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,075 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-02 22:59:42,089 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-02 22:59:42,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:59:42,317 INFO L203 MainTranslator]: Completed pre-run [2021-11-02 22:59:42,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-02 22:59:42,342 INFO L208 MainTranslator]: Completed translation [2021-11-02 22:59:42,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42 WrapperNode [2021-11-02 22:59:42,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-02 22:59:42,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-02 22:59:42,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-02 22:59:42,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-02 22:59:42,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,357 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-02 22:59:42,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-02 22:59:42,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-02 22:59:42,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-02 22:59:42,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,386 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,394 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,395 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-02 22:59:42,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-02 22:59:42,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-02 22:59:42,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-02 22:59:42,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (1/1) ... [2021-11-02 22:59:42,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-02 22:59:42,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:42,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-02 22:59:42,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-02 22:59:42,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-02 22:59:42,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-02 22:59:42,681 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-02 22:59:42,682 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-02 22:59:42,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:42 BoogieIcfgContainer [2021-11-02 22:59:42,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-02 22:59:42,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-02 22:59:42,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-02 22:59:42,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-02 22:59:42,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:59:42" (1/3) ... [2021-11-02 22:59:42,691 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180ddb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:59:42, skipping insertion in model container [2021-11-02 22:59:42,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:59:42" (2/3) ... [2021-11-02 22:59:42,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@180ddb83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:59:42, skipping insertion in model container [2021-11-02 22:59:42,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:59:42" (3/3) ... [2021-11-02 22:59:42,693 INFO L111 eAbstractionObserver]: Analyzing ICFG easy2-2.c [2021-11-02 22:59:42,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-02 22:59:42,699 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-02 22:59:42,751 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-02 22:59:42,760 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-02 22:59:42,761 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-02 22:59:42,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:42,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-02 22:59:42,781 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:42,781 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-02 22:59:42,782 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:42,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:42,789 INFO L85 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2021-11-02 22:59:42,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:42,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443976183] [2021-11-02 22:59:42,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:42,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:42,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:42,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:42,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443976183] [2021-11-02 22:59:42,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443976183] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:43,002 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:43,002 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-02 22:59:43,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347034167] [2021-11-02 22:59:43,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:43,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:43,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:43,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,038 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:43,118 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-11-02 22:59:43,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:43,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-02 22:59:43,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:43,128 INFO L225 Difference]: With dead ends: 30 [2021-11-02 22:59:43,143 INFO L226 Difference]: Without dead ends: 17 [2021-11-02 22:59:43,146 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-02 22:59:43,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-11-02 22:59:43,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.6) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-02 22:59:43,180 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2021-11-02 22:59:43,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:43,180 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-02 22:59:43,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,181 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-02 22:59:43,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-02 22:59:43,182 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:43,182 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-02 22:59:43,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-02 22:59:43,183 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:43,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:43,184 INFO L85 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2021-11-02 22:59:43,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:43,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516572098] [2021-11-02 22:59:43,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:43,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:43,207 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:43,207 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:43,208 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516572098] [2021-11-02 22:59:43,208 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516572098] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:43,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:43,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-02 22:59:43,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715576500] [2021-11-02 22:59:43,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:43,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:43,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:43,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,213 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:43,221 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-11-02 22:59:43,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:43,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-02 22:59:43,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:43,223 INFO L225 Difference]: With dead ends: 16 [2021-11-02 22:59:43,223 INFO L226 Difference]: Without dead ends: 15 [2021-11-02 22:59:43,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-02 22:59:43,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-02 22:59:43,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.5) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-02 22:59:43,228 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 4 [2021-11-02 22:59:43,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:43,229 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-02 22:59:43,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,229 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-02 22:59:43,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-02 22:59:43,230 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:43,230 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-02 22:59:43,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-02 22:59:43,231 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:43,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:43,232 INFO L85 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2021-11-02 22:59:43,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:43,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143884048] [2021-11-02 22:59:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:43,233 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:43,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:43,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143884048] [2021-11-02 22:59:43,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143884048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:43,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:43,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-02 22:59:43,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403670748] [2021-11-02 22:59:43,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:43,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:43,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:43,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,278 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:43,286 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-11-02 22:59:43,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:43,287 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-02 22:59:43,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:43,287 INFO L225 Difference]: With dead ends: 15 [2021-11-02 22:59:43,288 INFO L226 Difference]: Without dead ends: 14 [2021-11-02 22:59:43,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-02 22:59:43,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-02 22:59:43,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-11-02 22:59:43,307 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-11-02 22:59:43,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:43,307 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-11-02 22:59:43,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,308 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-11-02 22:59:43,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-02 22:59:43,309 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:43,309 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-02 22:59:43,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-02 22:59:43,310 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:43,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:43,311 INFO L85 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2021-11-02 22:59:43,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:43,311 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796248113] [2021-11-02 22:59:43,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:43,312 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:43,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:43,368 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:43,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796248113] [2021-11-02 22:59:43,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796248113] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:43,372 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:43,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-02 22:59:43,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165221182] [2021-11-02 22:59:43,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:43,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:43,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:43,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,381 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:43,408 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-11-02 22:59:43,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:43,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-02 22:59:43,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:43,412 INFO L225 Difference]: With dead ends: 18 [2021-11-02 22:59:43,414 INFO L226 Difference]: Without dead ends: 17 [2021-11-02 22:59:43,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-02 22:59:43,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-02 22:59:43,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-11-02 22:59:43,424 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 6 [2021-11-02 22:59:43,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:43,425 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-11-02 22:59:43,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,426 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-11-02 22:59:43,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-02 22:59:43,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:43,427 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:43,428 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-02 22:59:43,428 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:43,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:43,432 INFO L85 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2021-11-02 22:59:43,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:43,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440591971] [2021-11-02 22:59:43,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:43,433 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:43,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:43,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440591971] [2021-11-02 22:59:43,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440591971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:43,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:43,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-02 22:59:43,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391694326] [2021-11-02 22:59:43,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:43,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:43,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:43,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,495 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:43,519 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-11-02 22:59:43,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:43,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-02 22:59:43,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:43,523 INFO L225 Difference]: With dead ends: 17 [2021-11-02 22:59:43,523 INFO L226 Difference]: Without dead ends: 16 [2021-11-02 22:59:43,524 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-02 22:59:43,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-02 22:59:43,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-02 22:59:43,533 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-11-02 22:59:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:43,533 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-02 22:59:43,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,534 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-02 22:59:43,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-02 22:59:43,535 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:43,536 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:43,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-02 22:59:43,537 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:43,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:43,538 INFO L85 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2021-11-02 22:59:43,539 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:43,539 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940615490] [2021-11-02 22:59:43,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:43,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:43,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:43,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:43,586 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940615490] [2021-11-02 22:59:43,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940615490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-02 22:59:43,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-02 22:59:43,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-02 22:59:43,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362154961] [2021-11-02 22:59:43,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-02 22:59:43,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:43,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-02 22:59:43,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,589 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:43,597 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-11-02 22:59:43,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-02 22:59:43,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-02 22:59:43,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:43,599 INFO L225 Difference]: With dead ends: 16 [2021-11-02 22:59:43,599 INFO L226 Difference]: Without dead ends: 15 [2021-11-02 22:59:43,600 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-02 22:59:43,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-02 22:59:43,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-02 22:59:43,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-11-02 22:59:43,604 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2021-11-02 22:59:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:43,604 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-11-02 22:59:43,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-11-02 22:59:43,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-02 22:59:43,606 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:43,606 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-02 22:59:43,606 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-02 22:59:43,607 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:43,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:43,608 INFO L85 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2021-11-02 22:59:43,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:43,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153419943] [2021-11-02 22:59:43,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:43,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:43,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:43,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:43,643 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153419943] [2021-11-02 22:59:43,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153419943] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:43,644 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914945585] [2021-11-02 22:59:43,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:43,644 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:43,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:43,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:43,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-02 22:59:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:43,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 22:59:43,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:43,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:43,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914945585] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:43,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:43,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-11-02 22:59:43,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172781030] [2021-11-02 22:59:43,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:59:43,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:43,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:59:43,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:59:43,811 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:43,837 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-11-02 22:59:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:59:43,838 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-02 22:59:43,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:43,839 INFO L225 Difference]: With dead ends: 21 [2021-11-02 22:59:43,839 INFO L226 Difference]: Without dead ends: 20 [2021-11-02 22:59:43,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:59:43,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-02 22:59:43,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2021-11-02 22:59:43,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-11-02 22:59:43,847 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2021-11-02 22:59:43,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:43,848 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-11-02 22:59:43,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:43,848 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-11-02 22:59:43,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-02 22:59:43,850 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:43,850 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-11-02 22:59:43,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:44,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-02 22:59:44,075 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:44,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:44,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1313063709, now seen corresponding path program 1 times [2021-11-02 22:59:44,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:44,076 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085217706] [2021-11-02 22:59:44,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:44,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:44,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:44,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:44,113 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085217706] [2021-11-02 22:59:44,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085217706] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:44,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674679427] [2021-11-02 22:59:44,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:44,114 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:44,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:44,115 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:44,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-02 22:59:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:44,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-02 22:59:44,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:44,229 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:44,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674679427] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:44,230 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:44,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2021-11-02 22:59:44,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595400888] [2021-11-02 22:59:44,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-02 22:59:44,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:44,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-02 22:59:44,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:59:44,232 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:44,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:44,257 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-11-02 22:59:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-02 22:59:44,258 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-02 22:59:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:44,259 INFO L225 Difference]: With dead ends: 23 [2021-11-02 22:59:44,260 INFO L226 Difference]: Without dead ends: 22 [2021-11-02 22:59:44,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-02 22:59:44,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-02 22:59:44,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-11-02 22:59:44,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 20 states have (on average 1.1) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:44,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-11-02 22:59:44,267 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 13 [2021-11-02 22:59:44,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:44,268 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-11-02 22:59:44,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:44,268 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-11-02 22:59:44,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-02 22:59:44,269 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:44,270 INFO L513 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1] [2021-11-02 22:59:44,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:44,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:44,492 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:44,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:44,493 INFO L85 PathProgramCache]: Analyzing trace with hash 844787553, now seen corresponding path program 2 times [2021-11-02 22:59:44,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:44,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011322100] [2021-11-02 22:59:44,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:44,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:44,564 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:44,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:44,564 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011322100] [2021-11-02 22:59:44,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011322100] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:44,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147210515] [2021-11-02 22:59:44,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:59:44,565 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:44,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:44,573 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:44,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-02 22:59:44,635 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:59:44,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:44,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:59:44,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:44,709 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:44,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147210515] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:44,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:44,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-11-02 22:59:44,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156665770] [2021-11-02 22:59:44,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:59:44,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:44,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:59:44,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:59:44,712 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:44,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:44,728 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-11-02 22:59:44,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:59:44,729 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-02 22:59:44,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:44,730 INFO L225 Difference]: With dead ends: 28 [2021-11-02 22:59:44,730 INFO L226 Difference]: Without dead ends: 27 [2021-11-02 22:59:44,730 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:59:44,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-11-02 22:59:44,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-11-02 22:59:44,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 24 states have (on average 1.0833333333333333) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:44,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-11-02 22:59:44,735 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 17 [2021-11-02 22:59:44,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:44,735 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-11-02 22:59:44,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:44,736 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-11-02 22:59:44,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-02 22:59:44,736 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:44,737 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1] [2021-11-02 22:59:44,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:44,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:44,964 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:44,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:44,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1442319379, now seen corresponding path program 2 times [2021-11-02 22:59:44,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:44,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137889729] [2021-11-02 22:59:44,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:44,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:44,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:45,024 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:45,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:45,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137889729] [2021-11-02 22:59:45,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137889729] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:45,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185950801] [2021-11-02 22:59:45,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:59:45,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:45,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:45,040 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:45,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-02 22:59:45,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:59:45,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:45,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-02 22:59:45,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:45,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185950801] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:45,198 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:45,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-11-02 22:59:45,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830691225] [2021-11-02 22:59:45,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-02 22:59:45,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:45,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-02 22:59:45,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:59:45,200 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:45,230 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2021-11-02 22:59:45,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-02 22:59:45,231 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-02 22:59:45,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:45,233 INFO L225 Difference]: With dead ends: 30 [2021-11-02 22:59:45,233 INFO L226 Difference]: Without dead ends: 29 [2021-11-02 22:59:45,235 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-11-02 22:59:45,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-11-02 22:59:45,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-11-02 22:59:45,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 29 transitions. [2021-11-02 22:59:45,245 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 29 transitions. Word has length 20 [2021-11-02 22:59:45,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:45,245 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 29 transitions. [2021-11-02 22:59:45,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 29 transitions. [2021-11-02 22:59:45,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-02 22:59:45,247 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:45,247 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 1, 1] [2021-11-02 22:59:45,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:45,452 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-02 22:59:45,452 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:45,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1141262287, now seen corresponding path program 3 times [2021-11-02 22:59:45,453 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:45,453 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731183235] [2021-11-02 22:59:45,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:45,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:45,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:45,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731183235] [2021-11-02 22:59:45,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731183235] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:45,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578875547] [2021-11-02 22:59:45,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 22:59:45,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:45,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:45,511 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:45,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-02 22:59:45,575 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-02 22:59:45,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:45,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 22:59:45,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:45,671 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:45,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578875547] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:45,678 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:45,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-02 22:59:45,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401429810] [2021-11-02 22:59:45,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:59:45,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:45,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:59:45,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:59:45,685 INFO L87 Difference]: Start difference. First operand 29 states and 29 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:45,721 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2021-11-02 22:59:45,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:59:45,722 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-02 22:59:45,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:45,723 INFO L225 Difference]: With dead ends: 35 [2021-11-02 22:59:45,723 INFO L226 Difference]: Without dead ends: 34 [2021-11-02 22:59:45,723 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:59:45,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-02 22:59:45,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-11-02 22:59:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.064516129032258) internal successors, (33), 32 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-11-02 22:59:45,730 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 33 transitions. Word has length 24 [2021-11-02 22:59:45,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:45,731 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 33 transitions. [2021-11-02 22:59:45,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:45,731 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-11-02 22:59:45,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-02 22:59:45,732 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:45,732 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1] [2021-11-02 22:59:45,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:45,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:45,956 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:45,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:45,956 INFO L85 PathProgramCache]: Analyzing trace with hash -383633123, now seen corresponding path program 3 times [2021-11-02 22:59:45,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:45,957 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624641607] [2021-11-02 22:59:45,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:45,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:45,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:46,002 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:46,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:46,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624641607] [2021-11-02 22:59:46,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624641607] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:46,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706011154] [2021-11-02 22:59:46,003 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 22:59:46,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:46,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:46,004 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:46,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-02 22:59:46,094 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-02 22:59:46,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:46,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-02 22:59:46,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:46,219 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706011154] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:46,219 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:46,219 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-11-02 22:59:46,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486728671] [2021-11-02 22:59:46,220 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-02 22:59:46,220 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:46,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-02 22:59:46,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:59:46,221 INFO L87 Difference]: Start difference. First operand 33 states and 33 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:46,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:46,239 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2021-11-02 22:59:46,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-02 22:59:46,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2021-11-02 22:59:46,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:46,241 INFO L225 Difference]: With dead ends: 37 [2021-11-02 22:59:46,241 INFO L226 Difference]: Without dead ends: 36 [2021-11-02 22:59:46,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-02 22:59:46,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-02 22:59:46,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-11-02 22:59:46,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 35 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:46,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-11-02 22:59:46,246 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 27 [2021-11-02 22:59:46,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:46,247 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-11-02 22:59:46,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:46,247 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-11-02 22:59:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-02 22:59:46,248 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:46,249 INFO L513 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 1, 1] [2021-11-02 22:59:46,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:46,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-02 22:59:46,476 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:46,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:46,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1391598239, now seen corresponding path program 4 times [2021-11-02 22:59:46,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:46,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741548865] [2021-11-02 22:59:46,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:46,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:46,538 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:46,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:46,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741548865] [2021-11-02 22:59:46,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741548865] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:46,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114917629] [2021-11-02 22:59:46,539 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 22:59:46,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:46,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:46,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:46,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-02 22:59:46,628 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 22:59:46,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:46,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 22:59:46,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:46,723 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:46,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114917629] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:46,724 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:46,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-11-02 22:59:46,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564284279] [2021-11-02 22:59:46,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 22:59:46,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:46,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 22:59:46,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:59:46,731 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:46,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:46,756 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2021-11-02 22:59:46,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:59:46,756 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-02 22:59:46,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:46,757 INFO L225 Difference]: With dead ends: 42 [2021-11-02 22:59:46,757 INFO L226 Difference]: Without dead ends: 41 [2021-11-02 22:59:46,758 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:59:46,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-02 22:59:46,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 40. [2021-11-02 22:59:46,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.0526315789473684) internal successors, (40), 39 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:46,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2021-11-02 22:59:46,762 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 40 transitions. Word has length 31 [2021-11-02 22:59:46,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:46,762 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 40 transitions. [2021-11-02 22:59:46,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.166666666666667) internal successors, (31), 6 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:46,763 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2021-11-02 22:59:46,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-02 22:59:46,764 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:46,764 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1] [2021-11-02 22:59:46,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:46,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-02 22:59:46,984 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:46,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:46,984 INFO L85 PathProgramCache]: Analyzing trace with hash -2078753299, now seen corresponding path program 4 times [2021-11-02 22:59:46,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:46,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28268196] [2021-11-02 22:59:46,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:46,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:47,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:47,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28268196] [2021-11-02 22:59:47,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28268196] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:47,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115127744] [2021-11-02 22:59:47,048 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 22:59:47,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:47,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:47,050 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:47,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-02 22:59:47,148 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 22:59:47,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:47,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-02 22:59:47,150 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:47,254 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:47,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115127744] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:47,255 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:47,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-11-02 22:59:47,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677528404] [2021-11-02 22:59:47,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-02 22:59:47,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:47,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-02 22:59:47,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:59:47,262 INFO L87 Difference]: Start difference. First operand 40 states and 40 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:47,286 INFO L93 Difference]: Finished difference Result 44 states and 44 transitions. [2021-11-02 22:59:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-02 22:59:47,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-02 22:59:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:47,288 INFO L225 Difference]: With dead ends: 44 [2021-11-02 22:59:47,288 INFO L226 Difference]: Without dead ends: 43 [2021-11-02 22:59:47,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-11-02 22:59:47,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-11-02 22:59:47,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-11-02 22:59:47,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.048780487804878) internal successors, (43), 42 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:47,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2021-11-02 22:59:47,295 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 43 transitions. Word has length 34 [2021-11-02 22:59:47,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:47,297 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 43 transitions. [2021-11-02 22:59:47,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:47,298 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2021-11-02 22:59:47,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-02 22:59:47,302 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:47,302 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1] [2021-11-02 22:59:47,341 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:47,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:47,519 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:47,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:47,520 INFO L85 PathProgramCache]: Analyzing trace with hash 747995697, now seen corresponding path program 5 times [2021-11-02 22:59:47,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:47,520 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137320227] [2021-11-02 22:59:47,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:47,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:47,576 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:47,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:47,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137320227] [2021-11-02 22:59:47,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137320227] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:47,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936594176] [2021-11-02 22:59:47,577 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 22:59:47,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:47,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:47,578 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:47,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-02 22:59:47,700 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-02 22:59:47,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:47,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 22:59:47,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:47,823 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:47,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936594176] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:47,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:47,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-02 22:59:47,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681314555] [2021-11-02 22:59:47,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 22:59:47,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:47,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 22:59:47,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:59:47,824 INFO L87 Difference]: Start difference. First operand 43 states and 43 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:47,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:47,856 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2021-11-02 22:59:47,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 22:59:47,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2021-11-02 22:59:47,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:47,857 INFO L225 Difference]: With dead ends: 49 [2021-11-02 22:59:47,858 INFO L226 Difference]: Without dead ends: 48 [2021-11-02 22:59:47,858 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:59:47,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2021-11-02 22:59:47,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2021-11-02 22:59:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 45 states have (on average 1.0444444444444445) internal successors, (47), 46 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2021-11-02 22:59:47,863 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 38 [2021-11-02 22:59:47,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:47,863 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2021-11-02 22:59:47,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:47,864 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2021-11-02 22:59:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-02 22:59:47,865 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:47,865 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 1, 1] [2021-11-02 22:59:47,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:48,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-02 22:59:48,089 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:48,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:48,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1249521437, now seen corresponding path program 5 times [2021-11-02 22:59:48,090 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:48,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943152863] [2021-11-02 22:59:48,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:48,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:48,162 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:48,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:48,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943152863] [2021-11-02 22:59:48,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943152863] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:48,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1352606900] [2021-11-02 22:59:48,163 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 22:59:48,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:48,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:48,164 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:48,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-02 22:59:48,294 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-02 22:59:48,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:48,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-02 22:59:48,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:48,434 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 95 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:48,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1352606900] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:48,435 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:48,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-02 22:59:48,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19325816] [2021-11-02 22:59:48,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-02 22:59:48,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:48,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-02 22:59:48,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:59:48,437 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:48,465 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2021-11-02 22:59:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-02 22:59:48,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-02 22:59:48,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:48,466 INFO L225 Difference]: With dead ends: 51 [2021-11-02 22:59:48,466 INFO L226 Difference]: Without dead ends: 50 [2021-11-02 22:59:48,467 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-11-02 22:59:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2021-11-02 22:59:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2021-11-02 22:59:48,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 48 states have (on average 1.0416666666666667) internal successors, (50), 49 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:48,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-11-02 22:59:48,471 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 41 [2021-11-02 22:59:48,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:48,472 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-11-02 22:59:48,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:48,472 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-11-02 22:59:48,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-02 22:59:48,473 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:48,473 INFO L513 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 6, 6, 1, 1] [2021-11-02 22:59:48,510 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:48,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:48,673 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:48,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:48,674 INFO L85 PathProgramCache]: Analyzing trace with hash 360373089, now seen corresponding path program 6 times [2021-11-02 22:59:48,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:48,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839516694] [2021-11-02 22:59:48,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:48,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:48,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:48,746 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:48,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:48,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839516694] [2021-11-02 22:59:48,747 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839516694] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:48,747 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870563850] [2021-11-02 22:59:48,747 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 22:59:48,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:48,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:48,749 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:48,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-02 22:59:48,873 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-02 22:59:48,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:48,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:59:48,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:49,015 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:49,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870563850] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:49,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:49,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-11-02 22:59:49,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297405798] [2021-11-02 22:59:49,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:49,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:49,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:49,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:49,018 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:49,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:49,051 INFO L93 Difference]: Finished difference Result 56 states and 56 transitions. [2021-11-02 22:59:49,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:59:49,051 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-02 22:59:49,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:49,054 INFO L225 Difference]: With dead ends: 56 [2021-11-02 22:59:49,054 INFO L226 Difference]: Without dead ends: 55 [2021-11-02 22:59:49,055 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:49,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-11-02 22:59:49,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2021-11-02 22:59:49,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 52 states have (on average 1.0384615384615385) internal successors, (54), 53 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:49,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2021-11-02 22:59:49,066 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 45 [2021-11-02 22:59:49,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:49,067 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2021-11-02 22:59:49,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:49,067 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2021-11-02 22:59:49,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-02 22:59:49,074 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:49,074 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 1, 1] [2021-11-02 22:59:49,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:49,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-02 22:59:49,288 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:49,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:49,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1543501843, now seen corresponding path program 6 times [2021-11-02 22:59:49,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:49,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229497274] [2021-11-02 22:59:49,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:49,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:49,383 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:49,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:49,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229497274] [2021-11-02 22:59:49,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229497274] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:49,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398559896] [2021-11-02 22:59:49,384 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 22:59:49,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:49,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:49,386 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:49,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-02 22:59:49,537 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-02 22:59:49,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:49,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-02 22:59:49,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:49,708 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 0 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:49,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398559896] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:49,708 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:49,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-11-02 22:59:49,709 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838569189] [2021-11-02 22:59:49,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-02 22:59:49,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:49,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-02 22:59:49,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:49,710 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:49,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:49,733 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-11-02 22:59:49,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-02 22:59:49,734 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-11-02 22:59:49,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:49,735 INFO L225 Difference]: With dead ends: 58 [2021-11-02 22:59:49,735 INFO L226 Difference]: Without dead ends: 57 [2021-11-02 22:59:49,735 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-11-02 22:59:49,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-11-02 22:59:49,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-11-02 22:59:49,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 55 states have (on average 1.0363636363636364) internal successors, (57), 56 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 57 transitions. [2021-11-02 22:59:49,740 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 57 transitions. Word has length 48 [2021-11-02 22:59:49,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:49,741 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 57 transitions. [2021-11-02 22:59:49,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 8 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:49,741 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 57 transitions. [2021-11-02 22:59:49,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-02 22:59:49,741 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:49,742 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 7, 1, 1] [2021-11-02 22:59:49,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:49,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-02 22:59:49,963 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:49,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:49,964 INFO L85 PathProgramCache]: Analyzing trace with hash 331861041, now seen corresponding path program 7 times [2021-11-02 22:59:49,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:49,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343642168] [2021-11-02 22:59:49,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:49,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:49,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:50,067 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:50,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:50,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343642168] [2021-11-02 22:59:50,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343642168] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:50,068 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2004954168] [2021-11-02 22:59:50,068 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 22:59:50,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:50,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:50,069 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:50,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-02 22:59:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:50,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 22:59:50,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:50,369 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:50,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2004954168] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:50,370 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:50,370 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-02 22:59:50,370 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555135099] [2021-11-02 22:59:50,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 22:59:50,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:50,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 22:59:50,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:59:50,373 INFO L87 Difference]: Start difference. First operand 57 states and 57 transitions. Second operand has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:50,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:50,402 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-11-02 22:59:50,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-02 22:59:50,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-02 22:59:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:50,403 INFO L225 Difference]: With dead ends: 63 [2021-11-02 22:59:50,403 INFO L226 Difference]: Without dead ends: 62 [2021-11-02 22:59:50,403 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:59:50,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-02 22:59:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-11-02 22:59:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 59 states have (on average 1.0338983050847457) internal successors, (61), 60 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:50,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2021-11-02 22:59:50,414 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 52 [2021-11-02 22:59:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:50,416 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2021-11-02 22:59:50,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2021-11-02 22:59:50,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-02 22:59:50,417 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:50,417 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 7, 7, 7, 1, 1] [2021-11-02 22:59:50,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:50,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:50,632 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:50,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:50,632 INFO L85 PathProgramCache]: Analyzing trace with hash -542399203, now seen corresponding path program 7 times [2021-11-02 22:59:50,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:50,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115825299] [2021-11-02 22:59:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:50,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:50,744 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:50,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:50,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115825299] [2021-11-02 22:59:50,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115825299] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:50,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489731787] [2021-11-02 22:59:50,745 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 22:59:50,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:50,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:50,747 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:50,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-02 22:59:50,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:50,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-02 22:59:50,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:51,105 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:51,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489731787] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:51,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:51,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-02 22:59:51,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960684256] [2021-11-02 22:59:51,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-02 22:59:51,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:51,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-02 22:59:51,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:59:51,108 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:51,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:51,134 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2021-11-02 22:59:51,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-02 22:59:51,135 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-11-02 22:59:51,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:51,136 INFO L225 Difference]: With dead ends: 65 [2021-11-02 22:59:51,136 INFO L226 Difference]: Without dead ends: 64 [2021-11-02 22:59:51,137 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-11-02 22:59:51,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-11-02 22:59:51,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2021-11-02 22:59:51,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 62 states have (on average 1.032258064516129) internal successors, (64), 63 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:51,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2021-11-02 22:59:51,157 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 55 [2021-11-02 22:59:51,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:51,158 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2021-11-02 22:59:51,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:51,158 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2021-11-02 22:59:51,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-02 22:59:51,160 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:51,160 INFO L513 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1] [2021-11-02 22:59:51,198 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:51,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:51,376 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:51,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:51,376 INFO L85 PathProgramCache]: Analyzing trace with hash 687952225, now seen corresponding path program 8 times [2021-11-02 22:59:51,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:51,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197542227] [2021-11-02 22:59:51,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:51,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:51,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:51,464 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:51,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:51,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197542227] [2021-11-02 22:59:51,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197542227] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:51,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637122351] [2021-11-02 22:59:51,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:59:51,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:51,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:51,467 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:51,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-02 22:59:51,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:59:51,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:51,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-02 22:59:51,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:51,845 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 0 proven. 212 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:51,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637122351] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:51,846 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:51,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-11-02 22:59:51,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078637206] [2021-11-02 22:59:51,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 22:59:51,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:51,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 22:59:51,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:59:51,847 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:51,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:51,885 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2021-11-02 22:59:51,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-02 22:59:51,886 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-11-02 22:59:51,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:51,886 INFO L225 Difference]: With dead ends: 70 [2021-11-02 22:59:51,886 INFO L226 Difference]: Without dead ends: 69 [2021-11-02 22:59:51,887 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:59:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2021-11-02 22:59:51,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 68. [2021-11-02 22:59:51,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 66 states have (on average 1.0303030303030303) internal successors, (68), 67 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:51,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 68 transitions. [2021-11-02 22:59:51,891 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 68 transitions. Word has length 59 [2021-11-02 22:59:51,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:51,891 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 68 transitions. [2021-11-02 22:59:51,892 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:51,892 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 68 transitions. [2021-11-02 22:59:51,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-02 22:59:51,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:51,893 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 1, 1] [2021-11-02 22:59:51,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:52,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:52,105 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:52,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:52,105 INFO L85 PathProgramCache]: Analyzing trace with hash -799157779, now seen corresponding path program 8 times [2021-11-02 22:59:52,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:52,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100866965] [2021-11-02 22:59:52,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:52,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:52,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:52,197 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:52,198 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:52,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100866965] [2021-11-02 22:59:52,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100866965] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:52,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916129392] [2021-11-02 22:59:52,198 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 22:59:52,199 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:52,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:52,204 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:52,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-02 22:59:52,410 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 22:59:52,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:52,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-02 22:59:52,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:52,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [916129392] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:52,588 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:52,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-11-02 22:59:52,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122444342] [2021-11-02 22:59:52,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-02 22:59:52,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:52,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-02 22:59:52,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:59:52,591 INFO L87 Difference]: Start difference. First operand 68 states and 68 transitions. Second operand has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:52,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:52,621 INFO L93 Difference]: Finished difference Result 72 states and 72 transitions. [2021-11-02 22:59:52,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-02 22:59:52,622 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-11-02 22:59:52,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:52,623 INFO L225 Difference]: With dead ends: 72 [2021-11-02 22:59:52,623 INFO L226 Difference]: Without dead ends: 71 [2021-11-02 22:59:52,624 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-11-02 22:59:52,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-11-02 22:59:52,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-11-02 22:59:52,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 69 states have (on average 1.0289855072463767) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:52,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-11-02 22:59:52,629 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 62 [2021-11-02 22:59:52,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:52,629 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-11-02 22:59:52,630 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 6.2) internal successors, (62), 10 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:52,630 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-11-02 22:59:52,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-02 22:59:52,631 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:52,631 INFO L513 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 9, 9, 1, 1] [2021-11-02 22:59:52,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:52,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-02 22:59:52,848 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:52,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:52,849 INFO L85 PathProgramCache]: Analyzing trace with hash -399469007, now seen corresponding path program 9 times [2021-11-02 22:59:52,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:52,849 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777200116] [2021-11-02 22:59:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:52,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:52,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:52,959 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777200116] [2021-11-02 22:59:52,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777200116] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:52,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1696157863] [2021-11-02 22:59:52,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 22:59:52,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:52,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:52,961 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:52,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-02 22:59:53,184 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-02 22:59:53,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:53,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 22:59:53,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:53,374 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 270 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:53,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1696157863] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:53,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:53,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-11-02 22:59:53,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10462309] [2021-11-02 22:59:53,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 22:59:53,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:53,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 22:59:53,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-02 22:59:53,377 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:53,415 INFO L93 Difference]: Finished difference Result 77 states and 77 transitions. [2021-11-02 22:59:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-02 22:59:53,416 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-02 22:59:53,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:53,417 INFO L225 Difference]: With dead ends: 77 [2021-11-02 22:59:53,417 INFO L226 Difference]: Without dead ends: 76 [2021-11-02 22:59:53,418 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-02 22:59:53,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-11-02 22:59:53,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2021-11-02 22:59:53,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 73 states have (on average 1.0273972602739727) internal successors, (75), 74 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:53,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 75 transitions. [2021-11-02 22:59:53,422 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 75 transitions. Word has length 66 [2021-11-02 22:59:53,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:53,422 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 75 transitions. [2021-11-02 22:59:53,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.0) internal successors, (66), 11 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:53,423 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 75 transitions. [2021-11-02 22:59:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-02 22:59:53,424 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:53,424 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 9, 9, 9, 1, 1] [2021-11-02 22:59:53,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:53,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:53,639 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:53,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:53,639 INFO L85 PathProgramCache]: Analyzing trace with hash 773233437, now seen corresponding path program 9 times [2021-11-02 22:59:53,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:53,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546429141] [2021-11-02 22:59:53,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:53,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:53,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:53,769 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:53,769 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546429141] [2021-11-02 22:59:53,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546429141] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:53,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126276795] [2021-11-02 22:59:53,770 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 22:59:53,770 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:53,770 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:53,771 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:53,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-02 22:59:54,076 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-02 22:59:54,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:54,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-02 22:59:54,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:54,292 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:54,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126276795] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:54,293 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:54,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-11-02 22:59:54,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255590161] [2021-11-02 22:59:54,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-02 22:59:54,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:54,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-02 22:59:54,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-02 22:59:54,295 INFO L87 Difference]: Start difference. First operand 75 states and 75 transitions. Second operand has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:54,334 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2021-11-02 22:59:54,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-02 22:59:54,334 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-11-02 22:59:54,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:54,335 INFO L225 Difference]: With dead ends: 79 [2021-11-02 22:59:54,336 INFO L226 Difference]: Without dead ends: 78 [2021-11-02 22:59:54,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-02 22:59:54,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-02 22:59:54,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-02 22:59:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 76 states have (on average 1.0263157894736843) internal successors, (78), 77 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 78 transitions. [2021-11-02 22:59:54,344 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 78 transitions. Word has length 69 [2021-11-02 22:59:54,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:54,345 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 78 transitions. [2021-11-02 22:59:54,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 6.2727272727272725) internal successors, (69), 11 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 78 transitions. [2021-11-02 22:59:54,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-02 22:59:54,346 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:54,347 INFO L513 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 10, 10, 1, 1] [2021-11-02 22:59:54,385 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:54,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:54,572 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:54,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:54,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1123989663, now seen corresponding path program 10 times [2021-11-02 22:59:54,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:54,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48909383] [2021-11-02 22:59:54,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:54,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:54,673 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:54,674 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:54,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48909383] [2021-11-02 22:59:54,674 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48909383] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:54,674 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648563954] [2021-11-02 22:59:54,674 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 22:59:54,675 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:54,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:54,676 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:54,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-02 22:59:54,951 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 22:59:54,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:54,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-02 22:59:54,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:55,161 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 335 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:55,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648563954] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:55,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:55,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-11-02 22:59:55,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626732912] [2021-11-02 22:59:55,162 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-02 22:59:55,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:55,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-02 22:59:55,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-02 22:59:55,164 INFO L87 Difference]: Start difference. First operand 78 states and 78 transitions. Second operand has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:55,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:55,199 INFO L93 Difference]: Finished difference Result 84 states and 84 transitions. [2021-11-02 22:59:55,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-02 22:59:55,200 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-02 22:59:55,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:55,201 INFO L225 Difference]: With dead ends: 84 [2021-11-02 22:59:55,201 INFO L226 Difference]: Without dead ends: 83 [2021-11-02 22:59:55,202 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-02 22:59:55,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2021-11-02 22:59:55,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 82. [2021-11-02 22:59:55,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 80 states have (on average 1.025) internal successors, (82), 81 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:55,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2021-11-02 22:59:55,206 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 73 [2021-11-02 22:59:55,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:55,206 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2021-11-02 22:59:55,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.083333333333333) internal successors, (73), 12 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:55,207 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2021-11-02 22:59:55,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-02 22:59:55,207 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:55,208 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 1, 1] [2021-11-02 22:59:55,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:55,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:55,424 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:55,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:55,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1210967059, now seen corresponding path program 10 times [2021-11-02 22:59:55,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:55,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083461988] [2021-11-02 22:59:55,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:55,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:55,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:55,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:55,567 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083461988] [2021-11-02 22:59:55,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083461988] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:55,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243802238] [2021-11-02 22:59:55,568 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 22:59:55,568 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:55,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:55,569 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:55,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-02 22:59:55,866 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 22:59:55,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:55,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-02 22:59:55,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:56,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243802238] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:56,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:56,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-11-02 22:59:56,093 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352176862] [2021-11-02 22:59:56,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-02 22:59:56,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:56,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-02 22:59:56,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-02 22:59:56,094 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:56,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:56,128 INFO L93 Difference]: Finished difference Result 86 states and 86 transitions. [2021-11-02 22:59:56,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-02 22:59:56,128 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-02 22:59:56,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:56,129 INFO L225 Difference]: With dead ends: 86 [2021-11-02 22:59:56,130 INFO L226 Difference]: Without dead ends: 85 [2021-11-02 22:59:56,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-11-02 22:59:56,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2021-11-02 22:59:56,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2021-11-02 22:59:56,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 83 states have (on average 1.0240963855421688) internal successors, (85), 84 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:56,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 85 transitions. [2021-11-02 22:59:56,134 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 85 transitions. Word has length 76 [2021-11-02 22:59:56,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:56,135 INFO L470 AbstractCegarLoop]: Abstraction has 85 states and 85 transitions. [2021-11-02 22:59:56,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:56,135 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 85 transitions. [2021-11-02 22:59:56,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-02 22:59:56,136 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:56,136 INFO L513 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 1, 1] [2021-11-02 22:59:56,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:56,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-02 22:59:56,354 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:56,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:56,355 INFO L85 PathProgramCache]: Analyzing trace with hash 141549617, now seen corresponding path program 11 times [2021-11-02 22:59:56,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:56,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647763661] [2021-11-02 22:59:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:56,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:56,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:56,497 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:56,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:56,497 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647763661] [2021-11-02 22:59:56,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647763661] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:56,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046735526] [2021-11-02 22:59:56,498 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 22:59:56,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:56,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:56,499 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:56,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-02 22:59:56,843 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-02 22:59:56,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:56,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-02 22:59:56,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:57,081 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 0 proven. 407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:57,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046735526] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:57,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:57,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-11-02 22:59:57,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603266813] [2021-11-02 22:59:57,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-02 22:59:57,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:57,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-02 22:59:57,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-02 22:59:57,085 INFO L87 Difference]: Start difference. First operand 85 states and 85 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:57,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:57,125 INFO L93 Difference]: Finished difference Result 91 states and 91 transitions. [2021-11-02 22:59:57,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-02 22:59:57,125 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-11-02 22:59:57,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:57,127 INFO L225 Difference]: With dead ends: 91 [2021-11-02 22:59:57,127 INFO L226 Difference]: Without dead ends: 90 [2021-11-02 22:59:57,127 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-02 22:59:57,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-02 22:59:57,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 89. [2021-11-02 22:59:57,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 87 states have (on average 1.0229885057471264) internal successors, (89), 88 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:57,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2021-11-02 22:59:57,132 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 80 [2021-11-02 22:59:57,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:57,133 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2021-11-02 22:59:57,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 13 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2021-11-02 22:59:57,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-02 22:59:57,134 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:57,134 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 11, 11, 11, 1, 1] [2021-11-02 22:59:57,184 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:57,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-02 22:59:57,360 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:57,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:57,360 INFO L85 PathProgramCache]: Analyzing trace with hash -753200867, now seen corresponding path program 11 times [2021-11-02 22:59:57,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:57,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99939765] [2021-11-02 22:59:57,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:57,361 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:57,540 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:57,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:57,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99939765] [2021-11-02 22:59:57,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99939765] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:57,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519535211] [2021-11-02 22:59:57,542 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 22:59:57,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:57,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:57,543 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:57,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-02 22:59:57,912 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-02 22:59:57,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:57,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-02 22:59:57,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:58,150 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 0 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:58,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519535211] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:58,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:58,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-11-02 22:59:58,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309074700] [2021-11-02 22:59:58,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-02 22:59:58,152 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:58,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-02 22:59:58,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-02 22:59:58,153 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:58,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:58,187 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2021-11-02 22:59:58,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-02 22:59:58,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-02 22:59:58,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:58,189 INFO L225 Difference]: With dead ends: 93 [2021-11-02 22:59:58,189 INFO L226 Difference]: Without dead ends: 92 [2021-11-02 22:59:58,190 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-11-02 22:59:58,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-02 22:59:58,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-02 22:59:58,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 90 states have (on average 1.0222222222222221) internal successors, (92), 91 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:58,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 92 transitions. [2021-11-02 22:59:58,194 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 92 transitions. Word has length 83 [2021-11-02 22:59:58,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:58,195 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 92 transitions. [2021-11-02 22:59:58,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:58,195 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 92 transitions. [2021-11-02 22:59:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-02 22:59:58,196 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:58,196 INFO L513 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 12, 12, 1, 1] [2021-11-02 22:59:58,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:58,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-02 22:59:58,416 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:58,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:58,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1092960927, now seen corresponding path program 12 times [2021-11-02 22:59:58,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:58,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218487464] [2021-11-02 22:59:58,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:58,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:58,547 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:58,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:58,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218487464] [2021-11-02 22:59:58,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218487464] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:58,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559171989] [2021-11-02 22:59:58,549 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 22:59:58,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:58,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:58,550 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:58,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-02 22:59:58,912 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-02 22:59:58,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 22:59:58,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-02 22:59:58,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 22:59:59,132 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 0 proven. 486 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:59,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559171989] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:59,133 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 22:59:59,133 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-11-02 22:59:59,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73533944] [2021-11-02 22:59:59,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-02 22:59:59,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 22:59:59,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-02 22:59:59,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-02 22:59:59,135 INFO L87 Difference]: Start difference. First operand 92 states and 92 transitions. Second operand has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 22:59:59,172 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2021-11-02 22:59:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 22:59:59,172 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-11-02 22:59:59,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 22:59:59,173 INFO L225 Difference]: With dead ends: 98 [2021-11-02 22:59:59,174 INFO L226 Difference]: Without dead ends: 97 [2021-11-02 22:59:59,174 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-02 22:59:59,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-02 22:59:59,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2021-11-02 22:59:59,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 94 states have (on average 1.0212765957446808) internal successors, (96), 95 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:59,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2021-11-02 22:59:59,179 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 87 [2021-11-02 22:59:59,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 22:59:59,179 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2021-11-02 22:59:59,179 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.214285714285714) internal successors, (87), 14 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 22:59:59,179 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2021-11-02 22:59:59,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-02 22:59:59,180 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 22:59:59,181 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 12, 12, 12, 1, 1] [2021-11-02 22:59:59,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-02 22:59:59,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-02 22:59:59,408 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 22:59:59,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 22:59:59,408 INFO L85 PathProgramCache]: Analyzing trace with hash -251861523, now seen corresponding path program 12 times [2021-11-02 22:59:59,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 22:59:59,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619626755] [2021-11-02 22:59:59,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 22:59:59,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 22:59:59,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 22:59:59,550 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 522 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 22:59:59,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 22:59:59,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619626755] [2021-11-02 22:59:59,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619626755] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 22:59:59,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296937199] [2021-11-02 22:59:59,551 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 22:59:59,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 22:59:59,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 22:59:59,556 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 22:59:59,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-02 23:00:00,042 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-02 23:00:00,043 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:00,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-02 23:00:00,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 0 proven. 522 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:00,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296937199] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:00,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:00,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-11-02 23:00:00,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999215324] [2021-11-02 23:00:00,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-02 23:00:00,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:00,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-02 23:00:00,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-02 23:00:00,292 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:00,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:00,327 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2021-11-02 23:00:00,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-02 23:00:00,327 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-11-02 23:00:00,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:00,328 INFO L225 Difference]: With dead ends: 100 [2021-11-02 23:00:00,329 INFO L226 Difference]: Without dead ends: 99 [2021-11-02 23:00:00,330 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-11-02 23:00:00,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-02 23:00:00,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-02 23:00:00,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 97 states have (on average 1.0206185567010309) internal successors, (99), 98 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:00,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2021-11-02 23:00:00,335 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 90 [2021-11-02 23:00:00,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:00,335 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2021-11-02 23:00:00,336 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.428571428571429) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2021-11-02 23:00:00,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-02 23:00:00,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:00,337 INFO L513 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 1, 1] [2021-11-02 23:00:00,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:00,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:00,564 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:00,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:00,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1155159503, now seen corresponding path program 13 times [2021-11-02 23:00:00,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:00,564 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45907531] [2021-11-02 23:00:00,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:00,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:00,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:00,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:00,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45907531] [2021-11-02 23:00:00,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45907531] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:00,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462363933] [2021-11-02 23:00:00,710 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:00:00,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:00,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:00,712 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:00,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-02 23:00:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:01,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-02 23:00:01,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:01,385 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 0 proven. 572 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:01,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462363933] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:01,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:01,385 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-11-02 23:00:01,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987385427] [2021-11-02 23:00:01,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-02 23:00:01,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:01,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-02 23:00:01,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:00:01,390 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:01,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:01,424 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2021-11-02 23:00:01,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-02 23:00:01,425 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-02 23:00:01,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:01,426 INFO L225 Difference]: With dead ends: 105 [2021-11-02 23:00:01,426 INFO L226 Difference]: Without dead ends: 104 [2021-11-02 23:00:01,427 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:00:01,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-02 23:00:01,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2021-11-02 23:00:01,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 101 states have (on average 1.0198019801980198) internal successors, (103), 102 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:01,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 103 transitions. [2021-11-02 23:00:01,431 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 103 transitions. Word has length 94 [2021-11-02 23:00:01,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:01,431 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 103 transitions. [2021-11-02 23:00:01,432 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.266666666666667) internal successors, (94), 15 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:01,432 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 103 transitions. [2021-11-02 23:00:01,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-02 23:00:01,433 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:01,433 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 13, 13, 13, 1, 1] [2021-11-02 23:00:01,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:01,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:01,648 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:01,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash -2078734563, now seen corresponding path program 13 times [2021-11-02 23:00:01,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:01,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97028584] [2021-11-02 23:00:01,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:01,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:01,794 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 0 proven. 611 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:01,794 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:01,794 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97028584] [2021-11-02 23:00:01,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97028584] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:01,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552424209] [2021-11-02 23:00:01,795 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:00:01,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:01,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:01,800 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:01,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-02 23:00:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:02,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-02 23:00:02,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:02,626 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 0 proven. 611 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:02,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552424209] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:02,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:02,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-11-02 23:00:02,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263183056] [2021-11-02 23:00:02,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-02 23:00:02,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:02,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-02 23:00:02,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:00:02,629 INFO L87 Difference]: Start difference. First operand 103 states and 103 transitions. Second operand has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:02,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:02,666 INFO L93 Difference]: Finished difference Result 107 states and 107 transitions. [2021-11-02 23:00:02,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-02 23:00:02,666 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-02 23:00:02,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:02,667 INFO L225 Difference]: With dead ends: 107 [2021-11-02 23:00:02,668 INFO L226 Difference]: Without dead ends: 106 [2021-11-02 23:00:02,669 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-11-02 23:00:02,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-11-02 23:00:02,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2021-11-02 23:00:02,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 104 states have (on average 1.0192307692307692) internal successors, (106), 105 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:02,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2021-11-02 23:00:02,675 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 97 [2021-11-02 23:00:02,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:02,675 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2021-11-02 23:00:02,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 6.466666666666667) internal successors, (97), 15 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:02,676 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2021-11-02 23:00:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-02 23:00:02,677 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:02,677 INFO L513 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 14, 14, 1, 1] [2021-11-02 23:00:02,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:02,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-02 23:00:02,900 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:02,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:02,900 INFO L85 PathProgramCache]: Analyzing trace with hash 871215969, now seen corresponding path program 14 times [2021-11-02 23:00:02,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:02,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749806983] [2021-11-02 23:00:02,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:02,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:03,073 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 0 proven. 665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:03,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:03,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749806983] [2021-11-02 23:00:03,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749806983] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:03,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752502785] [2021-11-02 23:00:03,074 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:00:03,074 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:03,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:03,075 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:03,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-02 23:00:03,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:00:03,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:03,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-02 23:00:03,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:03,858 INFO L134 CoverageAnalysis]: Checked inductivity of 665 backedges. 0 proven. 665 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:03,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752502785] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:03,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:03,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-11-02 23:00:03,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305800427] [2021-11-02 23:00:03,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-02 23:00:03,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:03,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-02 23:00:03,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:00:03,861 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:03,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:03,903 INFO L93 Difference]: Finished difference Result 112 states and 112 transitions. [2021-11-02 23:00:03,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-02 23:00:03,904 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2021-11-02 23:00:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:03,905 INFO L225 Difference]: With dead ends: 112 [2021-11-02 23:00:03,905 INFO L226 Difference]: Without dead ends: 111 [2021-11-02 23:00:03,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:00:03,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-02 23:00:03,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 110. [2021-11-02 23:00:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 1.0185185185185186) internal successors, (110), 109 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:03,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 110 transitions. [2021-11-02 23:00:03,913 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 110 transitions. Word has length 101 [2021-11-02 23:00:03,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:03,914 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 110 transitions. [2021-11-02 23:00:03,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.3125) internal successors, (101), 16 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:03,915 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 110 transitions. [2021-11-02 23:00:03,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-11-02 23:00:03,916 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:03,916 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 14, 14, 14, 1, 1] [2021-11-02 23:00:03,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:04,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:04,140 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:04,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:04,140 INFO L85 PathProgramCache]: Analyzing trace with hash -92393491, now seen corresponding path program 14 times [2021-11-02 23:00:04,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:04,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765166979] [2021-11-02 23:00:04,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:04,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:04,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:04,334 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:04,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765166979] [2021-11-02 23:00:04,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765166979] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:04,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568640151] [2021-11-02 23:00:04,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:00:04,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:04,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:04,336 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:04,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-02 23:00:04,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:00:04,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:04,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-02 23:00:04,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:05,162 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 0 proven. 707 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:05,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [568640151] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:05,162 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:05,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-11-02 23:00:05,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89660897] [2021-11-02 23:00:05,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-02 23:00:05,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:05,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-02 23:00:05,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:00:05,165 INFO L87 Difference]: Start difference. First operand 110 states and 110 transitions. Second operand has 17 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:05,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:05,207 INFO L93 Difference]: Finished difference Result 114 states and 114 transitions. [2021-11-02 23:00:05,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-02 23:00:05,208 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2021-11-02 23:00:05,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:05,209 INFO L225 Difference]: With dead ends: 114 [2021-11-02 23:00:05,209 INFO L226 Difference]: Without dead ends: 113 [2021-11-02 23:00:05,209 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-11-02 23:00:05,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2021-11-02 23:00:05,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2021-11-02 23:00:05,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 111 states have (on average 1.018018018018018) internal successors, (113), 112 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:05,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 113 transitions. [2021-11-02 23:00:05,214 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 113 transitions. Word has length 104 [2021-11-02 23:00:05,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:05,214 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 113 transitions. [2021-11-02 23:00:05,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 6.5) internal successors, (104), 16 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 113 transitions. [2021-11-02 23:00:05,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-02 23:00:05,216 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:05,217 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 1, 1] [2021-11-02 23:00:05,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:05,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-02 23:00:05,430 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:05,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:05,431 INFO L85 PathProgramCache]: Analyzing trace with hash 787608625, now seen corresponding path program 15 times [2021-11-02 23:00:05,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:05,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575716265] [2021-11-02 23:00:05,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:05,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:05,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:05,619 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:05,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:05,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575716265] [2021-11-02 23:00:05,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575716265] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:05,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251337540] [2021-11-02 23:00:05,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:00:05,620 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:05,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:05,621 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:05,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-02 23:00:06,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-02 23:00:06,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:06,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-02 23:00:06,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:06,433 INFO L134 CoverageAnalysis]: Checked inductivity of 765 backedges. 0 proven. 765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:06,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251337540] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:06,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:06,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-11-02 23:00:06,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836669659] [2021-11-02 23:00:06,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-02 23:00:06,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-02 23:00:06,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-02 23:00:06,435 INFO L87 Difference]: Start difference. First operand 113 states and 113 transitions. Second operand has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:06,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:06,476 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2021-11-02 23:00:06,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-02 23:00:06,477 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-02 23:00:06,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:06,477 INFO L225 Difference]: With dead ends: 119 [2021-11-02 23:00:06,478 INFO L226 Difference]: Without dead ends: 118 [2021-11-02 23:00:06,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-02 23:00:06,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-02 23:00:06,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 117. [2021-11-02 23:00:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 1.017391304347826) internal successors, (117), 116 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:06,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 117 transitions. [2021-11-02 23:00:06,481 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 117 transitions. Word has length 108 [2021-11-02 23:00:06,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:06,481 INFO L470 AbstractCegarLoop]: Abstraction has 117 states and 117 transitions. [2021-11-02 23:00:06,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.352941176470588) internal successors, (108), 17 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:06,482 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 117 transitions. [2021-11-02 23:00:06,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-02 23:00:06,482 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:06,482 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 16, 15, 15, 15, 1, 1] [2021-11-02 23:00:06,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:06,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-02 23:00:06,683 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:06,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:06,683 INFO L85 PathProgramCache]: Analyzing trace with hash 242253085, now seen corresponding path program 15 times [2021-11-02 23:00:06,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:06,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458194600] [2021-11-02 23:00:06,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:06,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:06,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:06,890 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 0 proven. 810 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:06,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:06,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458194600] [2021-11-02 23:00:06,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458194600] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:06,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111386531] [2021-11-02 23:00:06,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:00:06,891 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:06,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:06,892 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:06,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-02 23:00:07,632 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-02 23:00:07,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:07,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-02 23:00:07,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:08,032 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 0 proven. 810 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:08,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1111386531] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:08,033 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:08,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-11-02 23:00:08,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039094629] [2021-11-02 23:00:08,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-02 23:00:08,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:08,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-02 23:00:08,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-02 23:00:08,034 INFO L87 Difference]: Start difference. First operand 117 states and 117 transitions. Second operand has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:08,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:08,087 INFO L93 Difference]: Finished difference Result 121 states and 121 transitions. [2021-11-02 23:00:08,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-02 23:00:08,088 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2021-11-02 23:00:08,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:08,090 INFO L225 Difference]: With dead ends: 121 [2021-11-02 23:00:08,090 INFO L226 Difference]: Without dead ends: 120 [2021-11-02 23:00:08,090 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-11-02 23:00:08,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-02 23:00:08,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-11-02 23:00:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 118 states have (on average 1.0169491525423728) internal successors, (120), 119 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 120 transitions. [2021-11-02 23:00:08,095 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 120 transitions. Word has length 111 [2021-11-02 23:00:08,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:08,095 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 120 transitions. [2021-11-02 23:00:08,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 6.529411764705882) internal successors, (111), 17 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:08,096 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 120 transitions. [2021-11-02 23:00:08,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-02 23:00:08,097 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:08,097 INFO L513 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 16, 16, 1, 1] [2021-11-02 23:00:08,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:08,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-02 23:00:08,318 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:08,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:08,319 INFO L85 PathProgramCache]: Analyzing trace with hash 966404449, now seen corresponding path program 16 times [2021-11-02 23:00:08,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:08,319 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498084274] [2021-11-02 23:00:08,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:08,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:08,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:08,656 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:08,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:08,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498084274] [2021-11-02 23:00:08,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498084274] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:08,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548526713] [2021-11-02 23:00:08,657 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:00:08,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:08,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:08,660 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:08,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-02 23:00:09,319 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:00:09,320 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:09,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-02 23:00:09,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 872 backedges. 0 proven. 872 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:09,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [548526713] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:09,669 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:09,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-11-02 23:00:09,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421431436] [2021-11-02 23:00:09,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-02 23:00:09,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:09,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-02 23:00:09,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-02 23:00:09,671 INFO L87 Difference]: Start difference. First operand 120 states and 120 transitions. Second operand has 19 states, 18 states have (on average 6.388888888888889) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:09,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:09,737 INFO L93 Difference]: Finished difference Result 126 states and 126 transitions. [2021-11-02 23:00:09,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:00:09,738 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.388888888888889) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-11-02 23:00:09,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:09,739 INFO L225 Difference]: With dead ends: 126 [2021-11-02 23:00:09,739 INFO L226 Difference]: Without dead ends: 125 [2021-11-02 23:00:09,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-02 23:00:09,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-11-02 23:00:09,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 124. [2021-11-02 23:00:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 122 states have (on average 1.0163934426229508) internal successors, (124), 123 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:09,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2021-11-02 23:00:09,745 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 115 [2021-11-02 23:00:09,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:09,745 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2021-11-02 23:00:09,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.388888888888889) internal successors, (115), 18 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:09,746 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2021-11-02 23:00:09,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-02 23:00:09,747 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:09,747 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 17, 16, 16, 16, 1, 1] [2021-11-02 23:00:09,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:09,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-02 23:00:09,972 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:09,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:09,972 INFO L85 PathProgramCache]: Analyzing trace with hash 989198829, now seen corresponding path program 16 times [2021-11-02 23:00:09,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:09,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384475235] [2021-11-02 23:00:09,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:09,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:10,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:10,238 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:10,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:10,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384475235] [2021-11-02 23:00:10,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384475235] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:10,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459238613] [2021-11-02 23:00:10,239 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:00:10,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:10,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:10,240 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:10,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-02 23:00:10,866 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:00:10,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:10,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-02 23:00:10,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:11,224 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 0 proven. 920 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:11,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459238613] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:11,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:11,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-11-02 23:00:11,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189104497] [2021-11-02 23:00:11,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-02 23:00:11,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:11,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-02 23:00:11,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-02 23:00:11,227 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:11,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:11,277 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2021-11-02 23:00:11,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-02 23:00:11,277 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-11-02 23:00:11,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:11,278 INFO L225 Difference]: With dead ends: 128 [2021-11-02 23:00:11,278 INFO L226 Difference]: Without dead ends: 127 [2021-11-02 23:00:11,279 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-11-02 23:00:11,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-11-02 23:00:11,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2021-11-02 23:00:11,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 125 states have (on average 1.016) internal successors, (127), 126 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:11,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 127 transitions. [2021-11-02 23:00:11,293 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 127 transitions. Word has length 118 [2021-11-02 23:00:11,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:11,294 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 127 transitions. [2021-11-02 23:00:11,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 6.555555555555555) internal successors, (118), 18 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:11,294 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 127 transitions. [2021-11-02 23:00:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-02 23:00:11,296 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:11,296 INFO L513 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 1, 1] [2021-11-02 23:00:11,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:11,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-02 23:00:11,510 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:11,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:11,510 INFO L85 PathProgramCache]: Analyzing trace with hash 2054471217, now seen corresponding path program 17 times [2021-11-02 23:00:11,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:11,511 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459899902] [2021-11-02 23:00:11,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:11,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:11,738 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:11,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:11,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459899902] [2021-11-02 23:00:11,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459899902] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:11,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369229852] [2021-11-02 23:00:11,739 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:00:11,739 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:11,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:11,740 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:11,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-02 23:00:12,492 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-11-02 23:00:12,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:12,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-02 23:00:12,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:12,851 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 0 proven. 986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:12,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369229852] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:12,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:12,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-11-02 23:00:12,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379472015] [2021-11-02 23:00:12,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-02 23:00:12,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:12,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-02 23:00:12,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-02 23:00:12,854 INFO L87 Difference]: Start difference. First operand 127 states and 127 transitions. Second operand has 20 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:12,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:12,923 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2021-11-02 23:00:12,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-02 23:00:12,924 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-02 23:00:12,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:12,925 INFO L225 Difference]: With dead ends: 133 [2021-11-02 23:00:12,925 INFO L226 Difference]: Without dead ends: 132 [2021-11-02 23:00:12,926 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-02 23:00:12,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-11-02 23:00:12,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2021-11-02 23:00:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 129 states have (on average 1.0155038759689923) internal successors, (131), 130 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2021-11-02 23:00:12,933 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 122 [2021-11-02 23:00:12,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:12,934 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2021-11-02 23:00:12,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.421052631578948) internal successors, (122), 19 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:12,934 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2021-11-02 23:00:12,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-02 23:00:12,935 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:12,936 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 17, 17, 17, 1, 1] [2021-11-02 23:00:12,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:13,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:13,151 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:13,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:13,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1468101405, now seen corresponding path program 17 times [2021-11-02 23:00:13,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:13,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583884205] [2021-11-02 23:00:13,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:13,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:13,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 0 proven. 1037 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:13,391 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:13,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583884205] [2021-11-02 23:00:13,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583884205] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:13,391 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914373627] [2021-11-02 23:00:13,391 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:00:13,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:13,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:13,392 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:13,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-02 23:00:14,128 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-11-02 23:00:14,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:14,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-02 23:00:14,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:14,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 0 proven. 1037 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:14,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914373627] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:14,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:14,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-11-02 23:00:14,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868025645] [2021-11-02 23:00:14,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-02 23:00:14,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:14,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-02 23:00:14,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-02 23:00:14,472 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:14,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:14,543 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2021-11-02 23:00:14,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-02 23:00:14,544 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-02 23:00:14,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:14,545 INFO L225 Difference]: With dead ends: 135 [2021-11-02 23:00:14,545 INFO L226 Difference]: Without dead ends: 134 [2021-11-02 23:00:14,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-11-02 23:00:14,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-02 23:00:14,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-02 23:00:14,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 132 states have (on average 1.0151515151515151) internal successors, (134), 133 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:14,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2021-11-02 23:00:14,551 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 125 [2021-11-02 23:00:14,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:14,552 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2021-11-02 23:00:14,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.578947368421052) internal successors, (125), 19 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:14,552 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2021-11-02 23:00:14,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-02 23:00:14,553 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:14,553 INFO L513 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 18, 18, 1, 1] [2021-11-02 23:00:14,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:14,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-02 23:00:14,780 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:14,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:14,780 INFO L85 PathProgramCache]: Analyzing trace with hash 88088417, now seen corresponding path program 18 times [2021-11-02 23:00:14,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:14,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852299828] [2021-11-02 23:00:14,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:14,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:15,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:15,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:15,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852299828] [2021-11-02 23:00:15,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852299828] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:15,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331742450] [2021-11-02 23:00:15,032 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:00:15,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:15,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:15,033 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:15,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-02 23:00:15,770 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-11-02 23:00:15,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:15,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-02 23:00:15,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:16,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1107 backedges. 0 proven. 1107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:16,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331742450] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:16,213 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:16,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-11-02 23:00:16,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115127894] [2021-11-02 23:00:16,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-02 23:00:16,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:16,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-02 23:00:16,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:00:16,214 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand has 21 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:16,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:16,274 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2021-11-02 23:00:16,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-02 23:00:16,274 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-02 23:00:16,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:16,277 INFO L225 Difference]: With dead ends: 140 [2021-11-02 23:00:16,277 INFO L226 Difference]: Without dead ends: 139 [2021-11-02 23:00:16,278 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:00:16,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2021-11-02 23:00:16,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 138. [2021-11-02 23:00:16,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 136 states have (on average 1.0147058823529411) internal successors, (138), 137 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:16,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2021-11-02 23:00:16,284 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 129 [2021-11-02 23:00:16,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:16,285 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2021-11-02 23:00:16,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.45) internal successors, (129), 20 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:16,285 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2021-11-02 23:00:16,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-02 23:00:16,286 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:16,286 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 19, 18, 18, 18, 1, 1] [2021-11-02 23:00:16,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2021-11-02 23:00:16,511 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-11-02 23:00:16,512 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:16,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:16,512 INFO L85 PathProgramCache]: Analyzing trace with hash 17056749, now seen corresponding path program 18 times [2021-11-02 23:00:16,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:16,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201101208] [2021-11-02 23:00:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:16,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:16,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 0 proven. 1161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:16,821 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:16,821 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201101208] [2021-11-02 23:00:16,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201101208] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:16,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [674498018] [2021-11-02 23:00:16,822 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:00:16,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:16,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:16,828 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:16,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-02 23:00:17,627 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-11-02 23:00:17,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:17,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-02 23:00:17,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1161 backedges. 0 proven. 1161 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:18,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [674498018] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:18,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:18,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-11-02 23:00:18,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081139610] [2021-11-02 23:00:18,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-02 23:00:18,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:18,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-02 23:00:18,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:00:18,062 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand has 21 states, 20 states have (on average 6.6) internal successors, (132), 20 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:18,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:18,116 INFO L93 Difference]: Finished difference Result 142 states and 142 transitions. [2021-11-02 23:00:18,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-02 23:00:18,117 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 6.6) internal successors, (132), 20 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 132 [2021-11-02 23:00:18,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:18,119 INFO L225 Difference]: With dead ends: 142 [2021-11-02 23:00:18,119 INFO L226 Difference]: Without dead ends: 141 [2021-11-02 23:00:18,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-11-02 23:00:18,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-02 23:00:18,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2021-11-02 23:00:18,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 139 states have (on average 1.014388489208633) internal successors, (141), 140 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:18,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2021-11-02 23:00:18,125 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 132 [2021-11-02 23:00:18,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:18,126 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2021-11-02 23:00:18,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 6.6) internal successors, (132), 20 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:18,126 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2021-11-02 23:00:18,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-02 23:00:18,127 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:18,127 INFO L513 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1] [2021-11-02 23:00:18,166 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Ended with exit code 0 [2021-11-02 23:00:18,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:18,344 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:18,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:18,344 INFO L85 PathProgramCache]: Analyzing trace with hash -1672607695, now seen corresponding path program 19 times [2021-11-02 23:00:18,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:18,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815408647] [2021-11-02 23:00:18,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:18,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:18,661 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:18,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:18,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815408647] [2021-11-02 23:00:18,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815408647] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:18,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278864635] [2021-11-02 23:00:18,662 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:00:18,662 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:18,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:18,663 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:18,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-02 23:00:19,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:19,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-02 23:00:19,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:19,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 0 proven. 1235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:19,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1278864635] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:19,901 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:19,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-11-02 23:00:19,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726931230] [2021-11-02 23:00:19,902 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-02 23:00:19,902 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:19,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-02 23:00:19,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:00:19,903 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand has 22 states, 21 states have (on average 6.476190476190476) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:19,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:19,961 INFO L93 Difference]: Finished difference Result 147 states and 147 transitions. [2021-11-02 23:00:19,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-02 23:00:19,961 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.476190476190476) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2021-11-02 23:00:19,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:19,962 INFO L225 Difference]: With dead ends: 147 [2021-11-02 23:00:19,962 INFO L226 Difference]: Without dead ends: 146 [2021-11-02 23:00:19,963 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:00:19,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2021-11-02 23:00:19,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 145. [2021-11-02 23:00:19,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 143 states have (on average 1.013986013986014) internal successors, (145), 144 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 145 transitions. [2021-11-02 23:00:19,968 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 145 transitions. Word has length 136 [2021-11-02 23:00:19,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:19,968 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 145 transitions. [2021-11-02 23:00:19,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.476190476190476) internal successors, (136), 21 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:19,969 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 145 transitions. [2021-11-02 23:00:19,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-02 23:00:19,970 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:19,970 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 19, 19, 19, 1, 1] [2021-11-02 23:00:20,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:20,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:20,192 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:20,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:20,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1554770205, now seen corresponding path program 19 times [2021-11-02 23:00:20,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:20,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137221640] [2021-11-02 23:00:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:20,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:20,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:20,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:20,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137221640] [2021-11-02 23:00:20,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137221640] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:20,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781856215] [2021-11-02 23:00:20,542 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:00:20,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:20,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:20,548 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:20,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-02 23:00:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:21,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-02 23:00:21,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:21,992 INFO L134 CoverageAnalysis]: Checked inductivity of 1292 backedges. 0 proven. 1292 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:21,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781856215] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:21,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:21,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-11-02 23:00:21,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19553071] [2021-11-02 23:00:21,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-02 23:00:21,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:21,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-02 23:00:21,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:00:21,994 INFO L87 Difference]: Start difference. First operand 145 states and 145 transitions. Second operand has 22 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:22,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:22,049 INFO L93 Difference]: Finished difference Result 149 states and 149 transitions. [2021-11-02 23:00:22,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-02 23:00:22,050 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 139 [2021-11-02 23:00:22,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:22,051 INFO L225 Difference]: With dead ends: 149 [2021-11-02 23:00:22,052 INFO L226 Difference]: Without dead ends: 148 [2021-11-02 23:00:22,052 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-11-02 23:00:22,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2021-11-02 23:00:22,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-11-02 23:00:22,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 146 states have (on average 1.0136986301369864) internal successors, (148), 147 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:22,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 148 transitions. [2021-11-02 23:00:22,059 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 148 transitions. Word has length 139 [2021-11-02 23:00:22,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:22,059 INFO L470 AbstractCegarLoop]: Abstraction has 148 states and 148 transitions. [2021-11-02 23:00:22,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 6.619047619047619) internal successors, (139), 21 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:22,060 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 148 transitions. [2021-11-02 23:00:22,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2021-11-02 23:00:22,061 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:22,061 INFO L513 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 20, 20, 1, 1] [2021-11-02 23:00:22,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Ended with exit code 0 [2021-11-02 23:00:22,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-11-02 23:00:22,262 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:22,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:22,262 INFO L85 PathProgramCache]: Analyzing trace with hash -465595039, now seen corresponding path program 20 times [2021-11-02 23:00:22,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:22,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576678976] [2021-11-02 23:00:22,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:22,263 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:22,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:22,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576678976] [2021-11-02 23:00:22,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576678976] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:22,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678246181] [2021-11-02 23:00:22,578 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:00:22,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:22,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:22,605 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:22,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-02 23:00:23,623 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:00:23,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:23,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-02 23:00:23,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:24,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1370 backedges. 0 proven. 1370 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:24,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678246181] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:24,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:24,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-11-02 23:00:24,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326069980] [2021-11-02 23:00:24,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-02 23:00:24,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:24,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-02 23:00:24,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-02 23:00:24,054 INFO L87 Difference]: Start difference. First operand 148 states and 148 transitions. Second operand has 23 states, 22 states have (on average 6.5) internal successors, (143), 22 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:24,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:24,134 INFO L93 Difference]: Finished difference Result 154 states and 154 transitions. [2021-11-02 23:00:24,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-02 23:00:24,135 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.5) internal successors, (143), 22 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 143 [2021-11-02 23:00:24,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:24,136 INFO L225 Difference]: With dead ends: 154 [2021-11-02 23:00:24,137 INFO L226 Difference]: Without dead ends: 153 [2021-11-02 23:00:24,139 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-02 23:00:24,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2021-11-02 23:00:24,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 152. [2021-11-02 23:00:24,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 150 states have (on average 1.0133333333333334) internal successors, (152), 151 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:24,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 152 transitions. [2021-11-02 23:00:24,145 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 152 transitions. Word has length 143 [2021-11-02 23:00:24,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:24,146 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 152 transitions. [2021-11-02 23:00:24,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.5) internal successors, (143), 22 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:24,146 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 152 transitions. [2021-11-02 23:00:24,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2021-11-02 23:00:24,147 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:24,148 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 21, 21, 20, 20, 20, 1, 1] [2021-11-02 23:00:24,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:24,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:24,364 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:24,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:24,364 INFO L85 PathProgramCache]: Analyzing trace with hash -2092364307, now seen corresponding path program 20 times [2021-11-02 23:00:24,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:24,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296725312] [2021-11-02 23:00:24,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:24,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:24,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:24,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:24,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296725312] [2021-11-02 23:00:24,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296725312] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:24,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391915145] [2021-11-02 23:00:24,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:00:24,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:24,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:24,728 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:24,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-11-02 23:00:25,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:00:25,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:25,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-02 23:00:25,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:26,188 INFO L134 CoverageAnalysis]: Checked inductivity of 1430 backedges. 0 proven. 1430 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:26,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391915145] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:26,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:26,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-11-02 23:00:26,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465939686] [2021-11-02 23:00:26,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-02 23:00:26,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:26,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-02 23:00:26,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-02 23:00:26,190 INFO L87 Difference]: Start difference. First operand 152 states and 152 transitions. Second operand has 23 states, 22 states have (on average 6.636363636363637) internal successors, (146), 22 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:26,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:26,250 INFO L93 Difference]: Finished difference Result 156 states and 156 transitions. [2021-11-02 23:00:26,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-02 23:00:26,251 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 6.636363636363637) internal successors, (146), 22 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2021-11-02 23:00:26,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:26,252 INFO L225 Difference]: With dead ends: 156 [2021-11-02 23:00:26,252 INFO L226 Difference]: Without dead ends: 155 [2021-11-02 23:00:26,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-11-02 23:00:26,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-11-02 23:00:26,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2021-11-02 23:00:26,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 1.0130718954248366) internal successors, (155), 154 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:26,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 155 transitions. [2021-11-02 23:00:26,259 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 155 transitions. Word has length 146 [2021-11-02 23:00:26,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:26,259 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 155 transitions. [2021-11-02 23:00:26,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 6.636363636363637) internal successors, (146), 22 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:26,260 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 155 transitions. [2021-11-02 23:00:26,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-02 23:00:26,261 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:26,261 INFO L513 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 21, 21, 1, 1] [2021-11-02 23:00:26,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-11-02 23:00:26,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:26,488 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:26,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:26,488 INFO L85 PathProgramCache]: Analyzing trace with hash 2065551921, now seen corresponding path program 21 times [2021-11-02 23:00:26,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:26,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868610728] [2021-11-02 23:00:26,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:26,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:26,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 1512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:26,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:26,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868610728] [2021-11-02 23:00:26,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868610728] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:26,842 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543996757] [2021-11-02 23:00:26,843 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:00:26,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:26,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:26,844 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:26,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-11-02 23:00:27,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-11-02 23:00:27,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:27,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-02 23:00:27,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 1512 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:28,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543996757] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:28,368 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:28,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-11-02 23:00:28,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829481215] [2021-11-02 23:00:28,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-02 23:00:28,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:28,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-02 23:00:28,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-02 23:00:28,370 INFO L87 Difference]: Start difference. First operand 155 states and 155 transitions. Second operand has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:28,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:28,437 INFO L93 Difference]: Finished difference Result 161 states and 161 transitions. [2021-11-02 23:00:28,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:00:28,438 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2021-11-02 23:00:28,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:28,439 INFO L225 Difference]: With dead ends: 161 [2021-11-02 23:00:28,439 INFO L226 Difference]: Without dead ends: 160 [2021-11-02 23:00:28,439 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-02 23:00:28,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-11-02 23:00:28,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 159. [2021-11-02 23:00:28,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 157 states have (on average 1.0127388535031847) internal successors, (159), 158 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:28,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2021-11-02 23:00:28,448 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 150 [2021-11-02 23:00:28,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:28,449 INFO L470 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2021-11-02 23:00:28,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.521739130434782) internal successors, (150), 23 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:28,449 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2021-11-02 23:00:28,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-02 23:00:28,450 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:28,451 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 21, 21, 21, 1, 1] [2021-11-02 23:00:28,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-11-02 23:00:28,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-02 23:00:28,671 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:28,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:28,674 INFO L85 PathProgramCache]: Analyzing trace with hash 860872477, now seen corresponding path program 21 times [2021-11-02 23:00:28,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:28,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979115094] [2021-11-02 23:00:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:28,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:28,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:29,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:29,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979115094] [2021-11-02 23:00:29,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979115094] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:29,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399574271] [2021-11-02 23:00:29,049 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:00:29,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:29,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:29,050 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:29,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-02 23:00:30,279 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-11-02 23:00:30,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:30,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-02 23:00:30,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:30,699 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:30,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399574271] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:30,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:30,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-11-02 23:00:30,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562683342] [2021-11-02 23:00:30,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-02 23:00:30,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:30,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-02 23:00:30,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-02 23:00:30,701 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 23 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:30,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:30,780 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2021-11-02 23:00:30,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-02 23:00:30,781 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 23 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-02 23:00:30,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:30,782 INFO L225 Difference]: With dead ends: 163 [2021-11-02 23:00:30,783 INFO L226 Difference]: Without dead ends: 162 [2021-11-02 23:00:30,783 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-02 23:00:30,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-11-02 23:00:30,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2021-11-02 23:00:30,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 160 states have (on average 1.0125) internal successors, (162), 161 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:30,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2021-11-02 23:00:30,789 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 153 [2021-11-02 23:00:30,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:30,790 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2021-11-02 23:00:30,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 6.6521739130434785) internal successors, (153), 23 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:30,790 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2021-11-02 23:00:30,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2021-11-02 23:00:30,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:30,791 INFO L513 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 22, 22, 1, 1] [2021-11-02 23:00:30,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:31,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47,43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:31,014 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:31,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:31,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1006144353, now seen corresponding path program 22 times [2021-11-02 23:00:31,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:31,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447924501] [2021-11-02 23:00:31,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:31,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:31,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:31,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447924501] [2021-11-02 23:00:31,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447924501] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:31,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027505151] [2021-11-02 23:00:31,459 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:00:31,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:31,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:31,461 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:31,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-02 23:00:32,811 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:00:32,811 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:32,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-02 23:00:32,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:33,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 1661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:33,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027505151] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:33,266 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:33,266 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-11-02 23:00:33,266 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371203714] [2021-11-02 23:00:33,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-02 23:00:33,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:33,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-02 23:00:33,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:00:33,268 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 25 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:33,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:33,352 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2021-11-02 23:00:33,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-02 23:00:33,353 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 157 [2021-11-02 23:00:33,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:33,354 INFO L225 Difference]: With dead ends: 168 [2021-11-02 23:00:33,354 INFO L226 Difference]: Without dead ends: 167 [2021-11-02 23:00:33,356 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:00:33,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-02 23:00:33,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2021-11-02 23:00:33,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 164 states have (on average 1.0121951219512195) internal successors, (166), 165 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:33,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2021-11-02 23:00:33,363 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 157 [2021-11-02 23:00:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:33,363 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2021-11-02 23:00:33,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.541666666666667) internal successors, (157), 24 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:33,364 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2021-11-02 23:00:33,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-11-02 23:00:33,365 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:33,365 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 22, 22, 22, 1, 1] [2021-11-02 23:00:33,396 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-11-02 23:00:33,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-02 23:00:33,576 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:33,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:33,576 INFO L85 PathProgramCache]: Analyzing trace with hash -530294803, now seen corresponding path program 22 times [2021-11-02 23:00:33,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:33,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715090733] [2021-11-02 23:00:33,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:33,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:33,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:33,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:33,969 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715090733] [2021-11-02 23:00:33,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715090733] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:33,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1809419512] [2021-11-02 23:00:33,970 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:00:33,970 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:33,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:33,972 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:33,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-02 23:00:35,303 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:00:35,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:35,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-02 23:00:35,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:35,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1727 backedges. 0 proven. 1727 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:35,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1809419512] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:35,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:35,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-11-02 23:00:35,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265323976] [2021-11-02 23:00:35,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-02 23:00:35,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:35,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-02 23:00:35,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:00:35,792 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 24 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:35,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:35,880 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2021-11-02 23:00:35,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-02 23:00:35,881 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 24 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-11-02 23:00:35,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:35,882 INFO L225 Difference]: With dead ends: 170 [2021-11-02 23:00:35,882 INFO L226 Difference]: Without dead ends: 169 [2021-11-02 23:00:35,882 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-11-02 23:00:35,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2021-11-02 23:00:35,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 169. [2021-11-02 23:00:35,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 167 states have (on average 1.0119760479041917) internal successors, (169), 168 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:35,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2021-11-02 23:00:35,888 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 160 [2021-11-02 23:00:35,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:35,888 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2021-11-02 23:00:35,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 6.666666666666667) internal successors, (160), 24 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:35,889 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2021-11-02 23:00:35,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-11-02 23:00:35,890 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:35,890 INFO L513 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 1, 1] [2021-11-02 23:00:35,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:36,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-11-02 23:00:36,112 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:36,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:36,112 INFO L85 PathProgramCache]: Analyzing trace with hash -444326863, now seen corresponding path program 23 times [2021-11-02 23:00:36,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:36,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158893850] [2021-11-02 23:00:36,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:36,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 0 proven. 1817 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:36,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:36,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158893850] [2021-11-02 23:00:36,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158893850] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:36,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722437023] [2021-11-02 23:00:36,539 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:00:36,539 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:36,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:36,541 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:36,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-02 23:00:37,840 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-11-02 23:00:37,840 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:37,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-02 23:00:37,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:38,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1817 backedges. 0 proven. 1817 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:38,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722437023] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:38,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:38,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-11-02 23:00:38,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575129325] [2021-11-02 23:00:38,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-02 23:00:38,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:38,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-02 23:00:38,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-02 23:00:38,322 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand has 26 states, 25 states have (on average 6.56) internal successors, (164), 25 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:38,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:38,380 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2021-11-02 23:00:38,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-02 23:00:38,380 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.56) internal successors, (164), 25 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 164 [2021-11-02 23:00:38,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:38,382 INFO L225 Difference]: With dead ends: 175 [2021-11-02 23:00:38,382 INFO L226 Difference]: Without dead ends: 174 [2021-11-02 23:00:38,382 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-02 23:00:38,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-02 23:00:38,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 173. [2021-11-02 23:00:38,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 171 states have (on average 1.0116959064327486) internal successors, (173), 172 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:38,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 173 transitions. [2021-11-02 23:00:38,388 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 173 transitions. Word has length 164 [2021-11-02 23:00:38,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:38,389 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 173 transitions. [2021-11-02 23:00:38,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.56) internal successors, (164), 25 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:38,389 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 173 transitions. [2021-11-02 23:00:38,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-11-02 23:00:38,390 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:38,391 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 24, 24, 23, 23, 23, 1, 1] [2021-11-02 23:00:38,436 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:38,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:38,604 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:38,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:38,604 INFO L85 PathProgramCache]: Analyzing trace with hash 147674397, now seen corresponding path program 23 times [2021-11-02 23:00:38,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:38,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451968901] [2021-11-02 23:00:38,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:38,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:38,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:39,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1886 backedges. 0 proven. 1886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:39,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:39,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451968901] [2021-11-02 23:00:39,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451968901] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:39,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576222192] [2021-11-02 23:00:39,018 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:00:39,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:39,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:39,019 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:39,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-02 23:00:40,365 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-11-02 23:00:40,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:40,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 316 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-02 23:00:40,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:40,875 INFO L134 CoverageAnalysis]: Checked inductivity of 1886 backedges. 0 proven. 1886 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:40,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576222192] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:40,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:40,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-11-02 23:00:40,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200906031] [2021-11-02 23:00:40,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-11-02 23:00:40,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:40,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-11-02 23:00:40,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-02 23:00:40,882 INFO L87 Difference]: Start difference. First operand 173 states and 173 transitions. Second operand has 26 states, 25 states have (on average 6.68) internal successors, (167), 25 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:40,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:40,959 INFO L93 Difference]: Finished difference Result 177 states and 177 transitions. [2021-11-02 23:00:40,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-11-02 23:00:40,960 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 6.68) internal successors, (167), 25 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 167 [2021-11-02 23:00:40,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:40,962 INFO L225 Difference]: With dead ends: 177 [2021-11-02 23:00:40,962 INFO L226 Difference]: Without dead ends: 176 [2021-11-02 23:00:40,962 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-11-02 23:00:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-02 23:00:40,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2021-11-02 23:00:40,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 174 states have (on average 1.0114942528735633) internal successors, (176), 175 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:40,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2021-11-02 23:00:40,968 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 167 [2021-11-02 23:00:40,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:40,969 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2021-11-02 23:00:40,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 6.68) internal successors, (167), 25 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2021-11-02 23:00:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-02 23:00:40,971 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:40,971 INFO L513 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 1, 1] [2021-11-02 23:00:41,016 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-11-02 23:00:41,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:41,188 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:41,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:41,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1983184543, now seen corresponding path program 24 times [2021-11-02 23:00:41,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:41,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325623753] [2021-11-02 23:00:41,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:41,189 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:41,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:41,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325623753] [2021-11-02 23:00:41,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325623753] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:41,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955530194] [2021-11-02 23:00:41,594 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:00:41,594 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:41,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:41,596 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:41,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-11-02 23:00:43,248 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-11-02 23:00:43,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:43,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-02 23:00:43,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1980 backedges. 0 proven. 1980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:43,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955530194] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:43,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:43,794 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-11-02 23:00:43,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847752624] [2021-11-02 23:00:43,794 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-02 23:00:43,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:43,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-02 23:00:43,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-02 23:00:43,796 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand has 27 states, 26 states have (on average 6.576923076923077) internal successors, (171), 26 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:43,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:43,881 INFO L93 Difference]: Finished difference Result 182 states and 182 transitions. [2021-11-02 23:00:43,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-02 23:00:43,881 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 6.576923076923077) internal successors, (171), 26 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 171 [2021-11-02 23:00:43,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:43,883 INFO L225 Difference]: With dead ends: 182 [2021-11-02 23:00:43,883 INFO L226 Difference]: Without dead ends: 181 [2021-11-02 23:00:43,884 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-02 23:00:43,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2021-11-02 23:00:43,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 180. [2021-11-02 23:00:43,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 178 states have (on average 1.0112359550561798) internal successors, (180), 179 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:43,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 180 transitions. [2021-11-02 23:00:43,891 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 180 transitions. Word has length 171 [2021-11-02 23:00:43,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:43,891 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 180 transitions. [2021-11-02 23:00:43,891 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 6.576923076923077) internal successors, (171), 26 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:43,892 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 180 transitions. [2021-11-02 23:00:43,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2021-11-02 23:00:43,893 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:43,893 INFO L513 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 24, 24, 24, 1, 1] [2021-11-02 23:00:43,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:44,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:44,108 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:44,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:44,108 INFO L85 PathProgramCache]: Analyzing trace with hash 519447021, now seen corresponding path program 24 times [2021-11-02 23:00:44,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:44,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232857254] [2021-11-02 23:00:44,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:44,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:44,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2052 backedges. 0 proven. 2052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:44,599 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:44,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232857254] [2021-11-02 23:00:44,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232857254] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:44,599 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672670903] [2021-11-02 23:00:44,600 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:00:44,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:44,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:44,604 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:44,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-02 23:00:46,126 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-11-02 23:00:46,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:46,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-02 23:00:46,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:46,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2052 backedges. 0 proven. 2052 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:46,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672670903] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:46,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:46,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-11-02 23:00:46,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848084196] [2021-11-02 23:00:46,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-02 23:00:46,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:46,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-02 23:00:46,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-02 23:00:46,659 INFO L87 Difference]: Start difference. First operand 180 states and 180 transitions. Second operand has 27 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:46,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:46,748 INFO L93 Difference]: Finished difference Result 184 states and 184 transitions. [2021-11-02 23:00:46,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-02 23:00:46,748 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 174 [2021-11-02 23:00:46,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:46,750 INFO L225 Difference]: With dead ends: 184 [2021-11-02 23:00:46,750 INFO L226 Difference]: Without dead ends: 183 [2021-11-02 23:00:46,750 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-11-02 23:00:46,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-02 23:00:46,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2021-11-02 23:00:46,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 1.011049723756906) internal successors, (183), 182 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:46,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 183 transitions. [2021-11-02 23:00:46,755 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 183 transitions. Word has length 174 [2021-11-02 23:00:46,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:46,755 INFO L470 AbstractCegarLoop]: Abstraction has 183 states and 183 transitions. [2021-11-02 23:00:46,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 6.6923076923076925) internal successors, (174), 26 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 183 transitions. [2021-11-02 23:00:46,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-02 23:00:46,757 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:46,757 INFO L513 BasicCegarLoop]: trace histogram [26, 25, 25, 25, 25, 25, 25, 1, 1] [2021-11-02 23:00:46,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-11-02 23:00:46,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-11-02 23:00:46,984 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:46,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:46,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1843337679, now seen corresponding path program 25 times [2021-11-02 23:00:46,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:46,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134212496] [2021-11-02 23:00:46,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:46,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:47,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:47,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:47,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:47,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134212496] [2021-11-02 23:00:47,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134212496] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:47,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524950383] [2021-11-02 23:00:47,385 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:00:47,385 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:47,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:47,386 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:47,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-11-02 23:00:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:48,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-02 23:00:48,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:49,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2150 backedges. 0 proven. 2150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:49,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524950383] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:49,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:49,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-11-02 23:00:49,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821570186] [2021-11-02 23:00:49,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-02 23:00:49,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:49,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-02 23:00:49,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-02 23:00:49,404 INFO L87 Difference]: Start difference. First operand 183 states and 183 transitions. Second operand has 28 states, 27 states have (on average 6.592592592592593) internal successors, (178), 27 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:49,496 INFO L93 Difference]: Finished difference Result 189 states and 189 transitions. [2021-11-02 23:00:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-02 23:00:49,497 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.592592592592593) internal successors, (178), 27 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 178 [2021-11-02 23:00:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:49,498 INFO L225 Difference]: With dead ends: 189 [2021-11-02 23:00:49,499 INFO L226 Difference]: Without dead ends: 188 [2021-11-02 23:00:49,499 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-02 23:00:49,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-11-02 23:00:49,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 187. [2021-11-02 23:00:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 185 states have (on average 1.0108108108108107) internal successors, (187), 186 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:49,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 187 transitions. [2021-11-02 23:00:49,505 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 187 transitions. Word has length 178 [2021-11-02 23:00:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:49,505 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 187 transitions. [2021-11-02 23:00:49,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.592592592592593) internal successors, (178), 27 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:49,506 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 187 transitions. [2021-11-02 23:00:49,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-11-02 23:00:49,507 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:49,507 INFO L513 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 25, 25, 25, 1, 1] [2021-11-02 23:00:49,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:49,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:49,722 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:49,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:49,722 INFO L85 PathProgramCache]: Analyzing trace with hash 579095325, now seen corresponding path program 25 times [2021-11-02 23:00:49,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:49,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415303866] [2021-11-02 23:00:49,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:49,723 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:50,250 INFO L134 CoverageAnalysis]: Checked inductivity of 2225 backedges. 0 proven. 2225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:50,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:50,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415303866] [2021-11-02 23:00:50,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415303866] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:50,251 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [398900240] [2021-11-02 23:00:50,251 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:00:50,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:50,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:50,256 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:50,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-11-02 23:00:52,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:52,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 27 conjunts are in the unsatisfiable core [2021-11-02 23:00:52,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:52,698 INFO L134 CoverageAnalysis]: Checked inductivity of 2225 backedges. 0 proven. 2225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:52,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [398900240] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:52,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:52,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-11-02 23:00:52,699 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652825261] [2021-11-02 23:00:52,699 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-11-02 23:00:52,700 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:52,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-11-02 23:00:52,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-02 23:00:52,700 INFO L87 Difference]: Start difference. First operand 187 states and 187 transitions. Second operand has 28 states, 27 states have (on average 6.703703703703703) internal successors, (181), 27 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:52,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:52,802 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2021-11-02 23:00:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-02 23:00:52,803 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 6.703703703703703) internal successors, (181), 27 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-11-02 23:00:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:52,805 INFO L225 Difference]: With dead ends: 191 [2021-11-02 23:00:52,805 INFO L226 Difference]: Without dead ends: 190 [2021-11-02 23:00:52,806 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-11-02 23:00:52,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-02 23:00:52,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2021-11-02 23:00:52,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 188 states have (on average 1.0106382978723405) internal successors, (190), 189 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:52,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 190 transitions. [2021-11-02 23:00:52,813 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 190 transitions. Word has length 181 [2021-11-02 23:00:52,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:52,813 INFO L470 AbstractCegarLoop]: Abstraction has 190 states and 190 transitions. [2021-11-02 23:00:52,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 6.703703703703703) internal successors, (181), 27 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:52,814 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 190 transitions. [2021-11-02 23:00:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-02 23:00:52,815 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:52,816 INFO L513 BasicCegarLoop]: trace histogram [27, 26, 26, 26, 26, 26, 26, 1, 1] [2021-11-02 23:00:52,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:53,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55,51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:53,044 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:53,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:53,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1662449505, now seen corresponding path program 26 times [2021-11-02 23:00:53,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:53,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270925257] [2021-11-02 23:00:53,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:53,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:53,556 INFO L134 CoverageAnalysis]: Checked inductivity of 2327 backedges. 0 proven. 2327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:53,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:53,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270925257] [2021-11-02 23:00:53,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270925257] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:53,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440413453] [2021-11-02 23:00:53,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:00:53,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:53,557 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:53,560 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:53,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-11-02 23:00:55,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:00:55,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:55,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-02 23:00:55,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2327 backedges. 0 proven. 2327 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:55,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440413453] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:55,706 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:55,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-11-02 23:00:55,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577781972] [2021-11-02 23:00:55,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-02 23:00:55,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:55,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-02 23:00:55,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-02 23:00:55,707 INFO L87 Difference]: Start difference. First operand 190 states and 190 transitions. Second operand has 29 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:55,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:55,768 INFO L93 Difference]: Finished difference Result 196 states and 196 transitions. [2021-11-02 23:00:55,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-02 23:00:55,768 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-11-02 23:00:55,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:55,769 INFO L225 Difference]: With dead ends: 196 [2021-11-02 23:00:55,770 INFO L226 Difference]: Without dead ends: 195 [2021-11-02 23:00:55,770 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-02 23:00:55,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-11-02 23:00:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 194. [2021-11-02 23:00:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 192 states have (on average 1.0104166666666667) internal successors, (194), 193 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:55,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2021-11-02 23:00:55,776 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 185 [2021-11-02 23:00:55,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:55,776 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2021-11-02 23:00:55,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.607142857142857) internal successors, (185), 28 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:55,776 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2021-11-02 23:00:55,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-02 23:00:55,778 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:55,778 INFO L513 BasicCegarLoop]: trace histogram [27, 27, 27, 27, 26, 26, 26, 1, 1] [2021-11-02 23:00:55,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:56,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-11-02 23:00:56,004 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:56,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:56,004 INFO L85 PathProgramCache]: Analyzing trace with hash 765357037, now seen corresponding path program 26 times [2021-11-02 23:00:56,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:56,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360458616] [2021-11-02 23:00:56,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:56,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:56,455 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 0 proven. 2405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:56,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:56,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360458616] [2021-11-02 23:00:56,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360458616] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:56,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636953832] [2021-11-02 23:00:56,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:00:56,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:56,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:56,457 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:56,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-02 23:00:57,995 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:00:57,995 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:00:57,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-02 23:00:57,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:00:58,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2405 backedges. 0 proven. 2405 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:58,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636953832] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:58,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:00:58,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-11-02 23:00:58,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288866211] [2021-11-02 23:00:58,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-02 23:00:58,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:00:58,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-02 23:00:58,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-02 23:00:58,467 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 28 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:58,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:00:58,522 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2021-11-02 23:00:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-02 23:00:58,522 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 28 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-11-02 23:00:58,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:00:58,523 INFO L225 Difference]: With dead ends: 198 [2021-11-02 23:00:58,524 INFO L226 Difference]: Without dead ends: 197 [2021-11-02 23:00:58,524 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-11-02 23:00:58,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-02 23:00:58,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2021-11-02 23:00:58,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 195 states have (on average 1.0102564102564102) internal successors, (197), 196 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 197 transitions. [2021-11-02 23:00:58,529 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 197 transitions. Word has length 188 [2021-11-02 23:00:58,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:00:58,530 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 197 transitions. [2021-11-02 23:00:58,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 6.714285714285714) internal successors, (188), 28 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:00:58,530 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 197 transitions. [2021-11-02 23:00:58,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-11-02 23:00:58,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:00:58,532 INFO L513 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 27, 27, 1, 1] [2021-11-02 23:00:58,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-11-02 23:00:58,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-11-02 23:00:58,740 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:00:58,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:00:58,740 INFO L85 PathProgramCache]: Analyzing trace with hash 529805361, now seen corresponding path program 27 times [2021-11-02 23:00:58,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:00:58,740 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457687347] [2021-11-02 23:00:58,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:00:58,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:00:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:00:59,153 INFO L134 CoverageAnalysis]: Checked inductivity of 2511 backedges. 0 proven. 2511 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:00:59,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:00:59,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457687347] [2021-11-02 23:00:59,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457687347] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:00:59,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612867828] [2021-11-02 23:00:59,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:00:59,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:00:59,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:00:59,154 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:00:59,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-11-02 23:01:00,718 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-11-02 23:01:00,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:00,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-02 23:01:00,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:01,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2511 backedges. 0 proven. 2511 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:01,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612867828] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:01,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:01,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-11-02 23:01:01,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56856295] [2021-11-02 23:01:01,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-02 23:01:01,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:01,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-02 23:01:01,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-02 23:01:01,240 INFO L87 Difference]: Start difference. First operand 197 states and 197 transitions. Second operand has 30 states, 29 states have (on average 6.620689655172414) internal successors, (192), 29 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:01,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:01,320 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2021-11-02 23:01:01,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-02 23:01:01,320 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.620689655172414) internal successors, (192), 29 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2021-11-02 23:01:01,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:01,322 INFO L225 Difference]: With dead ends: 203 [2021-11-02 23:01:01,322 INFO L226 Difference]: Without dead ends: 202 [2021-11-02 23:01:01,323 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-02 23:01:01,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-11-02 23:01:01,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2021-11-02 23:01:01,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 199 states have (on average 1.0100502512562815) internal successors, (201), 200 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:01,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 201 transitions. [2021-11-02 23:01:01,328 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 201 transitions. Word has length 192 [2021-11-02 23:01:01,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:01,329 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 201 transitions. [2021-11-02 23:01:01,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.620689655172414) internal successors, (192), 29 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:01,329 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 201 transitions. [2021-11-02 23:01:01,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-02 23:01:01,331 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:01,331 INFO L513 BasicCegarLoop]: trace histogram [28, 28, 28, 28, 27, 27, 27, 1, 1] [2021-11-02 23:01:01,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:01,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-11-02 23:01:01,556 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:01,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:01,556 INFO L85 PathProgramCache]: Analyzing trace with hash -573259491, now seen corresponding path program 27 times [2021-11-02 23:01:01,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:01,556 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222412227] [2021-11-02 23:01:01,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:01,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:01,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2592 backedges. 0 proven. 2592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:01,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:01,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222412227] [2021-11-02 23:01:01,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222412227] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:01,968 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989236578] [2021-11-02 23:01:01,968 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:01:01,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:01,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:01,969 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:01,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-02 23:01:03,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-11-02 23:01:03,657 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:03,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 29 conjunts are in the unsatisfiable core [2021-11-02 23:01:03,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2592 backedges. 0 proven. 2592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:04,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989236578] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:04,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:04,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-11-02 23:01:04,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955870706] [2021-11-02 23:01:04,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-11-02 23:01:04,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:04,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-11-02 23:01:04,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-02 23:01:04,176 INFO L87 Difference]: Start difference. First operand 201 states and 201 transitions. Second operand has 30 states, 29 states have (on average 6.724137931034483) internal successors, (195), 29 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:04,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:04,237 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2021-11-02 23:01:04,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-11-02 23:01:04,238 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 6.724137931034483) internal successors, (195), 29 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-11-02 23:01:04,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:04,239 INFO L225 Difference]: With dead ends: 205 [2021-11-02 23:01:04,239 INFO L226 Difference]: Without dead ends: 204 [2021-11-02 23:01:04,239 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-11-02 23:01:04,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2021-11-02 23:01:04,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 204. [2021-11-02 23:01:04,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 202 states have (on average 1.00990099009901) internal successors, (204), 203 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:04,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 204 transitions. [2021-11-02 23:01:04,245 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 204 transitions. Word has length 195 [2021-11-02 23:01:04,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:04,245 INFO L470 AbstractCegarLoop]: Abstraction has 204 states and 204 transitions. [2021-11-02 23:01:04,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 6.724137931034483) internal successors, (195), 29 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:04,246 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 204 transitions. [2021-11-02 23:01:04,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2021-11-02 23:01:04,247 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:04,247 INFO L513 BasicCegarLoop]: trace histogram [29, 28, 28, 28, 28, 28, 28, 1, 1] [2021-11-02 23:01:04,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:04,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-11-02 23:01:04,467 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:04,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:04,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1966894433, now seen corresponding path program 28 times [2021-11-02 23:01:04,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:04,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083291819] [2021-11-02 23:01:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:04,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:04,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2702 backedges. 0 proven. 2702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:04,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:04,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083291819] [2021-11-02 23:01:04,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083291819] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:04,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451642836] [2021-11-02 23:01:04,911 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:01:04,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:04,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:04,918 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:04,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-11-02 23:01:06,768 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:01:06,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:06,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-02 23:01:06,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:07,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2702 backedges. 0 proven. 2702 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:07,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451642836] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:07,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:07,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-11-02 23:01:07,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216504639] [2021-11-02 23:01:07,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-02 23:01:07,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:07,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-02 23:01:07,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-02 23:01:07,335 INFO L87 Difference]: Start difference. First operand 204 states and 204 transitions. Second operand has 31 states, 30 states have (on average 6.633333333333334) internal successors, (199), 30 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:07,400 INFO L93 Difference]: Finished difference Result 210 states and 210 transitions. [2021-11-02 23:01:07,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-02 23:01:07,401 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 6.633333333333334) internal successors, (199), 30 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 199 [2021-11-02 23:01:07,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:07,402 INFO L225 Difference]: With dead ends: 210 [2021-11-02 23:01:07,402 INFO L226 Difference]: Without dead ends: 209 [2021-11-02 23:01:07,402 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-02 23:01:07,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2021-11-02 23:01:07,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 208. [2021-11-02 23:01:07,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 206 states have (on average 1.0097087378640777) internal successors, (208), 207 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 208 transitions. [2021-11-02 23:01:07,406 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 208 transitions. Word has length 199 [2021-11-02 23:01:07,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:07,407 INFO L470 AbstractCegarLoop]: Abstraction has 208 states and 208 transitions. [2021-11-02 23:01:07,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 6.633333333333334) internal successors, (199), 30 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:07,407 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 208 transitions. [2021-11-02 23:01:07,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-02 23:01:07,408 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:07,408 INFO L513 BasicCegarLoop]: trace histogram [29, 29, 29, 29, 28, 28, 28, 1, 1] [2021-11-02 23:01:07,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Ended with exit code 0 [2021-11-02 23:01:07,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:07,609 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:07,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:07,609 INFO L85 PathProgramCache]: Analyzing trace with hash -486722067, now seen corresponding path program 28 times [2021-11-02 23:01:07,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:07,609 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780416964] [2021-11-02 23:01:07,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:07,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:08,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 0 proven. 2786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:08,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:08,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780416964] [2021-11-02 23:01:08,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780416964] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:08,126 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510846378] [2021-11-02 23:01:08,126 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:01:08,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:08,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:08,127 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:08,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-11-02 23:01:09,945 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:01:09,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:09,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-02 23:01:09,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:10,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2786 backedges. 0 proven. 2786 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:10,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510846378] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:10,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:10,476 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-11-02 23:01:10,476 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319924674] [2021-11-02 23:01:10,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-02 23:01:10,477 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:10,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-02 23:01:10,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-02 23:01:10,478 INFO L87 Difference]: Start difference. First operand 208 states and 208 transitions. Second operand has 31 states, 30 states have (on average 6.733333333333333) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:10,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:10,579 INFO L93 Difference]: Finished difference Result 212 states and 212 transitions. [2021-11-02 23:01:10,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-02 23:01:10,580 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 6.733333333333333) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 202 [2021-11-02 23:01:10,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:10,581 INFO L225 Difference]: With dead ends: 212 [2021-11-02 23:01:10,582 INFO L226 Difference]: Without dead ends: 211 [2021-11-02 23:01:10,582 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-11-02 23:01:10,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-11-02 23:01:10,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-11-02 23:01:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 209 states have (on average 1.0095693779904307) internal successors, (211), 210 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:10,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 211 transitions. [2021-11-02 23:01:10,622 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 211 transitions. Word has length 202 [2021-11-02 23:01:10,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:10,622 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 211 transitions. [2021-11-02 23:01:10,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 6.733333333333333) internal successors, (202), 30 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:10,623 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 211 transitions. [2021-11-02 23:01:10,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-02 23:01:10,624 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:10,624 INFO L513 BasicCegarLoop]: trace histogram [30, 29, 29, 29, 29, 29, 29, 1, 1] [2021-11-02 23:01:10,670 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:10,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:10,825 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:10,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:10,825 INFO L85 PathProgramCache]: Analyzing trace with hash 343800369, now seen corresponding path program 29 times [2021-11-02 23:01:10,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:10,826 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499489956] [2021-11-02 23:01:10,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:10,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2900 backedges. 0 proven. 2900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:11,372 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:11,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499489956] [2021-11-02 23:01:11,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499489956] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:11,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2106179572] [2021-11-02 23:01:11,373 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:01:11,373 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:11,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:11,374 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:11,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-02 23:01:13,296 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-11-02 23:01:13,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:13,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-02 23:01:13,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 2900 backedges. 0 proven. 2900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:13,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2106179572] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:13,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:13,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-11-02 23:01:13,981 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75599423] [2021-11-02 23:01:13,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-02 23:01:13,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:13,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-02 23:01:13,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:01:13,982 INFO L87 Difference]: Start difference. First operand 211 states and 211 transitions. Second operand has 32 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:14,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:14,084 INFO L93 Difference]: Finished difference Result 217 states and 217 transitions. [2021-11-02 23:01:14,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:01:14,085 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2021-11-02 23:01:14,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:14,087 INFO L225 Difference]: With dead ends: 217 [2021-11-02 23:01:14,087 INFO L226 Difference]: Without dead ends: 216 [2021-11-02 23:01:14,088 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:01:14,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-02 23:01:14,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2021-11-02 23:01:14,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 213 states have (on average 1.0093896713615023) internal successors, (215), 214 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:14,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 215 transitions. [2021-11-02 23:01:14,095 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 215 transitions. Word has length 206 [2021-11-02 23:01:14,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:14,095 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 215 transitions. [2021-11-02 23:01:14,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.645161290322581) internal successors, (206), 31 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:14,096 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 215 transitions. [2021-11-02 23:01:14,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-02 23:01:14,097 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:14,097 INFO L513 BasicCegarLoop]: trace histogram [30, 30, 30, 30, 29, 29, 29, 1, 1] [2021-11-02 23:01:14,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:14,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-11-02 23:01:14,312 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:14,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:14,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1340164323, now seen corresponding path program 29 times [2021-11-02 23:01:14,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:14,312 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300090239] [2021-11-02 23:01:14,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:14,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:14,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:14,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2987 backedges. 0 proven. 2987 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:14,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:14,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300090239] [2021-11-02 23:01:14,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300090239] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:14,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788596320] [2021-11-02 23:01:14,817 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:01:14,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:14,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:14,818 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:14,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-11-02 23:01:16,929 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-11-02 23:01:16,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:16,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 31 conjunts are in the unsatisfiable core [2021-11-02 23:01:16,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2987 backedges. 0 proven. 2987 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:17,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788596320] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:17,516 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:17,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-11-02 23:01:17,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389049525] [2021-11-02 23:01:17,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-11-02 23:01:17,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:17,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-11-02 23:01:17,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:01:17,518 INFO L87 Difference]: Start difference. First operand 215 states and 215 transitions. Second operand has 32 states, 31 states have (on average 6.741935483870968) internal successors, (209), 31 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:17,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:17,598 INFO L93 Difference]: Finished difference Result 219 states and 219 transitions. [2021-11-02 23:01:17,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-11-02 23:01:17,599 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.741935483870968) internal successors, (209), 31 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2021-11-02 23:01:17,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:17,601 INFO L225 Difference]: With dead ends: 219 [2021-11-02 23:01:17,601 INFO L226 Difference]: Without dead ends: 218 [2021-11-02 23:01:17,602 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-11-02 23:01:17,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2021-11-02 23:01:17,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2021-11-02 23:01:17,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 216 states have (on average 1.0092592592592593) internal successors, (218), 217 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:17,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 218 transitions. [2021-11-02 23:01:17,610 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 218 transitions. Word has length 209 [2021-11-02 23:01:17,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:17,611 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 218 transitions. [2021-11-02 23:01:17,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.741935483870968) internal successors, (209), 31 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:17,611 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 218 transitions. [2021-11-02 23:01:17,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2021-11-02 23:01:17,613 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:17,613 INFO L513 BasicCegarLoop]: trace histogram [31, 30, 30, 30, 30, 30, 30, 1, 1] [2021-11-02 23:01:17,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-11-02 23:01:17,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable63 [2021-11-02 23:01:17,828 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:17,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:17,828 INFO L85 PathProgramCache]: Analyzing trace with hash -2053414047, now seen corresponding path program 30 times [2021-11-02 23:01:17,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:17,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674008108] [2021-11-02 23:01:17,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:17,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:17,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 0 proven. 3105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:18,348 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:18,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674008108] [2021-11-02 23:01:18,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674008108] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:18,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026362114] [2021-11-02 23:01:18,348 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:01:18,349 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:18,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:18,349 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:18,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-11-02 23:01:20,447 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-11-02 23:01:20,448 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:20,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-02 23:01:20,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:21,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 0 proven. 3105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:21,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026362114] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:21,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:21,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-11-02 23:01:21,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087078140] [2021-11-02 23:01:21,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-02 23:01:21,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:21,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-02 23:01:21,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-02 23:01:21,120 INFO L87 Difference]: Start difference. First operand 218 states and 218 transitions. Second operand has 33 states, 32 states have (on average 6.65625) internal successors, (213), 32 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:21,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:21,212 INFO L93 Difference]: Finished difference Result 224 states and 224 transitions. [2021-11-02 23:01:21,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-02 23:01:21,213 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 6.65625) internal successors, (213), 32 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 213 [2021-11-02 23:01:21,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:21,215 INFO L225 Difference]: With dead ends: 224 [2021-11-02 23:01:21,215 INFO L226 Difference]: Without dead ends: 223 [2021-11-02 23:01:21,216 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-02 23:01:21,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2021-11-02 23:01:21,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 222. [2021-11-02 23:01:21,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 220 states have (on average 1.009090909090909) internal successors, (222), 221 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:21,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 222 transitions. [2021-11-02 23:01:21,223 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 222 transitions. Word has length 213 [2021-11-02 23:01:21,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:21,224 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 222 transitions. [2021-11-02 23:01:21,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 6.65625) internal successors, (213), 32 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:21,224 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 222 transitions. [2021-11-02 23:01:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-11-02 23:01:21,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:21,226 INFO L513 BasicCegarLoop]: trace histogram [31, 31, 31, 31, 30, 30, 30, 1, 1] [2021-11-02 23:01:21,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:21,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:21,452 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:21,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:21,452 INFO L85 PathProgramCache]: Analyzing trace with hash -38633491, now seen corresponding path program 30 times [2021-11-02 23:01:21,452 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:21,452 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196078399] [2021-11-02 23:01:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:21,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:21,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:21,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3195 backedges. 0 proven. 3195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:21,903 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:21,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196078399] [2021-11-02 23:01:21,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196078399] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:21,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [473751415] [2021-11-02 23:01:21,903 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:01:21,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:21,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:21,906 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:21,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-11-02 23:01:23,922 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-11-02 23:01:23,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:23,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 407 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-02 23:01:23,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:24,490 INFO L134 CoverageAnalysis]: Checked inductivity of 3195 backedges. 0 proven. 3195 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:24,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [473751415] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:24,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:24,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-11-02 23:01:24,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885446627] [2021-11-02 23:01:24,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-02 23:01:24,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:24,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-02 23:01:24,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-02 23:01:24,492 INFO L87 Difference]: Start difference. First operand 222 states and 222 transitions. Second operand has 33 states, 32 states have (on average 6.75) internal successors, (216), 32 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:24,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:24,555 INFO L93 Difference]: Finished difference Result 226 states and 226 transitions. [2021-11-02 23:01:24,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-02 23:01:24,556 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 6.75) internal successors, (216), 32 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 216 [2021-11-02 23:01:24,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:24,557 INFO L225 Difference]: With dead ends: 226 [2021-11-02 23:01:24,557 INFO L226 Difference]: Without dead ends: 225 [2021-11-02 23:01:24,557 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-11-02 23:01:24,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-02 23:01:24,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-02 23:01:24,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 223 states have (on average 1.0089686098654709) internal successors, (225), 224 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:24,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 225 transitions. [2021-11-02 23:01:24,562 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 225 transitions. Word has length 216 [2021-11-02 23:01:24,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:24,562 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 225 transitions. [2021-11-02 23:01:24,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 6.75) internal successors, (216), 32 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:24,563 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 225 transitions. [2021-11-02 23:01:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-11-02 23:01:24,564 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:24,564 INFO L513 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 31, 31, 1, 1] [2021-11-02 23:01:24,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:24,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-11-02 23:01:24,792 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:24,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:24,792 INFO L85 PathProgramCache]: Analyzing trace with hash -545373135, now seen corresponding path program 31 times [2021-11-02 23:01:24,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:24,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555705032] [2021-11-02 23:01:24,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:24,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:24,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:25,282 INFO L134 CoverageAnalysis]: Checked inductivity of 3317 backedges. 0 proven. 3317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:25,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:25,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555705032] [2021-11-02 23:01:25,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555705032] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:25,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38814995] [2021-11-02 23:01:25,283 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:01:25,284 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:25,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:25,285 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:25,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-11-02 23:01:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:27,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-02 23:01:27,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:27,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3317 backedges. 0 proven. 3317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:27,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38814995] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:27,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:27,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-11-02 23:01:27,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794219412] [2021-11-02 23:01:27,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-02 23:01:27,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:27,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-02 23:01:27,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:01:27,875 INFO L87 Difference]: Start difference. First operand 225 states and 225 transitions. Second operand has 34 states, 33 states have (on average 6.666666666666667) internal successors, (220), 33 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:27,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:27,968 INFO L93 Difference]: Finished difference Result 231 states and 231 transitions. [2021-11-02 23:01:27,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-02 23:01:27,970 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.666666666666667) internal successors, (220), 33 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2021-11-02 23:01:27,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:27,971 INFO L225 Difference]: With dead ends: 231 [2021-11-02 23:01:27,971 INFO L226 Difference]: Without dead ends: 230 [2021-11-02 23:01:27,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:01:27,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-02 23:01:27,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2021-11-02 23:01:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 227 states have (on average 1.0088105726872247) internal successors, (229), 228 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 229 transitions. [2021-11-02 23:01:27,979 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 229 transitions. Word has length 220 [2021-11-02 23:01:27,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:27,979 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 229 transitions. [2021-11-02 23:01:27,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.666666666666667) internal successors, (220), 33 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:27,980 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 229 transitions. [2021-11-02 23:01:27,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-11-02 23:01:27,982 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:27,982 INFO L513 BasicCegarLoop]: trace histogram [32, 32, 32, 32, 31, 31, 31, 1, 1] [2021-11-02 23:01:28,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:28,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-11-02 23:01:28,204 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:28,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:28,204 INFO L85 PathProgramCache]: Analyzing trace with hash 650259741, now seen corresponding path program 31 times [2021-11-02 23:01:28,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:28,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023888079] [2021-11-02 23:01:28,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:28,205 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:28,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 0 proven. 3410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:28,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:28,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023888079] [2021-11-02 23:01:28,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023888079] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:28,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279753621] [2021-11-02 23:01:28,820 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:01:28,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:28,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:28,821 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:28,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-11-02 23:01:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:31,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-02 23:01:31,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:31,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3410 backedges. 0 proven. 3410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:31,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279753621] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:31,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:31,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-11-02 23:01:31,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398760444] [2021-11-02 23:01:31,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-11-02 23:01:31,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:31,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-11-02 23:01:31,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:01:31,748 INFO L87 Difference]: Start difference. First operand 229 states and 229 transitions. Second operand has 34 states, 33 states have (on average 6.757575757575758) internal successors, (223), 33 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:31,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:31,828 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2021-11-02 23:01:31,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-02 23:01:31,828 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 6.757575757575758) internal successors, (223), 33 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2021-11-02 23:01:31,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:31,829 INFO L225 Difference]: With dead ends: 233 [2021-11-02 23:01:31,829 INFO L226 Difference]: Without dead ends: 232 [2021-11-02 23:01:31,830 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-11-02 23:01:31,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-02 23:01:31,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 232. [2021-11-02 23:01:31,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232 states, 230 states have (on average 1.008695652173913) internal successors, (232), 231 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:31,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 232 transitions. [2021-11-02 23:01:31,839 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 232 transitions. Word has length 223 [2021-11-02 23:01:31,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:31,839 INFO L470 AbstractCegarLoop]: Abstraction has 232 states and 232 transitions. [2021-11-02 23:01:31,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 6.757575757575758) internal successors, (223), 33 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:31,840 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 232 transitions. [2021-11-02 23:01:31,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-02 23:01:31,841 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:31,841 INFO L513 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 32, 32, 1, 1] [2021-11-02 23:01:31,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:32,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:32,068 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:32,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:32,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1905514849, now seen corresponding path program 32 times [2021-11-02 23:01:32,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:32,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249688408] [2021-11-02 23:01:32,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:32,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:32,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3536 backedges. 0 proven. 3536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:32,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:32,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249688408] [2021-11-02 23:01:32,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249688408] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:32,548 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77991547] [2021-11-02 23:01:32,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:01:32,548 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:32,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:32,549 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:32,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-11-02 23:01:34,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:01:34,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:34,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 428 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-02 23:01:34,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:35,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3536 backedges. 0 proven. 3536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:35,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77991547] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:35,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:35,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-11-02 23:01:35,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446424112] [2021-11-02 23:01:35,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-02 23:01:35,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:35,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-02 23:01:35,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-02 23:01:35,337 INFO L87 Difference]: Start difference. First operand 232 states and 232 transitions. Second operand has 35 states, 34 states have (on average 6.676470588235294) internal successors, (227), 34 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:35,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:35,405 INFO L93 Difference]: Finished difference Result 238 states and 238 transitions. [2021-11-02 23:01:35,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-02 23:01:35,406 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.676470588235294) internal successors, (227), 34 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 227 [2021-11-02 23:01:35,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:35,407 INFO L225 Difference]: With dead ends: 238 [2021-11-02 23:01:35,408 INFO L226 Difference]: Without dead ends: 237 [2021-11-02 23:01:35,408 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-02 23:01:35,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-02 23:01:35,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-11-02 23:01:35,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 234 states have (on average 1.0085470085470085) internal successors, (236), 235 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:35,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-11-02 23:01:35,414 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 227 [2021-11-02 23:01:35,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:35,415 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-11-02 23:01:35,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.676470588235294) internal successors, (227), 34 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-11-02 23:01:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-11-02 23:01:35,416 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:35,417 INFO L513 BasicCegarLoop]: trace histogram [33, 33, 33, 33, 32, 32, 32, 1, 1] [2021-11-02 23:01:35,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:35,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-11-02 23:01:35,642 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:35,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:35,642 INFO L85 PathProgramCache]: Analyzing trace with hash 610159085, now seen corresponding path program 32 times [2021-11-02 23:01:35,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:35,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14071736] [2021-11-02 23:01:35,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:35,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:35,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:36,265 INFO L134 CoverageAnalysis]: Checked inductivity of 3632 backedges. 0 proven. 3632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:36,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:36,265 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14071736] [2021-11-02 23:01:36,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14071736] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:36,266 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782723287] [2021-11-02 23:01:36,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:01:36,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:36,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:36,267 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:36,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-11-02 23:01:38,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:01:38,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:38,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-02 23:01:38,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:39,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3632 backedges. 0 proven. 3632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:39,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782723287] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:39,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:39,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-11-02 23:01:39,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620146505] [2021-11-02 23:01:39,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-02 23:01:39,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:39,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-02 23:01:39,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-02 23:01:39,249 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand has 35 states, 34 states have (on average 6.764705882352941) internal successors, (230), 34 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:39,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:39,346 INFO L93 Difference]: Finished difference Result 240 states and 240 transitions. [2021-11-02 23:01:39,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-02 23:01:39,346 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 6.764705882352941) internal successors, (230), 34 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-11-02 23:01:39,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:39,348 INFO L225 Difference]: With dead ends: 240 [2021-11-02 23:01:39,348 INFO L226 Difference]: Without dead ends: 239 [2021-11-02 23:01:39,349 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-11-02 23:01:39,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-11-02 23:01:39,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 239. [2021-11-02 23:01:39,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 237 states have (on average 1.0084388185654007) internal successors, (239), 238 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:39,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 239 transitions. [2021-11-02 23:01:39,355 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 239 transitions. Word has length 230 [2021-11-02 23:01:39,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:39,355 INFO L470 AbstractCegarLoop]: Abstraction has 239 states and 239 transitions. [2021-11-02 23:01:39,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 6.764705882352941) internal successors, (230), 34 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 239 transitions. [2021-11-02 23:01:39,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-02 23:01:39,357 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:39,357 INFO L513 BasicCegarLoop]: trace histogram [34, 33, 33, 33, 33, 33, 33, 1, 1] [2021-11-02 23:01:39,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:39,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69,65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:39,572 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:39,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:39,572 INFO L85 PathProgramCache]: Analyzing trace with hash -684388815, now seen corresponding path program 33 times [2021-11-02 23:01:39,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:39,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858194816] [2021-11-02 23:01:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:39,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:40,160 INFO L134 CoverageAnalysis]: Checked inductivity of 3762 backedges. 0 proven. 3762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:40,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:40,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858194816] [2021-11-02 23:01:40,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858194816] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:40,161 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679667214] [2021-11-02 23:01:40,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:01:40,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:40,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:40,167 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:40,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-02 23:01:42,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-11-02 23:01:42,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:42,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-02 23:01:42,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3762 backedges. 0 proven. 3762 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:43,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679667214] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:43,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:43,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-11-02 23:01:43,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439385902] [2021-11-02 23:01:43,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-02 23:01:43,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:43,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-02 23:01:43,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-02 23:01:43,071 INFO L87 Difference]: Start difference. First operand 239 states and 239 transitions. Second operand has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:43,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:43,163 INFO L93 Difference]: Finished difference Result 245 states and 245 transitions. [2021-11-02 23:01:43,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-02 23:01:43,164 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 234 [2021-11-02 23:01:43,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:43,165 INFO L225 Difference]: With dead ends: 245 [2021-11-02 23:01:43,165 INFO L226 Difference]: Without dead ends: 244 [2021-11-02 23:01:43,165 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-02 23:01:43,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-11-02 23:01:43,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 243. [2021-11-02 23:01:43,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 241 states have (on average 1.008298755186722) internal successors, (243), 242 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:43,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 243 transitions. [2021-11-02 23:01:43,169 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 243 transitions. Word has length 234 [2021-11-02 23:01:43,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:43,169 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 243 transitions. [2021-11-02 23:01:43,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.685714285714286) internal successors, (234), 35 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:43,170 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 243 transitions. [2021-11-02 23:01:43,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-02 23:01:43,171 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:43,171 INFO L513 BasicCegarLoop]: trace histogram [34, 34, 34, 34, 33, 33, 33, 1, 1] [2021-11-02 23:01:43,209 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-11-02 23:01:43,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:43,400 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:43,400 INFO L85 PathProgramCache]: Analyzing trace with hash -417389795, now seen corresponding path program 33 times [2021-11-02 23:01:43,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:43,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48950278] [2021-11-02 23:01:43,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:43,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:43,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3861 backedges. 0 proven. 3861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:43,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:43,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48950278] [2021-11-02 23:01:43,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48950278] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:43,949 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1293135950] [2021-11-02 23:01:43,949 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:01:43,949 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:43,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:43,950 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:43,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-11-02 23:01:46,437 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-11-02 23:01:46,437 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:46,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 35 conjunts are in the unsatisfiable core [2021-11-02 23:01:46,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3861 backedges. 0 proven. 3861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:47,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1293135950] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:47,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:47,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-11-02 23:01:47,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478445598] [2021-11-02 23:01:47,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-02 23:01:47,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:47,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-02 23:01:47,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-02 23:01:47,098 INFO L87 Difference]: Start difference. First operand 243 states and 243 transitions. Second operand has 36 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:47,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:47,180 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2021-11-02 23:01:47,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-11-02 23:01:47,180 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2021-11-02 23:01:47,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:47,181 INFO L225 Difference]: With dead ends: 247 [2021-11-02 23:01:47,181 INFO L226 Difference]: Without dead ends: 246 [2021-11-02 23:01:47,182 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-11-02 23:01:47,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-02 23:01:47,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2021-11-02 23:01:47,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 244 states have (on average 1.0081967213114753) internal successors, (246), 245 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 246 transitions. [2021-11-02 23:01:47,189 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 246 transitions. Word has length 237 [2021-11-02 23:01:47,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:47,189 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 246 transitions. [2021-11-02 23:01:47,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 6.771428571428571) internal successors, (237), 35 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:47,190 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 246 transitions. [2021-11-02 23:01:47,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-02 23:01:47,192 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:47,192 INFO L513 BasicCegarLoop]: trace histogram [35, 34, 34, 34, 34, 34, 34, 1, 1] [2021-11-02 23:01:47,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:47,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:47,408 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:47,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:47,408 INFO L85 PathProgramCache]: Analyzing trace with hash 780521313, now seen corresponding path program 34 times [2021-11-02 23:01:47,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:47,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442335929] [2021-11-02 23:01:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:47,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:48,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3995 backedges. 0 proven. 3995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:48,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:48,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442335929] [2021-11-02 23:01:48,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442335929] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:48,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464370678] [2021-11-02 23:01:48,005 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:01:48,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:48,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:48,006 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:48,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-11-02 23:01:50,479 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:01:50,479 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:50,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-02 23:01:50,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 3995 backedges. 0 proven. 3995 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:51,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464370678] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:51,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:51,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-11-02 23:01:51,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212335101] [2021-11-02 23:01:51,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-02 23:01:51,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:51,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-02 23:01:51,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-02 23:01:51,045 INFO L87 Difference]: Start difference. First operand 246 states and 246 transitions. Second operand has 37 states, 36 states have (on average 6.694444444444445) internal successors, (241), 36 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:51,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:51,169 INFO L93 Difference]: Finished difference Result 252 states and 252 transitions. [2021-11-02 23:01:51,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-02 23:01:51,169 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.694444444444445) internal successors, (241), 36 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-11-02 23:01:51,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:51,171 INFO L225 Difference]: With dead ends: 252 [2021-11-02 23:01:51,171 INFO L226 Difference]: Without dead ends: 251 [2021-11-02 23:01:51,172 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-02 23:01:51,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-02 23:01:51,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 250. [2021-11-02 23:01:51,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 248 states have (on average 1.0080645161290323) internal successors, (250), 249 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:51,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 250 transitions. [2021-11-02 23:01:51,177 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 250 transitions. Word has length 241 [2021-11-02 23:01:51,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:51,178 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 250 transitions. [2021-11-02 23:01:51,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.694444444444445) internal successors, (241), 36 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:51,178 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 250 transitions. [2021-11-02 23:01:51,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-02 23:01:51,180 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:51,180 INFO L513 BasicCegarLoop]: trace histogram [35, 35, 35, 35, 34, 34, 34, 1, 1] [2021-11-02 23:01:51,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:51,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:51,408 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:51,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:51,408 INFO L85 PathProgramCache]: Analyzing trace with hash -442461203, now seen corresponding path program 34 times [2021-11-02 23:01:51,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:51,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213487623] [2021-11-02 23:01:51,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:51,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:52,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4097 backedges. 0 proven. 4097 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:52,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:52,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213487623] [2021-11-02 23:01:52,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213487623] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:52,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269535935] [2021-11-02 23:01:52,116 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:01:52,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:52,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:52,117 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:52,131 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-11-02 23:01:54,705 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:01:54,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:54,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-02 23:01:54,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:55,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4097 backedges. 0 proven. 4097 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:55,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269535935] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:55,333 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:55,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-11-02 23:01:55,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697998312] [2021-11-02 23:01:55,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-02 23:01:55,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:55,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-02 23:01:55,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-02 23:01:55,335 INFO L87 Difference]: Start difference. First operand 250 states and 250 transitions. Second operand has 37 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:55,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:55,412 INFO L93 Difference]: Finished difference Result 254 states and 254 transitions. [2021-11-02 23:01:55,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-02 23:01:55,412 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 244 [2021-11-02 23:01:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:55,413 INFO L225 Difference]: With dead ends: 254 [2021-11-02 23:01:55,413 INFO L226 Difference]: Without dead ends: 253 [2021-11-02 23:01:55,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-11-02 23:01:55,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-11-02 23:01:55,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2021-11-02 23:01:55,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 251 states have (on average 1.0079681274900398) internal successors, (253), 252 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:55,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 253 transitions. [2021-11-02 23:01:55,418 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 253 transitions. Word has length 244 [2021-11-02 23:01:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:55,419 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 253 transitions. [2021-11-02 23:01:55,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 6.777777777777778) internal successors, (244), 36 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:55,419 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 253 transitions. [2021-11-02 23:01:55,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-02 23:01:55,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:55,421 INFO L513 BasicCegarLoop]: trace histogram [36, 35, 35, 35, 35, 35, 35, 1, 1] [2021-11-02 23:01:55,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-11-02 23:01:55,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:55,636 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:55,636 INFO L85 PathProgramCache]: Analyzing trace with hash 977426481, now seen corresponding path program 35 times [2021-11-02 23:01:55,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:55,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037888130] [2021-11-02 23:01:55,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:55,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:01:56,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4235 backedges. 0 proven. 4235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:56,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:01:56,187 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037888130] [2021-11-02 23:01:56,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037888130] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:56,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086819855] [2021-11-02 23:01:56,188 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:01:56,188 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:56,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:01:56,189 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:01:56,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-11-02 23:01:58,871 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-11-02 23:01:58,871 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:01:58,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-02 23:01:58,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:01:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 4235 backedges. 0 proven. 4235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:01:59,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086819855] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:01:59,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:01:59,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-11-02 23:01:59,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30148659] [2021-11-02 23:01:59,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-02 23:01:59,512 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:01:59,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-02 23:01:59,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-02 23:01:59,512 INFO L87 Difference]: Start difference. First operand 253 states and 253 transitions. Second operand has 38 states, 37 states have (on average 6.702702702702703) internal successors, (248), 37 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:59,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:01:59,595 INFO L93 Difference]: Finished difference Result 259 states and 259 transitions. [2021-11-02 23:01:59,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-02 23:01:59,595 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.702702702702703) internal successors, (248), 37 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2021-11-02 23:01:59,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:01:59,596 INFO L225 Difference]: With dead ends: 259 [2021-11-02 23:01:59,596 INFO L226 Difference]: Without dead ends: 258 [2021-11-02 23:01:59,597 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-02 23:01:59,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-11-02 23:01:59,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 257. [2021-11-02 23:01:59,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 255 states have (on average 1.007843137254902) internal successors, (257), 256 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 257 transitions. [2021-11-02 23:01:59,605 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 257 transitions. Word has length 248 [2021-11-02 23:01:59,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:01:59,605 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 257 transitions. [2021-11-02 23:01:59,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.702702702702703) internal successors, (248), 37 states have internal predecessors, (248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:01:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 257 transitions. [2021-11-02 23:01:59,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-11-02 23:01:59,607 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:01:59,608 INFO L513 BasicCegarLoop]: trace histogram [36, 36, 36, 36, 35, 35, 35, 1, 1] [2021-11-02 23:01:59,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Ended with exit code 0 [2021-11-02 23:01:59,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:01:59,812 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:01:59,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:01:59,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1365927651, now seen corresponding path program 35 times [2021-11-02 23:01:59,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:01:59,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901534004] [2021-11-02 23:01:59,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:01:59,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:01:59,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:00,422 INFO L134 CoverageAnalysis]: Checked inductivity of 4340 backedges. 0 proven. 4340 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:00,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:00,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901534004] [2021-11-02 23:02:00,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901534004] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:00,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099985451] [2021-11-02 23:02:00,422 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:02:00,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:00,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:00,423 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:00,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-11-02 23:02:03,180 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-11-02 23:02:03,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:03,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 37 conjunts are in the unsatisfiable core [2021-11-02 23:02:03,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:03,780 INFO L134 CoverageAnalysis]: Checked inductivity of 4340 backedges. 0 proven. 4340 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:03,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099985451] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:03,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:03,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-11-02 23:02:03,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137526408] [2021-11-02 23:02:03,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-11-02 23:02:03,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:03,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-11-02 23:02:03,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-02 23:02:03,782 INFO L87 Difference]: Start difference. First operand 257 states and 257 transitions. Second operand has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 37 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:03,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:03,858 INFO L93 Difference]: Finished difference Result 261 states and 261 transitions. [2021-11-02 23:02:03,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-02 23:02:03,859 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 37 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2021-11-02 23:02:03,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:03,860 INFO L225 Difference]: With dead ends: 261 [2021-11-02 23:02:03,860 INFO L226 Difference]: Without dead ends: 260 [2021-11-02 23:02:03,860 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-11-02 23:02:03,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2021-11-02 23:02:03,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-11-02 23:02:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 258 states have (on average 1.0077519379844961) internal successors, (260), 259 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:03,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 260 transitions. [2021-11-02 23:02:03,866 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 260 transitions. Word has length 251 [2021-11-02 23:02:03,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:03,866 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 260 transitions. [2021-11-02 23:02:03,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 6.783783783783784) internal successors, (251), 37 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:03,867 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 260 transitions. [2021-11-02 23:02:03,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-02 23:02:03,868 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:03,868 INFO L513 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 36, 36, 1, 1] [2021-11-02 23:02:03,908 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Ended with exit code 0 [2021-11-02 23:02:04,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-11-02 23:02:04,093 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:04,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:04,093 INFO L85 PathProgramCache]: Analyzing trace with hash -909032095, now seen corresponding path program 36 times [2021-11-02 23:02:04,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:04,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236624953] [2021-11-02 23:02:04,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:04,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:04,656 INFO L134 CoverageAnalysis]: Checked inductivity of 4482 backedges. 0 proven. 4482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:04,656 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:04,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236624953] [2021-11-02 23:02:04,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236624953] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:04,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399095654] [2021-11-02 23:02:04,657 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:02:04,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:04,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:04,657 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:04,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-11-02 23:02:07,494 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-11-02 23:02:07,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:07,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-02 23:02:07,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:08,089 INFO L134 CoverageAnalysis]: Checked inductivity of 4482 backedges. 0 proven. 4482 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:08,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399095654] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:08,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:08,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-11-02 23:02:08,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819325279] [2021-11-02 23:02:08,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-02 23:02:08,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:08,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-02 23:02:08,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-02 23:02:08,090 INFO L87 Difference]: Start difference. First operand 260 states and 260 transitions. Second operand has 39 states, 38 states have (on average 6.7105263157894735) internal successors, (255), 38 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:08,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:08,171 INFO L93 Difference]: Finished difference Result 266 states and 266 transitions. [2021-11-02 23:02:08,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-02 23:02:08,172 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 6.7105263157894735) internal successors, (255), 38 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-11-02 23:02:08,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:08,173 INFO L225 Difference]: With dead ends: 266 [2021-11-02 23:02:08,173 INFO L226 Difference]: Without dead ends: 265 [2021-11-02 23:02:08,173 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-02 23:02:08,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2021-11-02 23:02:08,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 264. [2021-11-02 23:02:08,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 262 states have (on average 1.0076335877862594) internal successors, (264), 263 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:08,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 264 transitions. [2021-11-02 23:02:08,177 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 264 transitions. Word has length 255 [2021-11-02 23:02:08,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:08,177 INFO L470 AbstractCegarLoop]: Abstraction has 264 states and 264 transitions. [2021-11-02 23:02:08,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 6.7105263157894735) internal successors, (255), 38 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:08,178 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 264 transitions. [2021-11-02 23:02:08,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-02 23:02:08,179 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:08,179 INFO L513 BasicCegarLoop]: trace histogram [37, 37, 37, 37, 36, 36, 36, 1, 1] [2021-11-02 23:02:08,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2021-11-02 23:02:08,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:08,388 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:08,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:08,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1206297107, now seen corresponding path program 36 times [2021-11-02 23:02:08,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:08,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603617457] [2021-11-02 23:02:08,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:08,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:09,100 INFO L134 CoverageAnalysis]: Checked inductivity of 4590 backedges. 0 proven. 4590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:09,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:09,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603617457] [2021-11-02 23:02:09,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603617457] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:09,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348943947] [2021-11-02 23:02:09,100 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:02:09,100 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:09,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:09,101 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:09,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-11-02 23:02:11,944 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-11-02 23:02:11,944 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:11,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-02 23:02:11,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:12,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4590 backedges. 0 proven. 4590 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:12,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348943947] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:12,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:12,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-11-02 23:02:12,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670435794] [2021-11-02 23:02:12,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-02 23:02:12,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:12,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-02 23:02:12,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-02 23:02:12,578 INFO L87 Difference]: Start difference. First operand 264 states and 264 transitions. Second operand has 39 states, 38 states have (on average 6.7894736842105265) internal successors, (258), 38 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:12,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:12,656 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2021-11-02 23:02:12,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-02 23:02:12,656 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 6.7894736842105265) internal successors, (258), 38 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2021-11-02 23:02:12,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:12,657 INFO L225 Difference]: With dead ends: 268 [2021-11-02 23:02:12,657 INFO L226 Difference]: Without dead ends: 267 [2021-11-02 23:02:12,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-11-02 23:02:12,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-11-02 23:02:12,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2021-11-02 23:02:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 265 states have (on average 1.0075471698113208) internal successors, (267), 266 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 267 transitions. [2021-11-02 23:02:12,662 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 267 transitions. Word has length 258 [2021-11-02 23:02:12,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:12,662 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 267 transitions. [2021-11-02 23:02:12,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 6.7894736842105265) internal successors, (258), 38 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:12,663 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 267 transitions. [2021-11-02 23:02:12,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-02 23:02:12,664 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:12,664 INFO L513 BasicCegarLoop]: trace histogram [38, 37, 37, 37, 37, 37, 37, 1, 1] [2021-11-02 23:02:12,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-11-02 23:02:12,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:12,872 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:12,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:12,872 INFO L85 PathProgramCache]: Analyzing trace with hash 793125425, now seen corresponding path program 37 times [2021-11-02 23:02:12,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:12,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124642135] [2021-11-02 23:02:12,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:12,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:12,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:13,551 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 0 proven. 4736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:13,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:13,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124642135] [2021-11-02 23:02:13,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124642135] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:13,552 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077927001] [2021-11-02 23:02:13,552 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:02:13,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:13,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:13,553 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:13,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-11-02 23:02:16,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:16,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-02 23:02:16,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 4736 backedges. 0 proven. 4736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:17,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077927001] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:17,262 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:17,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-11-02 23:02:17,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053578740] [2021-11-02 23:02:17,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-02 23:02:17,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:17,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-02 23:02:17,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:02:17,265 INFO L87 Difference]: Start difference. First operand 267 states and 267 transitions. Second operand has 40 states, 39 states have (on average 6.717948717948718) internal successors, (262), 39 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:17,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:17,372 INFO L93 Difference]: Finished difference Result 273 states and 273 transitions. [2021-11-02 23:02:17,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-02 23:02:17,373 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 6.717948717948718) internal successors, (262), 39 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 262 [2021-11-02 23:02:17,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:17,374 INFO L225 Difference]: With dead ends: 273 [2021-11-02 23:02:17,374 INFO L226 Difference]: Without dead ends: 272 [2021-11-02 23:02:17,374 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:02:17,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-11-02 23:02:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2021-11-02 23:02:17,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 269 states have (on average 1.0074349442379182) internal successors, (271), 270 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:17,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 271 transitions. [2021-11-02 23:02:17,379 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 271 transitions. Word has length 262 [2021-11-02 23:02:17,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:17,379 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 271 transitions. [2021-11-02 23:02:17,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 6.717948717948718) internal successors, (262), 39 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:17,380 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 271 transitions. [2021-11-02 23:02:17,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-02 23:02:17,381 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:17,381 INFO L513 BasicCegarLoop]: trace histogram [38, 38, 38, 38, 37, 37, 37, 1, 1] [2021-11-02 23:02:17,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2021-11-02 23:02:17,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-11-02 23:02:17,584 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1384484637, now seen corresponding path program 37 times [2021-11-02 23:02:17,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:17,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563700265] [2021-11-02 23:02:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:17,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:17,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 4847 backedges. 0 proven. 4847 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:18,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:18,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563700265] [2021-11-02 23:02:18,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563700265] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:18,230 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848554678] [2021-11-02 23:02:18,230 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:02:18,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:18,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:18,234 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:18,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-11-02 23:02:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:21,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 39 conjunts are in the unsatisfiable core [2021-11-02 23:02:21,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:21,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4847 backedges. 0 proven. 4847 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:21,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848554678] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:21,932 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:21,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-11-02 23:02:21,933 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752563713] [2021-11-02 23:02:21,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-11-02 23:02:21,933 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:21,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-11-02 23:02:21,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:02:21,934 INFO L87 Difference]: Start difference. First operand 271 states and 271 transitions. Second operand has 40 states, 39 states have (on average 6.794871794871795) internal successors, (265), 39 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:22,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:22,024 INFO L93 Difference]: Finished difference Result 275 states and 275 transitions. [2021-11-02 23:02:22,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-11-02 23:02:22,024 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 6.794871794871795) internal successors, (265), 39 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2021-11-02 23:02:22,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:22,026 INFO L225 Difference]: With dead ends: 275 [2021-11-02 23:02:22,026 INFO L226 Difference]: Without dead ends: 274 [2021-11-02 23:02:22,026 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-11-02 23:02:22,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-11-02 23:02:22,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2021-11-02 23:02:22,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 272 states have (on average 1.0073529411764706) internal successors, (274), 273 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 274 transitions. [2021-11-02 23:02:22,033 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 274 transitions. Word has length 265 [2021-11-02 23:02:22,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:22,034 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 274 transitions. [2021-11-02 23:02:22,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 6.794871794871795) internal successors, (265), 39 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 274 transitions. [2021-11-02 23:02:22,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2021-11-02 23:02:22,036 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:22,036 INFO L513 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 38, 38, 1, 1] [2021-11-02 23:02:22,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Forceful destruction successful, exit code 0 [2021-11-02 23:02:22,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-11-02 23:02:22,252 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:22,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1758870369, now seen corresponding path program 38 times [2021-11-02 23:02:22,252 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:22,252 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650030386] [2021-11-02 23:02:22,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:22,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4997 backedges. 0 proven. 4997 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:22,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:22,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650030386] [2021-11-02 23:02:22,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650030386] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:22,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1984485739] [2021-11-02 23:02:22,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:02:22,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:22,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:22,937 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:22,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-11-02 23:02:26,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:02:26,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:26,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-02 23:02:26,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:26,865 INFO L134 CoverageAnalysis]: Checked inductivity of 4997 backedges. 0 proven. 4997 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:26,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1984485739] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:26,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:26,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-11-02 23:02:26,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299336081] [2021-11-02 23:02:26,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-02 23:02:26,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:26,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-02 23:02:26,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-02 23:02:26,867 INFO L87 Difference]: Start difference. First operand 274 states and 274 transitions. Second operand has 41 states, 40 states have (on average 6.725) internal successors, (269), 40 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:26,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:26,954 INFO L93 Difference]: Finished difference Result 280 states and 280 transitions. [2021-11-02 23:02:26,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-02 23:02:26,954 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 6.725) internal successors, (269), 40 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 269 [2021-11-02 23:02:26,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:26,956 INFO L225 Difference]: With dead ends: 280 [2021-11-02 23:02:26,956 INFO L226 Difference]: Without dead ends: 279 [2021-11-02 23:02:26,956 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-02 23:02:26,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-11-02 23:02:26,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 278. [2021-11-02 23:02:26,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 276 states have (on average 1.0072463768115942) internal successors, (278), 277 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:26,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 278 transitions. [2021-11-02 23:02:26,960 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 278 transitions. Word has length 269 [2021-11-02 23:02:26,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:26,961 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 278 transitions. [2021-11-02 23:02:26,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 6.725) internal successors, (269), 40 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:26,961 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 278 transitions. [2021-11-02 23:02:26,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-02 23:02:26,962 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:26,962 INFO L513 BasicCegarLoop]: trace histogram [39, 39, 39, 39, 38, 38, 38, 1, 1] [2021-11-02 23:02:26,994 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2021-11-02 23:02:27,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:27,163 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:27,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:27,163 INFO L85 PathProgramCache]: Analyzing trace with hash -93804563, now seen corresponding path program 38 times [2021-11-02 23:02:27,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:27,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104319376] [2021-11-02 23:02:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:27,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:27,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5111 backedges. 0 proven. 5111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:27,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:27,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104319376] [2021-11-02 23:02:27,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104319376] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:27,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67979662] [2021-11-02 23:02:27,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:02:27,852 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:27,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:27,853 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:27,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-11-02 23:02:31,165 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:02:31,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:31,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-02 23:02:31,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 5111 backedges. 0 proven. 5111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:31,893 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67979662] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:31,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:31,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-11-02 23:02:31,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462195214] [2021-11-02 23:02:31,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-02 23:02:31,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:31,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-02 23:02:31,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-02 23:02:31,895 INFO L87 Difference]: Start difference. First operand 278 states and 278 transitions. Second operand has 41 states, 40 states have (on average 6.8) internal successors, (272), 40 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:31,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:31,988 INFO L93 Difference]: Finished difference Result 282 states and 282 transitions. [2021-11-02 23:02:31,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-02 23:02:31,989 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 6.8) internal successors, (272), 40 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 272 [2021-11-02 23:02:31,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:31,990 INFO L225 Difference]: With dead ends: 282 [2021-11-02 23:02:31,990 INFO L226 Difference]: Without dead ends: 281 [2021-11-02 23:02:31,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-11-02 23:02:31,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-11-02 23:02:31,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2021-11-02 23:02:31,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 279 states have (on average 1.007168458781362) internal successors, (281), 280 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:31,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 281 transitions. [2021-11-02 23:02:31,994 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 281 transitions. Word has length 272 [2021-11-02 23:02:31,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:31,995 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 281 transitions. [2021-11-02 23:02:31,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 6.8) internal successors, (272), 40 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:31,995 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 281 transitions. [2021-11-02 23:02:31,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2021-11-02 23:02:31,996 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:31,996 INFO L513 BasicCegarLoop]: trace histogram [40, 39, 39, 39, 39, 39, 39, 1, 1] [2021-11-02 23:02:32,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2021-11-02 23:02:32,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable81 [2021-11-02 23:02:32,197 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:32,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:32,197 INFO L85 PathProgramCache]: Analyzing trace with hash -991925199, now seen corresponding path program 39 times [2021-11-02 23:02:32,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:32,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698011764] [2021-11-02 23:02:32,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:32,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:32,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:32,896 INFO L134 CoverageAnalysis]: Checked inductivity of 5265 backedges. 0 proven. 5265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:32,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:32,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698011764] [2021-11-02 23:02:32,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698011764] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:32,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2076854111] [2021-11-02 23:02:32,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:02:32,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:32,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:32,904 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:32,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-11-02 23:02:36,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-11-02 23:02:36,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:36,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-02 23:02:36,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 5265 backedges. 0 proven. 5265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:37,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2076854111] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:37,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:37,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-11-02 23:02:37,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997784502] [2021-11-02 23:02:37,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-02 23:02:37,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:37,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-02 23:02:37,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-02 23:02:37,193 INFO L87 Difference]: Start difference. First operand 281 states and 281 transitions. Second operand has 42 states, 41 states have (on average 6.7317073170731705) internal successors, (276), 41 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:37,294 INFO L93 Difference]: Finished difference Result 287 states and 287 transitions. [2021-11-02 23:02:37,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-02 23:02:37,294 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 6.7317073170731705) internal successors, (276), 41 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 276 [2021-11-02 23:02:37,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:37,296 INFO L225 Difference]: With dead ends: 287 [2021-11-02 23:02:37,296 INFO L226 Difference]: Without dead ends: 286 [2021-11-02 23:02:37,296 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-02 23:02:37,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-02 23:02:37,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 285. [2021-11-02 23:02:37,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 283 states have (on average 1.0070671378091873) internal successors, (285), 284 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:37,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 285 transitions. [2021-11-02 23:02:37,302 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 285 transitions. Word has length 276 [2021-11-02 23:02:37,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:37,303 INFO L470 AbstractCegarLoop]: Abstraction has 285 states and 285 transitions. [2021-11-02 23:02:37,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 6.7317073170731705) internal successors, (276), 41 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:37,304 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 285 transitions. [2021-11-02 23:02:37,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-11-02 23:02:37,305 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:37,306 INFO L513 BasicCegarLoop]: trace histogram [40, 40, 40, 40, 39, 39, 39, 1, 1] [2021-11-02 23:02:37,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2021-11-02 23:02:37,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:37,532 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:37,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:37,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1068563171, now seen corresponding path program 39 times [2021-11-02 23:02:37,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:37,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275369693] [2021-11-02 23:02:37,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:37,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:38,272 INFO L134 CoverageAnalysis]: Checked inductivity of 5382 backedges. 0 proven. 5382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:38,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:38,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275369693] [2021-11-02 23:02:38,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275369693] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:38,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851293855] [2021-11-02 23:02:38,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:02:38,273 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:38,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:38,274 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:38,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-11-02 23:02:41,894 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-11-02 23:02:41,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:41,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 41 conjunts are in the unsatisfiable core [2021-11-02 23:02:41,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 5382 backedges. 0 proven. 5382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:42,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851293855] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:42,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:42,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-11-02 23:02:42,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380717928] [2021-11-02 23:02:42,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-11-02 23:02:42,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:42,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-11-02 23:02:42,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-02 23:02:42,640 INFO L87 Difference]: Start difference. First operand 285 states and 285 transitions. Second operand has 42 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:42,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:42,738 INFO L93 Difference]: Finished difference Result 289 states and 289 transitions. [2021-11-02 23:02:42,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-02 23:02:42,738 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 279 [2021-11-02 23:02:42,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:42,740 INFO L225 Difference]: With dead ends: 289 [2021-11-02 23:02:42,740 INFO L226 Difference]: Without dead ends: 288 [2021-11-02 23:02:42,740 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-11-02 23:02:42,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2021-11-02 23:02:42,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2021-11-02 23:02:42,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 286 states have (on average 1.006993006993007) internal successors, (288), 287 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:42,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 288 transitions. [2021-11-02 23:02:42,745 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 288 transitions. Word has length 279 [2021-11-02 23:02:42,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:42,746 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 288 transitions. [2021-11-02 23:02:42,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 6.804878048780488) internal successors, (279), 41 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:42,747 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 288 transitions. [2021-11-02 23:02:42,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2021-11-02 23:02:42,748 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:42,749 INFO L513 BasicCegarLoop]: trace histogram [41, 40, 40, 40, 40, 40, 40, 1, 1] [2021-11-02 23:02:42,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Forceful destruction successful, exit code 0 [2021-11-02 23:02:42,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,79 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:42,965 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1223995745, now seen corresponding path program 40 times [2021-11-02 23:02:42,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:42,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858454144] [2021-11-02 23:02:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:42,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:43,849 INFO L134 CoverageAnalysis]: Checked inductivity of 5540 backedges. 0 proven. 5540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:43,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:43,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858454144] [2021-11-02 23:02:43,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858454144] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:43,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684875763] [2021-11-02 23:02:43,849 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:02:43,849 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:43,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:43,851 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:43,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-11-02 23:02:47,571 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:02:47,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:47,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-02 23:02:47,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 5540 backedges. 0 proven. 5540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:48,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684875763] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:48,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:48,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-11-02 23:02:48,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428989781] [2021-11-02 23:02:48,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-02 23:02:48,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:48,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-02 23:02:48,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-02 23:02:48,339 INFO L87 Difference]: Start difference. First operand 288 states and 288 transitions. Second operand has 43 states, 42 states have (on average 6.738095238095238) internal successors, (283), 42 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:48,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:48,445 INFO L93 Difference]: Finished difference Result 294 states and 294 transitions. [2021-11-02 23:02:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-02 23:02:48,446 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 6.738095238095238) internal successors, (283), 42 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 283 [2021-11-02 23:02:48,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:48,447 INFO L225 Difference]: With dead ends: 294 [2021-11-02 23:02:48,447 INFO L226 Difference]: Without dead ends: 293 [2021-11-02 23:02:48,448 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-02 23:02:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-02 23:02:48,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 292. [2021-11-02 23:02:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 290 states have (on average 1.006896551724138) internal successors, (292), 291 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:48,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 292 transitions. [2021-11-02 23:02:48,453 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 292 transitions. Word has length 283 [2021-11-02 23:02:48,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:48,453 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 292 transitions. [2021-11-02 23:02:48,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 6.738095238095238) internal successors, (283), 42 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:48,454 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 292 transitions. [2021-11-02 23:02:48,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2021-11-02 23:02:48,455 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:48,456 INFO L513 BasicCegarLoop]: trace histogram [41, 41, 41, 41, 40, 40, 40, 1, 1] [2021-11-02 23:02:48,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Ended with exit code 0 [2021-11-02 23:02:48,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-11-02 23:02:48,656 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:48,656 INFO L85 PathProgramCache]: Analyzing trace with hash -215059987, now seen corresponding path program 40 times [2021-11-02 23:02:48,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:48,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735597918] [2021-11-02 23:02:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:48,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 5660 backedges. 0 proven. 5660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:49,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:49,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735597918] [2021-11-02 23:02:49,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735597918] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:49,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [973534061] [2021-11-02 23:02:49,551 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:02:49,551 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:49,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:49,552 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:49,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-11-02 23:02:53,290 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:02:53,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:53,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-02 23:02:53,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:02:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 5660 backedges. 0 proven. 5660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:54,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [973534061] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:54,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:02:54,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-11-02 23:02:54,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713221897] [2021-11-02 23:02:54,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-02 23:02:54,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:02:54,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-02 23:02:54,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-02 23:02:54,145 INFO L87 Difference]: Start difference. First operand 292 states and 292 transitions. Second operand has 43 states, 42 states have (on average 6.809523809523809) internal successors, (286), 42 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:54,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:02:54,257 INFO L93 Difference]: Finished difference Result 296 states and 296 transitions. [2021-11-02 23:02:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-02 23:02:54,258 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 6.809523809523809) internal successors, (286), 42 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 286 [2021-11-02 23:02:54,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:02:54,259 INFO L225 Difference]: With dead ends: 296 [2021-11-02 23:02:54,259 INFO L226 Difference]: Without dead ends: 295 [2021-11-02 23:02:54,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-11-02 23:02:54,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-02 23:02:54,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2021-11-02 23:02:54,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 293 states have (on average 1.006825938566553) internal successors, (295), 294 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:54,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 295 transitions. [2021-11-02 23:02:54,265 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 295 transitions. Word has length 286 [2021-11-02 23:02:54,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:02:54,266 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 295 transitions. [2021-11-02 23:02:54,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 6.809523809523809) internal successors, (286), 42 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:02:54,266 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 295 transitions. [2021-11-02 23:02:54,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-02 23:02:54,267 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:02:54,268 INFO L513 BasicCegarLoop]: trace histogram [42, 41, 41, 41, 41, 41, 41, 1, 1] [2021-11-02 23:02:54,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Forceful destruction successful, exit code 0 [2021-11-02 23:02:54,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,81 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:54,468 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:02:54,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:02:54,469 INFO L85 PathProgramCache]: Analyzing trace with hash -240044495, now seen corresponding path program 41 times [2021-11-02 23:02:54,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:02:54,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643563866] [2021-11-02 23:02:54,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:02:54,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:02:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:02:55,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5822 backedges. 0 proven. 5822 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:02:55,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:02:55,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643563866] [2021-11-02 23:02:55,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643563866] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:02:55,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104200590] [2021-11-02 23:02:55,288 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:02:55,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:02:55,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:02:55,289 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:02:55,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-11-02 23:02:59,252 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-11-02 23:02:59,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:02:59,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-02 23:02:59,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:00,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5822 backedges. 0 proven. 5822 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:00,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104200590] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:00,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:00,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-11-02 23:03:00,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573684673] [2021-11-02 23:03:00,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-02 23:03:00,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:00,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-02 23:03:00,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-02 23:03:00,067 INFO L87 Difference]: Start difference. First operand 295 states and 295 transitions. Second operand has 44 states, 43 states have (on average 6.744186046511628) internal successors, (290), 43 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:00,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:00,168 INFO L93 Difference]: Finished difference Result 301 states and 301 transitions. [2021-11-02 23:03:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-02 23:03:00,168 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.744186046511628) internal successors, (290), 43 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2021-11-02 23:03:00,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:00,170 INFO L225 Difference]: With dead ends: 301 [2021-11-02 23:03:00,170 INFO L226 Difference]: Without dead ends: 300 [2021-11-02 23:03:00,170 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-02 23:03:00,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2021-11-02 23:03:00,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 299. [2021-11-02 23:03:00,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 297 states have (on average 1.0067340067340067) internal successors, (299), 298 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:00,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 299 transitions. [2021-11-02 23:03:00,176 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 299 transitions. Word has length 290 [2021-11-02 23:03:00,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:00,176 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 299 transitions. [2021-11-02 23:03:00,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.744186046511628) internal successors, (290), 43 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:00,177 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 299 transitions. [2021-11-02 23:03:00,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2021-11-02 23:03:00,179 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:00,179 INFO L513 BasicCegarLoop]: trace histogram [42, 42, 42, 42, 41, 41, 41, 1, 1] [2021-11-02 23:03:00,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2021-11-02 23:03:00,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,82 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:00,404 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:00,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:00,404 INFO L85 PathProgramCache]: Analyzing trace with hash -44958947, now seen corresponding path program 41 times [2021-11-02 23:03:00,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:00,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408509357] [2021-11-02 23:03:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:00,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:01,314 INFO L134 CoverageAnalysis]: Checked inductivity of 5945 backedges. 0 proven. 5945 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:01,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:01,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408509357] [2021-11-02 23:03:01,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408509357] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:01,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713749378] [2021-11-02 23:03:01,315 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:03:01,316 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:01,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:01,317 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:01,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-11-02 23:03:05,276 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-11-02 23:03:05,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:03:05,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 43 conjunts are in the unsatisfiable core [2021-11-02 23:03:05,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 5945 backedges. 0 proven. 5945 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:06,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713749378] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:06,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:06,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-11-02 23:03:06,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835656456] [2021-11-02 23:03:06,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-11-02 23:03:06,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:06,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-11-02 23:03:06,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-02 23:03:06,037 INFO L87 Difference]: Start difference. First operand 299 states and 299 transitions. Second operand has 44 states, 43 states have (on average 6.813953488372093) internal successors, (293), 43 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:06,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:06,150 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2021-11-02 23:03:06,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-02 23:03:06,151 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 6.813953488372093) internal successors, (293), 43 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 293 [2021-11-02 23:03:06,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:06,152 INFO L225 Difference]: With dead ends: 303 [2021-11-02 23:03:06,152 INFO L226 Difference]: Without dead ends: 302 [2021-11-02 23:03:06,153 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 292 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-11-02 23:03:06,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-11-02 23:03:06,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2021-11-02 23:03:06,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 300 states have (on average 1.0066666666666666) internal successors, (302), 301 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:06,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 302 transitions. [2021-11-02 23:03:06,157 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 302 transitions. Word has length 293 [2021-11-02 23:03:06,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:06,157 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 302 transitions. [2021-11-02 23:03:06,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 6.813953488372093) internal successors, (293), 43 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:06,157 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 302 transitions. [2021-11-02 23:03:06,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-02 23:03:06,159 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:06,159 INFO L513 BasicCegarLoop]: trace histogram [43, 42, 42, 42, 42, 42, 42, 1, 1] [2021-11-02 23:03:06,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Forceful destruction successful, exit code 0 [2021-11-02 23:03:06,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable87 [2021-11-02 23:03:06,359 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:06,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:06,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1081301151, now seen corresponding path program 42 times [2021-11-02 23:03:06,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:06,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864287534] [2021-11-02 23:03:06,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:06,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 6111 backedges. 0 proven. 6111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:07,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:07,275 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864287534] [2021-11-02 23:03:07,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864287534] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:07,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [242542514] [2021-11-02 23:03:07,276 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:03:07,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:07,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:07,277 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:07,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-11-02 23:03:11,110 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-11-02 23:03:11,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:03:11,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-02 23:03:11,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:11,833 INFO L134 CoverageAnalysis]: Checked inductivity of 6111 backedges. 0 proven. 6111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:11,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [242542514] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:11,833 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:11,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-11-02 23:03:11,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882133260] [2021-11-02 23:03:11,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-02 23:03:11,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:11,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-02 23:03:11,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-02 23:03:11,835 INFO L87 Difference]: Start difference. First operand 302 states and 302 transitions. Second operand has 45 states, 44 states have (on average 6.75) internal successors, (297), 44 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:11,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:11,930 INFO L93 Difference]: Finished difference Result 308 states and 308 transitions. [2021-11-02 23:03:11,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-02 23:03:11,931 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 6.75) internal successors, (297), 44 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2021-11-02 23:03:11,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:11,932 INFO L225 Difference]: With dead ends: 308 [2021-11-02 23:03:11,932 INFO L226 Difference]: Without dead ends: 307 [2021-11-02 23:03:11,933 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-02 23:03:11,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-02 23:03:11,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 306. [2021-11-02 23:03:11,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 304 states have (on average 1.006578947368421) internal successors, (306), 305 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 306 transitions. [2021-11-02 23:03:11,938 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 306 transitions. Word has length 297 [2021-11-02 23:03:11,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:11,938 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 306 transitions. [2021-11-02 23:03:11,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 6.75) internal successors, (297), 44 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 306 transitions. [2021-11-02 23:03:11,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-11-02 23:03:11,940 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:11,940 INFO L513 BasicCegarLoop]: trace histogram [43, 43, 43, 43, 42, 42, 42, 1, 1] [2021-11-02 23:03:11,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-11-02 23:03:12,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 84 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-11-02 23:03:12,141 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:12,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:12,141 INFO L85 PathProgramCache]: Analyzing trace with hash -787825683, now seen corresponding path program 42 times [2021-11-02 23:03:12,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:12,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795132841] [2021-11-02 23:03:12,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:12,142 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:12,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:13,005 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 0 proven. 6237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:13,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:13,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795132841] [2021-11-02 23:03:13,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795132841] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:13,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38772769] [2021-11-02 23:03:13,006 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:03:13,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:13,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:13,007 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:13,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-11-02 23:03:16,963 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-11-02 23:03:16,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:03:16,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-02 23:03:16,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:17,861 INFO L134 CoverageAnalysis]: Checked inductivity of 6237 backedges. 0 proven. 6237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:17,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38772769] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:17,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:17,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-11-02 23:03:17,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103907062] [2021-11-02 23:03:17,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-02 23:03:17,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:17,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-02 23:03:17,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-02 23:03:17,865 INFO L87 Difference]: Start difference. First operand 306 states and 306 transitions. Second operand has 45 states, 44 states have (on average 6.818181818181818) internal successors, (300), 44 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:18,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:18,034 INFO L93 Difference]: Finished difference Result 310 states and 310 transitions. [2021-11-02 23:03:18,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-02 23:03:18,035 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 6.818181818181818) internal successors, (300), 44 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2021-11-02 23:03:18,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:18,037 INFO L225 Difference]: With dead ends: 310 [2021-11-02 23:03:18,038 INFO L226 Difference]: Without dead ends: 309 [2021-11-02 23:03:18,038 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-11-02 23:03:18,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-02 23:03:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2021-11-02 23:03:18,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 307 states have (on average 1.006514657980456) internal successors, (309), 308 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:18,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 309 transitions. [2021-11-02 23:03:18,046 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 309 transitions. Word has length 300 [2021-11-02 23:03:18,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:18,046 INFO L470 AbstractCegarLoop]: Abstraction has 309 states and 309 transitions. [2021-11-02 23:03:18,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 6.818181818181818) internal successors, (300), 44 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:18,047 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 309 transitions. [2021-11-02 23:03:18,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-11-02 23:03:18,049 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:18,049 INFO L513 BasicCegarLoop]: trace histogram [44, 43, 43, 43, 43, 43, 43, 1, 1] [2021-11-02 23:03:18,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2021-11-02 23:03:18,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable89 [2021-11-02 23:03:18,265 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:18,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:18,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1806139343, now seen corresponding path program 43 times [2021-11-02 23:03:18,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:18,266 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120459892] [2021-11-02 23:03:18,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:18,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6407 backedges. 0 proven. 6407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:19,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:19,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120459892] [2021-11-02 23:03:19,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120459892] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:19,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28439078] [2021-11-02 23:03:19,263 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:03:19,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:19,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:19,264 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:19,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-11-02 23:03:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:23,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-02 23:03:23,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 6407 backedges. 0 proven. 6407 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:24,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28439078] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:24,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:24,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-11-02 23:03:24,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181329724] [2021-11-02 23:03:24,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-02 23:03:24,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:24,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-02 23:03:24,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-02 23:03:24,329 INFO L87 Difference]: Start difference. First operand 309 states and 309 transitions. Second operand has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 45 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:24,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:24,452 INFO L93 Difference]: Finished difference Result 315 states and 315 transitions. [2021-11-02 23:03:24,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-02 23:03:24,453 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 45 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 304 [2021-11-02 23:03:24,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:24,454 INFO L225 Difference]: With dead ends: 315 [2021-11-02 23:03:24,454 INFO L226 Difference]: Without dead ends: 314 [2021-11-02 23:03:24,455 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-02 23:03:24,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2021-11-02 23:03:24,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 313. [2021-11-02 23:03:24,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 311 states have (on average 1.0064308681672025) internal successors, (313), 312 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:24,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 313 transitions. [2021-11-02 23:03:24,460 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 313 transitions. Word has length 304 [2021-11-02 23:03:24,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:24,460 INFO L470 AbstractCegarLoop]: Abstraction has 313 states and 313 transitions. [2021-11-02 23:03:24,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 6.7555555555555555) internal successors, (304), 45 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:24,461 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 313 transitions. [2021-11-02 23:03:24,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-11-02 23:03:24,462 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:24,463 INFO L513 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 43, 43, 43, 1, 1] [2021-11-02 23:03:24,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Forceful destruction successful, exit code 0 [2021-11-02 23:03:24,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,86 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:24,663 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:24,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:24,664 INFO L85 PathProgramCache]: Analyzing trace with hash 653160733, now seen corresponding path program 43 times [2021-11-02 23:03:24,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:24,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374704901] [2021-11-02 23:03:24,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:24,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:25,629 INFO L134 CoverageAnalysis]: Checked inductivity of 6536 backedges. 0 proven. 6536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:25,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:25,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374704901] [2021-11-02 23:03:25,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374704901] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:25,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506911285] [2021-11-02 23:03:25,630 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:03:25,630 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:25,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:25,632 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:25,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-11-02 23:03:30,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:30,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-02 23:03:30,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:30,993 INFO L134 CoverageAnalysis]: Checked inductivity of 6536 backedges. 0 proven. 6536 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:30,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506911285] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:30,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:30,994 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-11-02 23:03:30,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525528567] [2021-11-02 23:03:30,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-11-02 23:03:30,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:30,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-11-02 23:03:30,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-02 23:03:30,995 INFO L87 Difference]: Start difference. First operand 313 states and 313 transitions. Second operand has 46 states, 45 states have (on average 6.822222222222222) internal successors, (307), 45 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:31,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:31,118 INFO L93 Difference]: Finished difference Result 317 states and 317 transitions. [2021-11-02 23:03:31,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-02 23:03:31,119 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 6.822222222222222) internal successors, (307), 45 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 307 [2021-11-02 23:03:31,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:31,121 INFO L225 Difference]: With dead ends: 317 [2021-11-02 23:03:31,121 INFO L226 Difference]: Without dead ends: 316 [2021-11-02 23:03:31,121 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-11-02 23:03:31,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-02 23:03:31,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 316. [2021-11-02 23:03:31,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 314 states have (on average 1.0063694267515924) internal successors, (316), 315 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:31,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 316 transitions. [2021-11-02 23:03:31,128 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 316 transitions. Word has length 307 [2021-11-02 23:03:31,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:31,129 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 316 transitions. [2021-11-02 23:03:31,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 6.822222222222222) internal successors, (307), 45 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:31,129 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 316 transitions. [2021-11-02 23:03:31,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-11-02 23:03:31,131 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:31,131 INFO L513 BasicCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 1, 1] [2021-11-02 23:03:31,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2021-11-02 23:03:31,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,87 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:31,332 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:31,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:31,333 INFO L85 PathProgramCache]: Analyzing trace with hash 972954977, now seen corresponding path program 44 times [2021-11-02 23:03:31,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:31,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101624014] [2021-11-02 23:03:31,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:31,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:31,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:32,400 INFO L134 CoverageAnalysis]: Checked inductivity of 6710 backedges. 0 proven. 6710 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:32,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:32,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101624014] [2021-11-02 23:03:32,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101624014] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:32,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254983663] [2021-11-02 23:03:32,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:03:32,401 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:32,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:32,402 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:32,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-11-02 23:03:37,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:03:37,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:03:37,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-02 23:03:37,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 6710 backedges. 0 proven. 6710 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:37,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254983663] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:37,879 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:37,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-11-02 23:03:37,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013736230] [2021-11-02 23:03:37,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-02 23:03:37,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:37,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-02 23:03:37,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-02 23:03:37,881 INFO L87 Difference]: Start difference. First operand 316 states and 316 transitions. Second operand has 47 states, 46 states have (on average 6.760869565217392) internal successors, (311), 46 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:38,001 INFO L93 Difference]: Finished difference Result 322 states and 322 transitions. [2021-11-02 23:03:38,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-02 23:03:38,001 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 6.760869565217392) internal successors, (311), 46 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 311 [2021-11-02 23:03:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:38,003 INFO L225 Difference]: With dead ends: 322 [2021-11-02 23:03:38,003 INFO L226 Difference]: Without dead ends: 321 [2021-11-02 23:03:38,003 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-02 23:03:38,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-02 23:03:38,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 320. [2021-11-02 23:03:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 318 states have (on average 1.0062893081761006) internal successors, (320), 319 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:38,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 320 transitions. [2021-11-02 23:03:38,008 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 320 transitions. Word has length 311 [2021-11-02 23:03:38,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:38,009 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 320 transitions. [2021-11-02 23:03:38,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 6.760869565217392) internal successors, (311), 46 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 320 transitions. [2021-11-02 23:03:38,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-11-02 23:03:38,010 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:38,010 INFO L513 BasicCegarLoop]: trace histogram [45, 45, 45, 45, 44, 44, 44, 1, 1] [2021-11-02 23:03:38,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2021-11-02 23:03:38,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92,88 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:38,211 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:38,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:38,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1432517139, now seen corresponding path program 44 times [2021-11-02 23:03:38,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:38,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830224425] [2021-11-02 23:03:38,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:38,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:39,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6842 backedges. 0 proven. 6842 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:39,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:39,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830224425] [2021-11-02 23:03:39,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830224425] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:39,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102081233] [2021-11-02 23:03:39,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:03:39,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:39,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:39,290 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:39,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-11-02 23:03:43,965 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:03:43,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:03:43,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-02 23:03:43,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:44,829 INFO L134 CoverageAnalysis]: Checked inductivity of 6842 backedges. 0 proven. 6842 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:44,830 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102081233] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:44,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:44,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-11-02 23:03:44,830 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281422265] [2021-11-02 23:03:44,831 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-02 23:03:44,831 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:44,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-02 23:03:44,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-02 23:03:44,832 INFO L87 Difference]: Start difference. First operand 320 states and 320 transitions. Second operand has 47 states, 46 states have (on average 6.826086956521739) internal successors, (314), 46 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:44,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:44,955 INFO L93 Difference]: Finished difference Result 324 states and 324 transitions. [2021-11-02 23:03:44,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-02 23:03:44,956 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 6.826086956521739) internal successors, (314), 46 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 314 [2021-11-02 23:03:44,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:44,957 INFO L225 Difference]: With dead ends: 324 [2021-11-02 23:03:44,958 INFO L226 Difference]: Without dead ends: 323 [2021-11-02 23:03:44,958 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-11-02 23:03:44,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-02 23:03:44,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2021-11-02 23:03:44,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 321 states have (on average 1.0062305295950156) internal successors, (323), 322 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:44,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 323 transitions. [2021-11-02 23:03:44,963 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 323 transitions. Word has length 314 [2021-11-02 23:03:44,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:44,964 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 323 transitions. [2021-11-02 23:03:44,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 6.826086956521739) internal successors, (314), 46 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:44,964 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 323 transitions. [2021-11-02 23:03:44,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2021-11-02 23:03:44,965 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:44,966 INFO L513 BasicCegarLoop]: trace histogram [46, 45, 45, 45, 45, 45, 45, 1, 1] [2021-11-02 23:03:45,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Forceful destruction successful, exit code 0 [2021-11-02 23:03:45,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,89 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:45,166 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:45,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:45,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1937132081, now seen corresponding path program 45 times [2021-11-02 23:03:45,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:45,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016979139] [2021-11-02 23:03:45,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:45,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 7020 backedges. 0 proven. 7020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:46,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:46,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016979139] [2021-11-02 23:03:46,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016979139] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:46,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [676191456] [2021-11-02 23:03:46,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:03:46,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:46,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:46,218 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:46,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-11-02 23:03:51,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-11-02 23:03:51,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:03:51,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 597 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-02 23:03:51,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:52,013 INFO L134 CoverageAnalysis]: Checked inductivity of 7020 backedges. 0 proven. 7020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:52,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [676191456] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:52,013 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:52,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-11-02 23:03:52,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181205851] [2021-11-02 23:03:52,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-02 23:03:52,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:52,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-02 23:03:52,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-02 23:03:52,016 INFO L87 Difference]: Start difference. First operand 323 states and 323 transitions. Second operand has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:52,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:52,150 INFO L93 Difference]: Finished difference Result 329 states and 329 transitions. [2021-11-02 23:03:52,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-02 23:03:52,151 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 318 [2021-11-02 23:03:52,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:52,153 INFO L225 Difference]: With dead ends: 329 [2021-11-02 23:03:52,153 INFO L226 Difference]: Without dead ends: 328 [2021-11-02 23:03:52,153 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-02 23:03:52,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-11-02 23:03:52,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 327. [2021-11-02 23:03:52,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 327 states, 325 states have (on average 1.0061538461538462) internal successors, (327), 326 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:52,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 327 states and 327 transitions. [2021-11-02 23:03:52,161 INFO L78 Accepts]: Start accepts. Automaton has 327 states and 327 transitions. Word has length 318 [2021-11-02 23:03:52,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:52,161 INFO L470 AbstractCegarLoop]: Abstraction has 327 states and 327 transitions. [2021-11-02 23:03:52,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.76595744680851) internal successors, (318), 47 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:52,162 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 327 transitions. [2021-11-02 23:03:52,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-02 23:03:52,165 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:52,165 INFO L513 BasicCegarLoop]: trace histogram [46, 46, 46, 46, 45, 45, 45, 1, 1] [2021-11-02 23:03:52,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2021-11-02 23:03:52,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,90 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:52,383 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:52,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:52,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1921279773, now seen corresponding path program 45 times [2021-11-02 23:03:52,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:52,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432749389] [2021-11-02 23:03:52,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:52,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:52,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:03:53,448 INFO L134 CoverageAnalysis]: Checked inductivity of 7155 backedges. 0 proven. 7155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:53,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:03:53,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432749389] [2021-11-02 23:03:53,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432749389] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:53,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223334461] [2021-11-02 23:03:53,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:03:53,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:53,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:03:53,450 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:03:53,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-11-02 23:03:58,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-11-02 23:03:58,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:03:58,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-02 23:03:58,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:03:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 7155 backedges. 0 proven. 7155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:03:59,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223334461] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:03:59,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:03:59,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-11-02 23:03:59,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415689587] [2021-11-02 23:03:59,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-02 23:03:59,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:03:59,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-02 23:03:59,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-02 23:03:59,202 INFO L87 Difference]: Start difference. First operand 327 states and 327 transitions. Second operand has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 47 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:59,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:03:59,324 INFO L93 Difference]: Finished difference Result 331 states and 331 transitions. [2021-11-02 23:03:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-02 23:03:59,325 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 47 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2021-11-02 23:03:59,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:03:59,327 INFO L225 Difference]: With dead ends: 331 [2021-11-02 23:03:59,327 INFO L226 Difference]: Without dead ends: 330 [2021-11-02 23:03:59,328 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-11-02 23:03:59,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-02 23:03:59,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2021-11-02 23:03:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 328 states have (on average 1.0060975609756098) internal successors, (330), 329 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 330 transitions. [2021-11-02 23:03:59,334 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 330 transitions. Word has length 321 [2021-11-02 23:03:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:03:59,334 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 330 transitions. [2021-11-02 23:03:59,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 6.829787234042553) internal successors, (321), 47 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:03:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 330 transitions. [2021-11-02 23:03:59,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-11-02 23:03:59,337 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:03:59,337 INFO L513 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 46, 46, 1, 1] [2021-11-02 23:03:59,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2021-11-02 23:03:59,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,91 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:03:59,538 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:03:59,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:03:59,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1034490721, now seen corresponding path program 46 times [2021-11-02 23:03:59,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:03:59,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676914890] [2021-11-02 23:03:59,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:03:59,538 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:03:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:00,736 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:00,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:00,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676914890] [2021-11-02 23:04:00,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676914890] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:00,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540608773] [2021-11-02 23:04:00,737 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:04:00,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:00,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:00,738 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:00,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-11-02 23:04:05,974 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:04:05,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:04:05,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-02 23:04:05,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:04:07,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7337 backedges. 0 proven. 7337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:07,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540608773] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:07,024 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:04:07,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-11-02 23:04:07,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747483813] [2021-11-02 23:04:07,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-02 23:04:07,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:07,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-02 23:04:07,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-02 23:04:07,025 INFO L87 Difference]: Start difference. First operand 330 states and 330 transitions. Second operand has 49 states, 48 states have (on average 6.770833333333333) internal successors, (325), 48 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:07,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:07,164 INFO L93 Difference]: Finished difference Result 336 states and 336 transitions. [2021-11-02 23:04:07,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-02 23:04:07,165 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 6.770833333333333) internal successors, (325), 48 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-11-02 23:04:07,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:07,167 INFO L225 Difference]: With dead ends: 336 [2021-11-02 23:04:07,167 INFO L226 Difference]: Without dead ends: 335 [2021-11-02 23:04:07,167 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-02 23:04:07,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2021-11-02 23:04:07,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 334. [2021-11-02 23:04:07,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 332 states have (on average 1.0060240963855422) internal successors, (334), 333 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:07,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 334 transitions. [2021-11-02 23:04:07,173 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 334 transitions. Word has length 325 [2021-11-02 23:04:07,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:07,173 INFO L470 AbstractCegarLoop]: Abstraction has 334 states and 334 transitions. [2021-11-02 23:04:07,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 6.770833333333333) internal successors, (325), 48 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:07,173 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 334 transitions. [2021-11-02 23:04:07,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2021-11-02 23:04:07,175 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:07,175 INFO L513 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 46, 46, 46, 1, 1] [2021-11-02 23:04:07,217 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Forceful destruction successful, exit code 0 [2021-11-02 23:04:07,376 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,92 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:07,376 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:04:07,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:07,376 INFO L85 PathProgramCache]: Analyzing trace with hash 2122764269, now seen corresponding path program 46 times [2021-11-02 23:04:07,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:07,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647671910] [2021-11-02 23:04:07,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:07,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:07,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:08,508 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:08,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:08,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647671910] [2021-11-02 23:04:08,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647671910] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:08,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002071212] [2021-11-02 23:04:08,509 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:04:08,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:08,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:08,510 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:08,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-11-02 23:04:13,919 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:04:13,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:04:13,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-02 23:04:13,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:04:14,959 INFO L134 CoverageAnalysis]: Checked inductivity of 7475 backedges. 0 proven. 7475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:14,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002071212] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:14,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:04:14,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-11-02 23:04:14,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067993186] [2021-11-02 23:04:14,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-02 23:04:14,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-02 23:04:14,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-02 23:04:14,961 INFO L87 Difference]: Start difference. First operand 334 states and 334 transitions. Second operand has 49 states, 48 states have (on average 6.833333333333333) internal successors, (328), 48 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:15,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:15,120 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2021-11-02 23:04:15,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-02 23:04:15,121 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 6.833333333333333) internal successors, (328), 48 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 328 [2021-11-02 23:04:15,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:15,124 INFO L225 Difference]: With dead ends: 338 [2021-11-02 23:04:15,124 INFO L226 Difference]: Without dead ends: 337 [2021-11-02 23:04:15,125 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 327 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-11-02 23:04:15,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-11-02 23:04:15,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2021-11-02 23:04:15,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 337 states, 335 states have (on average 1.0059701492537314) internal successors, (337), 336 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 337 transitions. [2021-11-02 23:04:15,134 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 337 transitions. Word has length 328 [2021-11-02 23:04:15,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:15,134 INFO L470 AbstractCegarLoop]: Abstraction has 337 states and 337 transitions. [2021-11-02 23:04:15,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 6.833333333333333) internal successors, (328), 48 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:15,135 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 337 transitions. [2021-11-02 23:04:15,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-11-02 23:04:15,137 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:15,138 INFO L513 BasicCegarLoop]: trace histogram [48, 47, 47, 47, 47, 47, 47, 1, 1] [2021-11-02 23:04:15,202 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2021-11-02 23:04:15,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-11-02 23:04:15,352 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:04:15,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:15,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1034589233, now seen corresponding path program 47 times [2021-11-02 23:04:15,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:15,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372004246] [2021-11-02 23:04:15,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:15,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:15,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:16,884 INFO L134 CoverageAnalysis]: Checked inductivity of 7661 backedges. 0 proven. 7661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:16,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:16,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372004246] [2021-11-02 23:04:16,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372004246] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:16,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14261038] [2021-11-02 23:04:16,885 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:04:16,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:16,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:16,889 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:16,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-11-02 23:04:22,590 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-11-02 23:04:22,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:04:22,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-02 23:04:22,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:04:23,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7661 backedges. 0 proven. 7661 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:23,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14261038] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:23,586 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:04:23,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-11-02 23:04:23,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818638218] [2021-11-02 23:04:23,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-02 23:04:23,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-02 23:04:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-02 23:04:23,587 INFO L87 Difference]: Start difference. First operand 337 states and 337 transitions. Second operand has 50 states, 49 states have (on average 6.775510204081633) internal successors, (332), 49 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:23,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:23,725 INFO L93 Difference]: Finished difference Result 343 states and 343 transitions. [2021-11-02 23:04:23,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-02 23:04:23,726 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 6.775510204081633) internal successors, (332), 49 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 332 [2021-11-02 23:04:23,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:23,727 INFO L225 Difference]: With dead ends: 343 [2021-11-02 23:04:23,727 INFO L226 Difference]: Without dead ends: 342 [2021-11-02 23:04:23,728 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-02 23:04:23,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-02 23:04:23,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 341. [2021-11-02 23:04:23,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 339 states have (on average 1.0058997050147493) internal successors, (341), 340 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:23,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 341 transitions. [2021-11-02 23:04:23,733 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 341 transitions. Word has length 332 [2021-11-02 23:04:23,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:23,733 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 341 transitions. [2021-11-02 23:04:23,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 6.775510204081633) internal successors, (332), 49 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:23,734 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 341 transitions. [2021-11-02 23:04:23,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-11-02 23:04:23,736 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:23,736 INFO L513 BasicCegarLoop]: trace histogram [48, 48, 48, 48, 47, 47, 47, 1, 1] [2021-11-02 23:04:23,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2021-11-02 23:04:23,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98,94 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:23,940 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:04:23,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:23,940 INFO L85 PathProgramCache]: Analyzing trace with hash 762567965, now seen corresponding path program 47 times [2021-11-02 23:04:23,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:23,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939621598] [2021-11-02 23:04:23,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:23,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:25,199 INFO L134 CoverageAnalysis]: Checked inductivity of 7802 backedges. 0 proven. 7802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:25,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:25,199 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939621598] [2021-11-02 23:04:25,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939621598] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:25,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840390827] [2021-11-02 23:04:25,200 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:04:25,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:25,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:25,201 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:25,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-11-02 23:04:30,334 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-11-02 23:04:30,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:04:30,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 49 conjunts are in the unsatisfiable core [2021-11-02 23:04:30,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:04:31,211 INFO L134 CoverageAnalysis]: Checked inductivity of 7802 backedges. 0 proven. 7802 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:31,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840390827] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:31,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:04:31,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-11-02 23:04:31,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780878217] [2021-11-02 23:04:31,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-11-02 23:04:31,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:31,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-11-02 23:04:31,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-02 23:04:31,213 INFO L87 Difference]: Start difference. First operand 341 states and 341 transitions. Second operand has 50 states, 49 states have (on average 6.836734693877551) internal successors, (335), 49 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:31,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:31,389 INFO L93 Difference]: Finished difference Result 345 states and 345 transitions. [2021-11-02 23:04:31,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-11-02 23:04:31,390 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 6.836734693877551) internal successors, (335), 49 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 335 [2021-11-02 23:04:31,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:31,392 INFO L225 Difference]: With dead ends: 345 [2021-11-02 23:04:31,392 INFO L226 Difference]: Without dead ends: 344 [2021-11-02 23:04:31,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-11-02 23:04:31,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-11-02 23:04:31,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2021-11-02 23:04:31,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 342 states have (on average 1.0058479532163742) internal successors, (344), 343 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:31,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 344 transitions. [2021-11-02 23:04:31,400 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 344 transitions. Word has length 335 [2021-11-02 23:04:31,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:31,401 INFO L470 AbstractCegarLoop]: Abstraction has 344 states and 344 transitions. [2021-11-02 23:04:31,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 6.836734693877551) internal successors, (335), 49 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:31,401 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 344 transitions. [2021-11-02 23:04:31,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2021-11-02 23:04:31,403 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:31,404 INFO L513 BasicCegarLoop]: trace histogram [49, 48, 48, 48, 48, 48, 48, 1, 1] [2021-11-02 23:04:31,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Forceful destruction successful, exit code 0 [2021-11-02 23:04:31,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99,95 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:31,632 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:04:31,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:31,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1743620449, now seen corresponding path program 48 times [2021-11-02 23:04:31,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:31,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28770148] [2021-11-02 23:04:31,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:31,632 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 7992 backedges. 0 proven. 7992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:32,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:32,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28770148] [2021-11-02 23:04:32,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28770148] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:32,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036448945] [2021-11-02 23:04:32,666 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:04:32,667 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:32,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:32,667 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:32,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-11-02 23:04:37,695 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-11-02 23:04:37,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:04:37,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-02 23:04:37,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:04:38,571 INFO L134 CoverageAnalysis]: Checked inductivity of 7992 backedges. 0 proven. 7992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:38,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036448945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:38,571 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:04:38,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-11-02 23:04:38,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742349787] [2021-11-02 23:04:38,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-11-02 23:04:38,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:38,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-11-02 23:04:38,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-02 23:04:38,574 INFO L87 Difference]: Start difference. First operand 344 states and 344 transitions. Second operand has 51 states, 50 states have (on average 6.78) internal successors, (339), 50 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:38,689 INFO L93 Difference]: Finished difference Result 350 states and 350 transitions. [2021-11-02 23:04:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-02 23:04:38,689 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 6.78) internal successors, (339), 50 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 339 [2021-11-02 23:04:38,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:38,691 INFO L225 Difference]: With dead ends: 350 [2021-11-02 23:04:38,692 INFO L226 Difference]: Without dead ends: 349 [2021-11-02 23:04:38,692 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-02 23:04:38,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-11-02 23:04:38,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 348. [2021-11-02 23:04:38,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 346 states have (on average 1.0057803468208093) internal successors, (348), 347 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:38,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 348 transitions. [2021-11-02 23:04:38,699 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 348 transitions. Word has length 339 [2021-11-02 23:04:38,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:38,700 INFO L470 AbstractCegarLoop]: Abstraction has 348 states and 348 transitions. [2021-11-02 23:04:38,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 6.78) internal successors, (339), 50 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:38,700 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 348 transitions. [2021-11-02 23:04:38,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 343 [2021-11-02 23:04:38,701 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:38,701 INFO L513 BasicCegarLoop]: trace histogram [49, 49, 49, 49, 48, 48, 48, 1, 1] [2021-11-02 23:04:38,739 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-11-02 23:04:38,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-11-02 23:04:38,902 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:04:38,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:38,902 INFO L85 PathProgramCache]: Analyzing trace with hash 862362093, now seen corresponding path program 48 times [2021-11-02 23:04:38,902 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:38,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62260290] [2021-11-02 23:04:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:38,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:40,024 INFO L134 CoverageAnalysis]: Checked inductivity of 8136 backedges. 0 proven. 8136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:40,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:40,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62260290] [2021-11-02 23:04:40,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62260290] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:40,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738199901] [2021-11-02 23:04:40,025 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:04:40,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:40,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:40,026 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:40,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-11-02 23:04:45,349 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-11-02 23:04:45,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:04:45,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-02 23:04:45,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:04:46,331 INFO L134 CoverageAnalysis]: Checked inductivity of 8136 backedges. 0 proven. 8136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:46,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738199901] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:46,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:04:46,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-11-02 23:04:46,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009320070] [2021-11-02 23:04:46,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-11-02 23:04:46,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:46,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-11-02 23:04:46,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-02 23:04:46,333 INFO L87 Difference]: Start difference. First operand 348 states and 348 transitions. Second operand has 51 states, 50 states have (on average 6.84) internal successors, (342), 50 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:46,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:46,457 INFO L93 Difference]: Finished difference Result 352 states and 352 transitions. [2021-11-02 23:04:46,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-02 23:04:46,458 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 6.84) internal successors, (342), 50 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 342 [2021-11-02 23:04:46,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:46,459 INFO L225 Difference]: With dead ends: 352 [2021-11-02 23:04:46,459 INFO L226 Difference]: Without dead ends: 351 [2021-11-02 23:04:46,460 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-11-02 23:04:46,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2021-11-02 23:04:46,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 351. [2021-11-02 23:04:46,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 349 states have (on average 1.005730659025788) internal successors, (351), 350 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:46,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 351 transitions. [2021-11-02 23:04:46,468 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 351 transitions. Word has length 342 [2021-11-02 23:04:46,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:46,469 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 351 transitions. [2021-11-02 23:04:46,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 6.84) internal successors, (342), 50 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:46,469 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 351 transitions. [2021-11-02 23:04:46,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-02 23:04:46,471 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:46,471 INFO L513 BasicCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 1, 1] [2021-11-02 23:04:46,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Ended with exit code 0 [2021-11-02 23:04:46,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-11-02 23:04:46,676 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:04:46,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:46,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1986699727, now seen corresponding path program 49 times [2021-11-02 23:04:46,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:46,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891824393] [2021-11-02 23:04:46,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:46,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:46,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:47,866 INFO L134 CoverageAnalysis]: Checked inductivity of 8330 backedges. 0 proven. 8330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:47,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:47,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891824393] [2021-11-02 23:04:47,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891824393] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:47,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225706633] [2021-11-02 23:04:47,867 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:04:47,868 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:47,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:47,870 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:47,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-11-02 23:04:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:53,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-02 23:04:53,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:04:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 8330 backedges. 0 proven. 8330 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:54,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225706633] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:54,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:04:54,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-11-02 23:04:54,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598553961] [2021-11-02 23:04:54,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-02 23:04:54,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:04:54,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-02 23:04:54,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-02 23:04:54,112 INFO L87 Difference]: Start difference. First operand 351 states and 351 transitions. Second operand has 52 states, 51 states have (on average 6.784313725490196) internal successors, (346), 51 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:54,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:04:54,236 INFO L93 Difference]: Finished difference Result 357 states and 357 transitions. [2021-11-02 23:04:54,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-02 23:04:54,237 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 6.784313725490196) internal successors, (346), 51 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 346 [2021-11-02 23:04:54,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:04:54,238 INFO L225 Difference]: With dead ends: 357 [2021-11-02 23:04:54,238 INFO L226 Difference]: Without dead ends: 356 [2021-11-02 23:04:54,238 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-02 23:04:54,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2021-11-02 23:04:54,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 355. [2021-11-02 23:04:54,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 353 states have (on average 1.0056657223796035) internal successors, (355), 354 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:54,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 355 transitions. [2021-11-02 23:04:54,242 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 355 transitions. Word has length 346 [2021-11-02 23:04:54,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:04:54,242 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 355 transitions. [2021-11-02 23:04:54,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 6.784313725490196) internal successors, (346), 51 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:04:54,243 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 355 transitions. [2021-11-02 23:04:54,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2021-11-02 23:04:54,244 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:04:54,244 INFO L513 BasicCegarLoop]: trace histogram [50, 50, 50, 50, 49, 49, 49, 1, 1] [2021-11-02 23:04:54,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-11-02 23:04:54,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable102 [2021-11-02 23:04:54,445 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:04:54,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:04:54,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1122184419, now seen corresponding path program 49 times [2021-11-02 23:04:54,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:04:54,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759677270] [2021-11-02 23:04:54,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:04:54,445 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:04:54,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:04:55,646 INFO L134 CoverageAnalysis]: Checked inductivity of 8477 backedges. 0 proven. 8477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:04:55,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:04:55,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759677270] [2021-11-02 23:04:55,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759677270] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:04:55,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410318389] [2021-11-02 23:04:55,647 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:04:55,647 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:04:55,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:04:55,648 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:04:55,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-11-02 23:05:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:00,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-02 23:05:00,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:05:01,834 INFO L134 CoverageAnalysis]: Checked inductivity of 8477 backedges. 0 proven. 8477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:01,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410318389] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:01,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:05:01,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-11-02 23:05:01,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738168568] [2021-11-02 23:05:01,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-02 23:05:01,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:01,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-02 23:05:01,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-02 23:05:01,836 INFO L87 Difference]: Start difference. First operand 355 states and 355 transitions. Second operand has 52 states, 51 states have (on average 6.8431372549019605) internal successors, (349), 51 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:02,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:02,007 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2021-11-02 23:05:02,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-11-02 23:05:02,008 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 6.8431372549019605) internal successors, (349), 51 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 349 [2021-11-02 23:05:02,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:02,010 INFO L225 Difference]: With dead ends: 359 [2021-11-02 23:05:02,010 INFO L226 Difference]: Without dead ends: 358 [2021-11-02 23:05:02,011 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 348 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-11-02 23:05:02,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-02 23:05:02,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2021-11-02 23:05:02,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 356 states have (on average 1.0056179775280898) internal successors, (358), 357 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:02,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 358 transitions. [2021-11-02 23:05:02,018 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 358 transitions. Word has length 349 [2021-11-02 23:05:02,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:02,019 INFO L470 AbstractCegarLoop]: Abstraction has 358 states and 358 transitions. [2021-11-02 23:05:02,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 6.8431372549019605) internal successors, (349), 51 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:02,020 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 358 transitions. [2021-11-02 23:05:02,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-02 23:05:02,022 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:02,022 INFO L513 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 50, 50, 1, 1] [2021-11-02 23:05:02,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Forceful destruction successful, exit code 0 [2021-11-02 23:05:02,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-11-02 23:05:02,245 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:05:02,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:02,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1848344417, now seen corresponding path program 50 times [2021-11-02 23:05:02,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:02,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335883741] [2021-11-02 23:05:02,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:02,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 8675 backedges. 0 proven. 8675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:03,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:03,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335883741] [2021-11-02 23:05:03,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335883741] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:03,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095147340] [2021-11-02 23:05:03,421 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:05:03,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:03,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:05:03,424 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:05:03,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-11-02 23:05:08,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:05:08,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:05:08,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-02 23:05:08,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:05:09,574 INFO L134 CoverageAnalysis]: Checked inductivity of 8675 backedges. 0 proven. 8675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:09,575 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095147340] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:09,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:05:09,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-11-02 23:05:09,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122336611] [2021-11-02 23:05:09,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-02 23:05:09,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:09,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-02 23:05:09,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-02 23:05:09,576 INFO L87 Difference]: Start difference. First operand 358 states and 358 transitions. Second operand has 53 states, 52 states have (on average 6.788461538461538) internal successors, (353), 52 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:09,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:09,708 INFO L93 Difference]: Finished difference Result 364 states and 364 transitions. [2021-11-02 23:05:09,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-02 23:05:09,709 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 6.788461538461538) internal successors, (353), 52 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 353 [2021-11-02 23:05:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:09,709 INFO L225 Difference]: With dead ends: 364 [2021-11-02 23:05:09,709 INFO L226 Difference]: Without dead ends: 363 [2021-11-02 23:05:09,710 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-02 23:05:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2021-11-02 23:05:09,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 362. [2021-11-02 23:05:09,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 360 states have (on average 1.0055555555555555) internal successors, (362), 361 states have internal predecessors, (362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:09,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 362 transitions. [2021-11-02 23:05:09,751 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 362 transitions. Word has length 353 [2021-11-02 23:05:09,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:09,751 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 362 transitions. [2021-11-02 23:05:09,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 6.788461538461538) internal successors, (353), 52 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:09,752 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 362 transitions. [2021-11-02 23:05:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-11-02 23:05:09,753 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:09,753 INFO L513 BasicCegarLoop]: trace histogram [51, 51, 51, 51, 50, 50, 50, 1, 1] [2021-11-02 23:05:09,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Forceful destruction successful, exit code 0 [2021-11-02 23:05:09,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable104 [2021-11-02 23:05:09,960 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:05:09,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:09,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1747131411, now seen corresponding path program 50 times [2021-11-02 23:05:09,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:09,960 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84600831] [2021-11-02 23:05:09,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:09,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:10,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:11,012 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 0 proven. 8825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:11,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:11,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84600831] [2021-11-02 23:05:11,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84600831] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:11,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453952624] [2021-11-02 23:05:11,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:05:11,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:11,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:05:11,013 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:05:11,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2021-11-02 23:05:16,525 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:05:16,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:05:16,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-02 23:05:16,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:05:17,528 INFO L134 CoverageAnalysis]: Checked inductivity of 8825 backedges. 0 proven. 8825 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:17,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453952624] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:17,529 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:05:17,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-11-02 23:05:17,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784450405] [2021-11-02 23:05:17,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-02 23:05:17,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:17,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-02 23:05:17,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-02 23:05:17,530 INFO L87 Difference]: Start difference. First operand 362 states and 362 transitions. Second operand has 53 states, 52 states have (on average 6.846153846153846) internal successors, (356), 52 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:17,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:17,655 INFO L93 Difference]: Finished difference Result 366 states and 366 transitions. [2021-11-02 23:05:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-02 23:05:17,655 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 6.846153846153846) internal successors, (356), 52 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 356 [2021-11-02 23:05:17,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:17,656 INFO L225 Difference]: With dead ends: 366 [2021-11-02 23:05:17,656 INFO L226 Difference]: Without dead ends: 365 [2021-11-02 23:05:17,657 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-11-02 23:05:17,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-02 23:05:17,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-02 23:05:17,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 363 states have (on average 1.0055096418732783) internal successors, (365), 364 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:17,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 365 transitions. [2021-11-02 23:05:17,661 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 365 transitions. Word has length 356 [2021-11-02 23:05:17,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:17,662 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 365 transitions. [2021-11-02 23:05:17,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 6.846153846153846) internal successors, (356), 52 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:17,662 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 365 transitions. [2021-11-02 23:05:17,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-11-02 23:05:17,663 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:17,664 INFO L513 BasicCegarLoop]: trace histogram [52, 51, 51, 51, 51, 51, 51, 1, 1] [2021-11-02 23:05:17,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Ended with exit code 0 [2021-11-02 23:05:17,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-11-02 23:05:17,864 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:05:17,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:17,864 INFO L85 PathProgramCache]: Analyzing trace with hash -707352527, now seen corresponding path program 51 times [2021-11-02 23:05:17,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:17,865 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901622974] [2021-11-02 23:05:17,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:17,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:17,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:18,985 INFO L134 CoverageAnalysis]: Checked inductivity of 9027 backedges. 0 proven. 9027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:18,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:18,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901622974] [2021-11-02 23:05:18,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901622974] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:18,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367343688] [2021-11-02 23:05:18,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:05:18,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:18,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:05:18,987 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:05:18,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2021-11-02 23:05:24,726 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-11-02 23:05:24,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:05:24,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-02 23:05:24,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:05:25,615 INFO L134 CoverageAnalysis]: Checked inductivity of 9027 backedges. 0 proven. 9027 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:25,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367343688] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:25,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:05:25,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-11-02 23:05:25,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219319512] [2021-11-02 23:05:25,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-02 23:05:25,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:25,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-02 23:05:25,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-02 23:05:25,617 INFO L87 Difference]: Start difference. First operand 365 states and 365 transitions. Second operand has 54 states, 53 states have (on average 6.7924528301886795) internal successors, (360), 53 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:25,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:25,742 INFO L93 Difference]: Finished difference Result 371 states and 371 transitions. [2021-11-02 23:05:25,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-02 23:05:25,742 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 6.7924528301886795) internal successors, (360), 53 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-11-02 23:05:25,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:25,743 INFO L225 Difference]: With dead ends: 371 [2021-11-02 23:05:25,743 INFO L226 Difference]: Without dead ends: 370 [2021-11-02 23:05:25,743 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 359 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-02 23:05:25,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2021-11-02 23:05:25,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 369. [2021-11-02 23:05:25,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 367 states have (on average 1.005449591280654) internal successors, (369), 368 states have internal predecessors, (369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 369 transitions. [2021-11-02 23:05:25,749 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 369 transitions. Word has length 360 [2021-11-02 23:05:25,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:25,750 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 369 transitions. [2021-11-02 23:05:25,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 6.7924528301886795) internal successors, (360), 53 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 369 transitions. [2021-11-02 23:05:25,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-11-02 23:05:25,752 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:25,752 INFO L513 BasicCegarLoop]: trace histogram [52, 52, 52, 52, 51, 51, 51, 1, 1] [2021-11-02 23:05:25,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Ended with exit code 0 [2021-11-02 23:05:25,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 102 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable106 [2021-11-02 23:05:25,956 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:05:25,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:25,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1629533923, now seen corresponding path program 51 times [2021-11-02 23:05:25,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:25,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912371296] [2021-11-02 23:05:25,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:25,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:26,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:27,155 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:27,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:27,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912371296] [2021-11-02 23:05:27,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912371296] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:27,155 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101719463] [2021-11-02 23:05:27,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:05:27,156 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:27,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:05:27,156 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:05:27,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2021-11-02 23:05:33,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-11-02 23:05:33,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:05:33,869 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-02 23:05:33,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:05:34,831 INFO L134 CoverageAnalysis]: Checked inductivity of 9180 backedges. 0 proven. 9180 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:34,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101719463] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:34,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:05:34,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-11-02 23:05:34,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223561223] [2021-11-02 23:05:34,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-11-02 23:05:34,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:34,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-11-02 23:05:34,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-02 23:05:34,833 INFO L87 Difference]: Start difference. First operand 369 states and 369 transitions. Second operand has 54 states, 53 states have (on average 6.849056603773585) internal successors, (363), 53 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:35,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:35,008 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2021-11-02 23:05:35,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-11-02 23:05:35,009 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 6.849056603773585) internal successors, (363), 53 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2021-11-02 23:05:35,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:35,010 INFO L225 Difference]: With dead ends: 373 [2021-11-02 23:05:35,010 INFO L226 Difference]: Without dead ends: 372 [2021-11-02 23:05:35,010 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 362 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-11-02 23:05:35,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-02 23:05:35,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-11-02 23:05:35,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 370 states have (on average 1.0054054054054054) internal successors, (372), 371 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:35,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 372 transitions. [2021-11-02 23:05:35,015 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 372 transitions. Word has length 363 [2021-11-02 23:05:35,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:35,015 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 372 transitions. [2021-11-02 23:05:35,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 6.849056603773585) internal successors, (363), 53 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:35,015 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 372 transitions. [2021-11-02 23:05:35,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2021-11-02 23:05:35,017 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:35,017 INFO L513 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 52, 52, 1, 1] [2021-11-02 23:05:35,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Ended with exit code 0 [2021-11-02 23:05:35,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107,103 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:35,220 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:05:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash 499316065, now seen corresponding path program 52 times [2021-11-02 23:05:35,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:35,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002095009] [2021-11-02 23:05:35,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:35,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:35,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:36,651 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 0 proven. 9386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:36,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:36,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002095009] [2021-11-02 23:05:36,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002095009] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:36,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921617163] [2021-11-02 23:05:36,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:05:36,652 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:36,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:05:36,653 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:05:36,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Waiting until timeout for monitored process [2021-11-02 23:05:43,763 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:05:43,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:05:43,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-02 23:05:43,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:05:44,920 INFO L134 CoverageAnalysis]: Checked inductivity of 9386 backedges. 0 proven. 9386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:44,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921617163] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:44,921 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:05:44,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-11-02 23:05:44,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94389883] [2021-11-02 23:05:44,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-02 23:05:44,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:44,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-02 23:05:44,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-02 23:05:44,923 INFO L87 Difference]: Start difference. First operand 372 states and 372 transitions. Second operand has 55 states, 54 states have (on average 6.796296296296297) internal successors, (367), 54 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:45,106 INFO L93 Difference]: Finished difference Result 378 states and 378 transitions. [2021-11-02 23:05:45,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-02 23:05:45,107 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 6.796296296296297) internal successors, (367), 54 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 367 [2021-11-02 23:05:45,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:45,108 INFO L225 Difference]: With dead ends: 378 [2021-11-02 23:05:45,108 INFO L226 Difference]: Without dead ends: 377 [2021-11-02 23:05:45,108 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-02 23:05:45,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-02 23:05:45,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 376. [2021-11-02 23:05:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 374 states have (on average 1.0053475935828877) internal successors, (376), 375 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:45,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 376 transitions. [2021-11-02 23:05:45,116 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 376 transitions. Word has length 367 [2021-11-02 23:05:45,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:45,116 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 376 transitions. [2021-11-02 23:05:45,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 6.796296296296297) internal successors, (367), 54 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:45,116 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 376 transitions. [2021-11-02 23:05:45,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-11-02 23:05:45,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:45,119 INFO L513 BasicCegarLoop]: trace histogram [53, 53, 53, 53, 52, 52, 52, 1, 1] [2021-11-02 23:05:45,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (104)] Ended with exit code 0 [2021-11-02 23:05:45,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 104 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable108 [2021-11-02 23:05:45,320 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:05:45,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:45,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1653190125, now seen corresponding path program 52 times [2021-11-02 23:05:45,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:45,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024569201] [2021-11-02 23:05:45,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:45,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:45,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:46,694 INFO L134 CoverageAnalysis]: Checked inductivity of 9542 backedges. 0 proven. 9542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:46,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:46,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024569201] [2021-11-02 23:05:46,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024569201] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:46,694 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103823781] [2021-11-02 23:05:46,694 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:05:46,695 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:46,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:05:46,695 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:05:46,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Waiting until timeout for monitored process [2021-11-02 23:05:53,604 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:05:53,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:05:53,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 693 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-02 23:05:53,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:05:54,869 INFO L134 CoverageAnalysis]: Checked inductivity of 9542 backedges. 0 proven. 9542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:54,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103823781] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:54,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:05:54,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-11-02 23:05:54,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206940096] [2021-11-02 23:05:54,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-02 23:05:54,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:05:54,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-02 23:05:54,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-02 23:05:54,871 INFO L87 Difference]: Start difference. First operand 376 states and 376 transitions. Second operand has 55 states, 54 states have (on average 6.851851851851852) internal successors, (370), 54 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:55,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:05:55,038 INFO L93 Difference]: Finished difference Result 380 states and 380 transitions. [2021-11-02 23:05:55,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-02 23:05:55,039 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 6.851851851851852) internal successors, (370), 54 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 370 [2021-11-02 23:05:55,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:05:55,040 INFO L225 Difference]: With dead ends: 380 [2021-11-02 23:05:55,040 INFO L226 Difference]: Without dead ends: 379 [2021-11-02 23:05:55,040 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-11-02 23:05:55,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2021-11-02 23:05:55,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 379. [2021-11-02 23:05:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 379 states, 377 states have (on average 1.0053050397877985) internal successors, (379), 378 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:55,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 379 states and 379 transitions. [2021-11-02 23:05:55,045 INFO L78 Accepts]: Start accepts. Automaton has 379 states and 379 transitions. Word has length 370 [2021-11-02 23:05:55,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:05:55,046 INFO L470 AbstractCegarLoop]: Abstraction has 379 states and 379 transitions. [2021-11-02 23:05:55,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 6.851851851851852) internal successors, (370), 54 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:05:55,046 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 379 transitions. [2021-11-02 23:05:55,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-11-02 23:05:55,048 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:05:55,048 INFO L513 BasicCegarLoop]: trace histogram [54, 53, 53, 53, 53, 53, 53, 1, 1] [2021-11-02 23:05:55,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (105)] Ended with exit code 0 [2021-11-02 23:05:55,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109,105 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:55,248 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:05:55,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:05:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1995541967, now seen corresponding path program 53 times [2021-11-02 23:05:55,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:05:55,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584055488] [2021-11-02 23:05:55,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:05:55,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:05:55,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:05:56,653 INFO L134 CoverageAnalysis]: Checked inductivity of 9752 backedges. 0 proven. 9752 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:05:56,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:05:56,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584055488] [2021-11-02 23:05:56,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584055488] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:05:56,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684991184] [2021-11-02 23:05:56,654 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:05:56,654 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:05:56,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:05:56,655 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:05:56,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Waiting until timeout for monitored process [2021-11-02 23:06:03,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-11-02 23:06:03,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:06:03,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-02 23:06:03,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9752 backedges. 0 proven. 9752 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:04,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684991184] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:04,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:04,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-11-02 23:06:04,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791111250] [2021-11-02 23:06:04,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-02 23:06:04,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:04,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-02 23:06:04,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-02 23:06:04,913 INFO L87 Difference]: Start difference. First operand 379 states and 379 transitions. Second operand has 56 states, 55 states have (on average 6.8) internal successors, (374), 55 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:05,082 INFO L93 Difference]: Finished difference Result 385 states and 385 transitions. [2021-11-02 23:06:05,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-02 23:06:05,082 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 6.8) internal successors, (374), 55 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 374 [2021-11-02 23:06:05,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:05,083 INFO L225 Difference]: With dead ends: 385 [2021-11-02 23:06:05,083 INFO L226 Difference]: Without dead ends: 384 [2021-11-02 23:06:05,084 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 373 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-02 23:06:05,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-02 23:06:05,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 383. [2021-11-02 23:06:05,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383 states, 381 states have (on average 1.005249343832021) internal successors, (383), 382 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:05,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 383 states and 383 transitions. [2021-11-02 23:06:05,089 INFO L78 Accepts]: Start accepts. Automaton has 383 states and 383 transitions. Word has length 374 [2021-11-02 23:06:05,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:05,090 INFO L470 AbstractCegarLoop]: Abstraction has 383 states and 383 transitions. [2021-11-02 23:06:05,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 6.8) internal successors, (374), 55 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:05,090 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 383 transitions. [2021-11-02 23:06:05,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-02 23:06:05,092 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:05,092 INFO L513 BasicCegarLoop]: trace histogram [54, 54, 54, 54, 53, 53, 53, 1, 1] [2021-11-02 23:06:05,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (106)] Ended with exit code 0 [2021-11-02 23:06:05,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110,106 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:05,293 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:06:05,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:05,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1746616093, now seen corresponding path program 53 times [2021-11-02 23:06:05,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:05,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153112590] [2021-11-02 23:06:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:05,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:05,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:06,703 INFO L134 CoverageAnalysis]: Checked inductivity of 9911 backedges. 0 proven. 9911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:06,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:06,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153112590] [2021-11-02 23:06:06,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153112590] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:06,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603291965] [2021-11-02 23:06:06,704 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:06:06,704 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:06,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:06,705 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:06,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Waiting until timeout for monitored process [2021-11-02 23:06:13,952 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-11-02 23:06:13,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:06:13,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 706 conjuncts, 55 conjunts are in the unsatisfiable core [2021-11-02 23:06:13,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:15,271 INFO L134 CoverageAnalysis]: Checked inductivity of 9911 backedges. 0 proven. 9911 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:15,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603291965] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:15,271 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:15,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-11-02 23:06:15,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978909708] [2021-11-02 23:06:15,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-11-02 23:06:15,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:15,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-11-02 23:06:15,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-02 23:06:15,273 INFO L87 Difference]: Start difference. First operand 383 states and 383 transitions. Second operand has 56 states, 55 states have (on average 6.8545454545454545) internal successors, (377), 55 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:15,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:15,439 INFO L93 Difference]: Finished difference Result 387 states and 387 transitions. [2021-11-02 23:06:15,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-11-02 23:06:15,440 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 6.8545454545454545) internal successors, (377), 55 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2021-11-02 23:06:15,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:15,441 INFO L225 Difference]: With dead ends: 387 [2021-11-02 23:06:15,441 INFO L226 Difference]: Without dead ends: 386 [2021-11-02 23:06:15,442 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 376 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-11-02 23:06:15,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2021-11-02 23:06:15,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 386. [2021-11-02 23:06:15,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 384 states have (on average 1.0052083333333333) internal successors, (386), 385 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 386 transitions. [2021-11-02 23:06:15,447 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 386 transitions. Word has length 377 [2021-11-02 23:06:15,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:15,447 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 386 transitions. [2021-11-02 23:06:15,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 6.8545454545454545) internal successors, (377), 55 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:15,448 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 386 transitions. [2021-11-02 23:06:15,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2021-11-02 23:06:15,449 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:15,449 INFO L513 BasicCegarLoop]: trace histogram [55, 54, 54, 54, 54, 54, 54, 1, 1] [2021-11-02 23:06:15,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (107)] Ended with exit code 0 [2021-11-02 23:06:15,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 107 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable111 [2021-11-02 23:06:15,652 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:06:15,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:15,652 INFO L85 PathProgramCache]: Analyzing trace with hash 1544809313, now seen corresponding path program 54 times [2021-11-02 23:06:15,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:15,652 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176036954] [2021-11-02 23:06:15,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:15,653 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:17,242 INFO L134 CoverageAnalysis]: Checked inductivity of 10125 backedges. 0 proven. 10125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:17,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:17,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176036954] [2021-11-02 23:06:17,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176036954] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:17,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18157000] [2021-11-02 23:06:17,243 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:06:17,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:17,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:17,244 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:17,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Waiting until timeout for monitored process [2021-11-02 23:06:24,457 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-11-02 23:06:24,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:06:24,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-02 23:06:24,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:25,676 INFO L134 CoverageAnalysis]: Checked inductivity of 10125 backedges. 0 proven. 10125 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:25,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18157000] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:25,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:25,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-11-02 23:06:25,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56841677] [2021-11-02 23:06:25,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-02 23:06:25,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:25,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-02 23:06:25,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-02 23:06:25,678 INFO L87 Difference]: Start difference. First operand 386 states and 386 transitions. Second operand has 57 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:25,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:25,852 INFO L93 Difference]: Finished difference Result 392 states and 392 transitions. [2021-11-02 23:06:25,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-02 23:06:25,853 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 381 [2021-11-02 23:06:25,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:25,854 INFO L225 Difference]: With dead ends: 392 [2021-11-02 23:06:25,854 INFO L226 Difference]: Without dead ends: 391 [2021-11-02 23:06:25,854 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-02 23:06:25,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states. [2021-11-02 23:06:25,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 390. [2021-11-02 23:06:25,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 388 states have (on average 1.0051546391752577) internal successors, (390), 389 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:25,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 390 transitions. [2021-11-02 23:06:25,860 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 390 transitions. Word has length 381 [2021-11-02 23:06:25,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:25,860 INFO L470 AbstractCegarLoop]: Abstraction has 390 states and 390 transitions. [2021-11-02 23:06:25,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 6.803571428571429) internal successors, (381), 56 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:25,860 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 390 transitions. [2021-11-02 23:06:25,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2021-11-02 23:06:25,862 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:25,862 INFO L513 BasicCegarLoop]: trace histogram [55, 55, 55, 55, 54, 54, 54, 1, 1] [2021-11-02 23:06:25,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (108)] Forceful destruction successful, exit code 0 [2021-11-02 23:06:26,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112,108 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:26,063 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:06:26,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:26,063 INFO L85 PathProgramCache]: Analyzing trace with hash 839710701, now seen corresponding path program 54 times [2021-11-02 23:06:26,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:26,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047467837] [2021-11-02 23:06:26,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:26,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10287 backedges. 0 proven. 10287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:27,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:27,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047467837] [2021-11-02 23:06:27,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047467837] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:27,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921705199] [2021-11-02 23:06:27,562 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:06:27,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:27,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:27,563 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:27,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Waiting until timeout for monitored process [2021-11-02 23:06:34,929 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-11-02 23:06:34,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:06:34,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-02 23:06:34,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:36,049 INFO L134 CoverageAnalysis]: Checked inductivity of 10287 backedges. 0 proven. 10287 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:36,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921705199] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:36,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:36,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-11-02 23:06:36,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110544702] [2021-11-02 23:06:36,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-02 23:06:36,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:36,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-02 23:06:36,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-02 23:06:36,051 INFO L87 Difference]: Start difference. First operand 390 states and 390 transitions. Second operand has 57 states, 56 states have (on average 6.857142857142857) internal successors, (384), 56 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:36,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:36,209 INFO L93 Difference]: Finished difference Result 394 states and 394 transitions. [2021-11-02 23:06:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-02 23:06:36,210 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 6.857142857142857) internal successors, (384), 56 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2021-11-02 23:06:36,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:36,211 INFO L225 Difference]: With dead ends: 394 [2021-11-02 23:06:36,211 INFO L226 Difference]: Without dead ends: 393 [2021-11-02 23:06:36,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-11-02 23:06:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2021-11-02 23:06:36,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 393. [2021-11-02 23:06:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 391 states have (on average 1.0051150895140666) internal successors, (393), 392 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:36,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 393 transitions. [2021-11-02 23:06:36,216 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 393 transitions. Word has length 384 [2021-11-02 23:06:36,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:36,217 INFO L470 AbstractCegarLoop]: Abstraction has 393 states and 393 transitions. [2021-11-02 23:06:36,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 6.857142857142857) internal successors, (384), 56 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 393 transitions. [2021-11-02 23:06:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-11-02 23:06:36,218 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:36,219 INFO L513 BasicCegarLoop]: trace histogram [56, 55, 55, 55, 55, 55, 55, 1, 1] [2021-11-02 23:06:36,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (109)] Ended with exit code 0 [2021-11-02 23:06:36,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113,109 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:36,419 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:06:36,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:36,420 INFO L85 PathProgramCache]: Analyzing trace with hash -237192143, now seen corresponding path program 55 times [2021-11-02 23:06:36,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:36,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343954413] [2021-11-02 23:06:36,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:36,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:36,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 10505 backedges. 0 proven. 10505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:37,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:37,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343954413] [2021-11-02 23:06:37,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343954413] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:37,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279783999] [2021-11-02 23:06:37,880 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:06:37,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:37,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:37,881 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:37,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Waiting until timeout for monitored process [2021-11-02 23:06:45,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:45,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-02 23:06:45,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 10505 backedges. 0 proven. 10505 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:46,624 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279783999] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:46,624 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:46,624 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-11-02 23:06:46,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802704949] [2021-11-02 23:06:46,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-02 23:06:46,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:46,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-02 23:06:46,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-02 23:06:46,626 INFO L87 Difference]: Start difference. First operand 393 states and 393 transitions. Second operand has 58 states, 57 states have (on average 6.807017543859649) internal successors, (388), 57 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:46,777 INFO L93 Difference]: Finished difference Result 399 states and 399 transitions. [2021-11-02 23:06:46,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-02 23:06:46,777 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 6.807017543859649) internal successors, (388), 57 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 388 [2021-11-02 23:06:46,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:46,778 INFO L225 Difference]: With dead ends: 399 [2021-11-02 23:06:46,778 INFO L226 Difference]: Without dead ends: 398 [2021-11-02 23:06:46,779 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-02 23:06:46,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-02 23:06:46,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 397. [2021-11-02 23:06:46,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 395 states have (on average 1.0050632911392405) internal successors, (397), 396 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:46,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 397 transitions. [2021-11-02 23:06:46,784 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 397 transitions. Word has length 388 [2021-11-02 23:06:46,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:46,784 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 397 transitions. [2021-11-02 23:06:46,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 6.807017543859649) internal successors, (388), 57 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:46,784 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 397 transitions. [2021-11-02 23:06:46,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2021-11-02 23:06:46,786 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:46,786 INFO L513 BasicCegarLoop]: trace histogram [56, 56, 56, 56, 55, 55, 55, 1, 1] [2021-11-02 23:06:46,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (110)] Ended with exit code 0 [2021-11-02 23:06:46,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 110 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable114 [2021-11-02 23:06:46,987 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:06:46,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:46,987 INFO L85 PathProgramCache]: Analyzing trace with hash -969886435, now seen corresponding path program 55 times [2021-11-02 23:06:46,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:46,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294709889] [2021-11-02 23:06:46,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:46,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:47,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10670 backedges. 0 proven. 10670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:48,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:48,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294709889] [2021-11-02 23:06:48,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294709889] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:48,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432188069] [2021-11-02 23:06:48,606 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:06:48,606 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:48,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:48,607 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:48,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Waiting until timeout for monitored process [2021-11-02 23:06:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:56,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-02 23:06:56,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:06:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 10670 backedges. 0 proven. 10670 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:57,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432188069] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:57,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:06:57,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-11-02 23:06:57,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637844037] [2021-11-02 23:06:57,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-11-02 23:06:57,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:06:57,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-11-02 23:06:57,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-02 23:06:57,768 INFO L87 Difference]: Start difference. First operand 397 states and 397 transitions. Second operand has 58 states, 57 states have (on average 6.859649122807017) internal successors, (391), 57 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:57,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:06:57,984 INFO L93 Difference]: Finished difference Result 401 states and 401 transitions. [2021-11-02 23:06:57,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-11-02 23:06:57,985 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 6.859649122807017) internal successors, (391), 57 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2021-11-02 23:06:57,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:06:57,987 INFO L225 Difference]: With dead ends: 401 [2021-11-02 23:06:57,987 INFO L226 Difference]: Without dead ends: 400 [2021-11-02 23:06:57,988 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-11-02 23:06:57,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2021-11-02 23:06:57,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2021-11-02 23:06:57,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 398 states have (on average 1.0050251256281406) internal successors, (400), 399 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:57,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 400 transitions. [2021-11-02 23:06:57,999 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 400 transitions. Word has length 391 [2021-11-02 23:06:58,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:06:58,002 INFO L470 AbstractCegarLoop]: Abstraction has 400 states and 400 transitions. [2021-11-02 23:06:58,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 6.859649122807017) internal successors, (391), 57 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:06:58,002 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 400 transitions. [2021-11-02 23:06:58,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-11-02 23:06:58,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:06:58,005 INFO L513 BasicCegarLoop]: trace histogram [57, 56, 56, 56, 56, 56, 56, 1, 1] [2021-11-02 23:06:58,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (111)] Forceful destruction successful, exit code 0 [2021-11-02 23:06:58,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115,111 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:58,220 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:06:58,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:06:58,220 INFO L85 PathProgramCache]: Analyzing trace with hash 645816673, now seen corresponding path program 56 times [2021-11-02 23:06:58,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:06:58,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530372472] [2021-11-02 23:06:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:06:58,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:06:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:06:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 10892 backedges. 0 proven. 10892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:06:59,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:06:59,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530372472] [2021-11-02 23:06:59,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530372472] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:06:59,577 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [688987938] [2021-11-02 23:06:59,577 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:06:59,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:06:59,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:06:59,578 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:06:59,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Waiting until timeout for monitored process [2021-11-02 23:07:07,699 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:07:07,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:07,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-02 23:07:07,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:08,860 INFO L134 CoverageAnalysis]: Checked inductivity of 10892 backedges. 0 proven. 10892 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:08,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [688987938] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:08,860 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:08,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-11-02 23:07:08,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391772962] [2021-11-02 23:07:08,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-02 23:07:08,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:08,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-02 23:07:08,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-02 23:07:08,862 INFO L87 Difference]: Start difference. First operand 400 states and 400 transitions. Second operand has 59 states, 58 states have (on average 6.810344827586207) internal successors, (395), 58 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:09,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:09,041 INFO L93 Difference]: Finished difference Result 406 states and 406 transitions. [2021-11-02 23:07:09,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-02 23:07:09,042 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 6.810344827586207) internal successors, (395), 58 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2021-11-02 23:07:09,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:09,043 INFO L225 Difference]: With dead ends: 406 [2021-11-02 23:07:09,043 INFO L226 Difference]: Without dead ends: 405 [2021-11-02 23:07:09,043 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 394 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-02 23:07:09,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2021-11-02 23:07:09,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 404. [2021-11-02 23:07:09,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 402 states have (on average 1.0049751243781095) internal successors, (404), 403 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:09,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 404 transitions. [2021-11-02 23:07:09,049 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 404 transitions. Word has length 395 [2021-11-02 23:07:09,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:09,050 INFO L470 AbstractCegarLoop]: Abstraction has 404 states and 404 transitions. [2021-11-02 23:07:09,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 6.810344827586207) internal successors, (395), 58 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:09,050 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 404 transitions. [2021-11-02 23:07:09,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2021-11-02 23:07:09,052 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:09,052 INFO L513 BasicCegarLoop]: trace histogram [57, 57, 57, 57, 56, 56, 56, 1, 1] [2021-11-02 23:07:09,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (112)] Forceful destruction successful, exit code 0 [2021-11-02 23:07:09,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116,112 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:09,253 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:07:09,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1928936979, now seen corresponding path program 56 times [2021-11-02 23:07:09,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:09,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883300385] [2021-11-02 23:07:09,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:09,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:09,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 11060 backedges. 0 proven. 11060 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:11,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:11,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883300385] [2021-11-02 23:07:11,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883300385] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:11,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595029026] [2021-11-02 23:07:11,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:07:11,018 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:11,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:11,019 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:11,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Waiting until timeout for monitored process [2021-11-02 23:07:18,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:07:18,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:18,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-02 23:07:18,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:19,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11060 backedges. 0 proven. 11060 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:19,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595029026] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:19,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:19,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-11-02 23:07:19,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554573398] [2021-11-02 23:07:19,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-02 23:07:19,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:19,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-02 23:07:19,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-02 23:07:19,979 INFO L87 Difference]: Start difference. First operand 404 states and 404 transitions. Second operand has 59 states, 58 states have (on average 6.862068965517241) internal successors, (398), 58 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:20,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:20,159 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2021-11-02 23:07:20,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-02 23:07:20,159 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 6.862068965517241) internal successors, (398), 58 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 398 [2021-11-02 23:07:20,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:20,160 INFO L225 Difference]: With dead ends: 408 [2021-11-02 23:07:20,160 INFO L226 Difference]: Without dead ends: 407 [2021-11-02 23:07:20,161 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 454 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-11-02 23:07:20,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-11-02 23:07:20,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 407. [2021-11-02 23:07:20,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 405 states have (on average 1.0049382716049382) internal successors, (407), 406 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:20,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 407 transitions. [2021-11-02 23:07:20,166 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 407 transitions. Word has length 398 [2021-11-02 23:07:20,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:20,167 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 407 transitions. [2021-11-02 23:07:20,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 6.862068965517241) internal successors, (398), 58 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:20,167 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 407 transitions. [2021-11-02 23:07:20,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2021-11-02 23:07:20,169 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:20,169 INFO L513 BasicCegarLoop]: trace histogram [58, 57, 57, 57, 57, 57, 57, 1, 1] [2021-11-02 23:07:20,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (113)] Forceful destruction successful, exit code 0 [2021-11-02 23:07:20,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 113 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable117 [2021-11-02 23:07:20,370 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:07:20,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:20,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1189185073, now seen corresponding path program 57 times [2021-11-02 23:07:20,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:20,371 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910530452] [2021-11-02 23:07:20,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:20,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:20,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 11286 backedges. 0 proven. 11286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:21,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:21,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910530452] [2021-11-02 23:07:21,940 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910530452] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:21,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100993205] [2021-11-02 23:07:21,940 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:07:21,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:21,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:21,941 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:21,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Waiting until timeout for monitored process [2021-11-02 23:07:29,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-11-02 23:07:29,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:29,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-02 23:07:29,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:31,199 INFO L134 CoverageAnalysis]: Checked inductivity of 11286 backedges. 0 proven. 11286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:31,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100993205] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:31,199 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:31,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-11-02 23:07:31,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106772663] [2021-11-02 23:07:31,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-11-02 23:07:31,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:31,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-11-02 23:07:31,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-02 23:07:31,201 INFO L87 Difference]: Start difference. First operand 407 states and 407 transitions. Second operand has 60 states, 59 states have (on average 6.813559322033898) internal successors, (402), 59 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:31,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:31,370 INFO L93 Difference]: Finished difference Result 413 states and 413 transitions. [2021-11-02 23:07:31,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-02 23:07:31,370 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 6.813559322033898) internal successors, (402), 59 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 402 [2021-11-02 23:07:31,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:31,371 INFO L225 Difference]: With dead ends: 413 [2021-11-02 23:07:31,371 INFO L226 Difference]: Without dead ends: 412 [2021-11-02 23:07:31,372 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-02 23:07:31,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-02 23:07:31,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2021-11-02 23:07:31,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 409 states have (on average 1.0048899755501222) internal successors, (411), 410 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:31,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 411 transitions. [2021-11-02 23:07:31,378 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 411 transitions. Word has length 402 [2021-11-02 23:07:31,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:31,379 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 411 transitions. [2021-11-02 23:07:31,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 6.813559322033898) internal successors, (402), 59 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 411 transitions. [2021-11-02 23:07:31,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2021-11-02 23:07:31,382 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:31,382 INFO L513 BasicCegarLoop]: trace histogram [58, 58, 58, 58, 57, 57, 57, 1, 1] [2021-11-02 23:07:31,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (114)] Forceful destruction successful, exit code 0 [2021-11-02 23:07:31,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 114 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable118 [2021-11-02 23:07:31,608 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:07:31,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:31,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2122296093, now seen corresponding path program 57 times [2021-11-02 23:07:31,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:31,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082591174] [2021-11-02 23:07:31,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:31,609 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 11457 backedges. 0 proven. 11457 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:33,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:33,203 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082591174] [2021-11-02 23:07:33,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082591174] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:33,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [509666777] [2021-11-02 23:07:33,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:07:33,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:33,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:33,205 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:33,371 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Waiting until timeout for monitored process [2021-11-02 23:07:41,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-11-02 23:07:41,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:41,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 59 conjunts are in the unsatisfiable core [2021-11-02 23:07:41,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:42,817 INFO L134 CoverageAnalysis]: Checked inductivity of 11457 backedges. 0 proven. 11457 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:42,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [509666777] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:42,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:42,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-11-02 23:07:42,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26707655] [2021-11-02 23:07:42,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-11-02 23:07:42,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:42,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-11-02 23:07:42,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-02 23:07:42,819 INFO L87 Difference]: Start difference. First operand 411 states and 411 transitions. Second operand has 60 states, 59 states have (on average 6.864406779661017) internal successors, (405), 59 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:42,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:42,995 INFO L93 Difference]: Finished difference Result 415 states and 415 transitions. [2021-11-02 23:07:42,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-11-02 23:07:42,996 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 6.864406779661017) internal successors, (405), 59 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2021-11-02 23:07:42,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:42,996 INFO L225 Difference]: With dead ends: 415 [2021-11-02 23:07:42,997 INFO L226 Difference]: Without dead ends: 414 [2021-11-02 23:07:42,997 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-11-02 23:07:42,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-02 23:07:43,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 414. [2021-11-02 23:07:43,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 412 states have (on average 1.0048543689320388) internal successors, (414), 413 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:43,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 414 transitions. [2021-11-02 23:07:43,002 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 414 transitions. Word has length 405 [2021-11-02 23:07:43,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:43,003 INFO L470 AbstractCegarLoop]: Abstraction has 414 states and 414 transitions. [2021-11-02 23:07:43,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 6.864406779661017) internal successors, (405), 59 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:43,003 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 414 transitions. [2021-11-02 23:07:43,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-02 23:07:43,005 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:43,005 INFO L513 BasicCegarLoop]: trace histogram [59, 58, 58, 58, 58, 58, 58, 1, 1] [2021-11-02 23:07:43,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (115)] Forceful destruction successful, exit code 0 [2021-11-02 23:07:43,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119,115 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:43,206 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:07:43,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1839048863, now seen corresponding path program 58 times [2021-11-02 23:07:43,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:43,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747706978] [2021-11-02 23:07:43,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:43,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:44,776 INFO L134 CoverageAnalysis]: Checked inductivity of 11687 backedges. 0 proven. 11687 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:44,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:44,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747706978] [2021-11-02 23:07:44,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747706978] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:44,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [728511430] [2021-11-02 23:07:44,777 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:07:44,777 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:44,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:44,777 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:44,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Waiting until timeout for monitored process [2021-11-02 23:07:52,627 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:07:52,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:07:52,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-02 23:07:52,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:07:53,808 INFO L134 CoverageAnalysis]: Checked inductivity of 11687 backedges. 0 proven. 11687 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:53,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [728511430] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:53,809 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:07:53,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-11-02 23:07:53,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083594783] [2021-11-02 23:07:53,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-11-02 23:07:53,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:07:53,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-11-02 23:07:53,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-02 23:07:53,811 INFO L87 Difference]: Start difference. First operand 414 states and 414 transitions. Second operand has 61 states, 60 states have (on average 6.816666666666666) internal successors, (409), 60 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:53,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:07:53,994 INFO L93 Difference]: Finished difference Result 420 states and 420 transitions. [2021-11-02 23:07:53,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-02 23:07:53,994 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 6.816666666666666) internal successors, (409), 60 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2021-11-02 23:07:53,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:07:53,995 INFO L225 Difference]: With dead ends: 420 [2021-11-02 23:07:53,995 INFO L226 Difference]: Without dead ends: 419 [2021-11-02 23:07:53,996 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-02 23:07:53,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2021-11-02 23:07:54,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 418. [2021-11-02 23:07:54,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 416 states have (on average 1.0048076923076923) internal successors, (418), 417 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:54,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 418 transitions. [2021-11-02 23:07:54,002 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 418 transitions. Word has length 409 [2021-11-02 23:07:54,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:07:54,002 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 418 transitions. [2021-11-02 23:07:54,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 6.816666666666666) internal successors, (409), 60 states have internal predecessors, (409), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:07:54,003 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 418 transitions. [2021-11-02 23:07:54,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2021-11-02 23:07:54,006 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:07:54,006 INFO L513 BasicCegarLoop]: trace histogram [59, 59, 59, 59, 58, 58, 58, 1, 1] [2021-11-02 23:07:54,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (116)] Forceful destruction successful, exit code 0 [2021-11-02 23:07:54,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120,116 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:54,232 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:07:54,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:07:54,232 INFO L85 PathProgramCache]: Analyzing trace with hash -501806099, now seen corresponding path program 58 times [2021-11-02 23:07:54,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:07:54,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085386015] [2021-11-02 23:07:54,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:07:54,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:07:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:07:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 11861 backedges. 0 proven. 11861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:07:56,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:07:56,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085386015] [2021-11-02 23:07:56,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085386015] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:07:56,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588536893] [2021-11-02 23:07:56,004 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:07:56,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:07:56,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:07:56,004 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:07:56,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Waiting until timeout for monitored process [2021-11-02 23:08:04,079 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-02 23:08:04,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:08:04,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-02 23:08:04,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 11861 backedges. 0 proven. 11861 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:05,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588536893] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:05,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:08:05,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-11-02 23:08:05,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311418359] [2021-11-02 23:08:05,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-11-02 23:08:05,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:05,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-11-02 23:08:05,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-02 23:08:05,212 INFO L87 Difference]: Start difference. First operand 418 states and 418 transitions. Second operand has 61 states, 60 states have (on average 6.866666666666666) internal successors, (412), 60 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:05,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:05,391 INFO L93 Difference]: Finished difference Result 422 states and 422 transitions. [2021-11-02 23:08:05,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-02 23:08:05,392 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 6.866666666666666) internal successors, (412), 60 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 412 [2021-11-02 23:08:05,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:05,393 INFO L225 Difference]: With dead ends: 422 [2021-11-02 23:08:05,393 INFO L226 Difference]: Without dead ends: 421 [2021-11-02 23:08:05,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 411 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-11-02 23:08:05,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-11-02 23:08:05,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-11-02 23:08:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 419 states have (on average 1.0047732696897376) internal successors, (421), 420 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:05,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 421 transitions. [2021-11-02 23:08:05,399 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 421 transitions. Word has length 412 [2021-11-02 23:08:05,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:05,399 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 421 transitions. [2021-11-02 23:08:05,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 6.866666666666666) internal successors, (412), 60 states have internal predecessors, (412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:05,399 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 421 transitions. [2021-11-02 23:08:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2021-11-02 23:08:05,401 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:05,401 INFO L513 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 59, 59, 1, 1] [2021-11-02 23:08:05,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (117)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:05,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121,117 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:05,602 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:08:05,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:05,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1497575375, now seen corresponding path program 59 times [2021-11-02 23:08:05,602 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:05,602 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935935844] [2021-11-02 23:08:05,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:05,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:05,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:07,275 INFO L134 CoverageAnalysis]: Checked inductivity of 12095 backedges. 0 proven. 12095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:07,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:07,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935935844] [2021-11-02 23:08:07,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935935844] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:07,276 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936729833] [2021-11-02 23:08:07,276 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:08:07,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:07,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:07,277 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:08:07,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Waiting until timeout for monitored process [2021-11-02 23:08:15,683 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-11-02 23:08:15,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:08:15,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-02 23:08:15,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:16,917 INFO L134 CoverageAnalysis]: Checked inductivity of 12095 backedges. 0 proven. 12095 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:16,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936729833] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:16,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:08:16,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-11-02 23:08:16,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884850439] [2021-11-02 23:08:16,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-02 23:08:16,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:16,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-02 23:08:16,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-02 23:08:16,919 INFO L87 Difference]: Start difference. First operand 421 states and 421 transitions. Second operand has 62 states, 61 states have (on average 6.819672131147541) internal successors, (416), 61 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:17,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:17,101 INFO L93 Difference]: Finished difference Result 427 states and 427 transitions. [2021-11-02 23:08:17,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-02 23:08:17,101 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 6.819672131147541) internal successors, (416), 61 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 416 [2021-11-02 23:08:17,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:17,105 INFO L225 Difference]: With dead ends: 427 [2021-11-02 23:08:17,105 INFO L226 Difference]: Without dead ends: 426 [2021-11-02 23:08:17,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-02 23:08:17,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2021-11-02 23:08:17,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 425. [2021-11-02 23:08:17,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 423 states have (on average 1.0047281323877069) internal successors, (425), 424 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 425 transitions. [2021-11-02 23:08:17,112 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 425 transitions. Word has length 416 [2021-11-02 23:08:17,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:17,112 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 425 transitions. [2021-11-02 23:08:17,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 6.819672131147541) internal successors, (416), 61 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 425 transitions. [2021-11-02 23:08:17,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-11-02 23:08:17,114 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:17,114 INFO L513 BasicCegarLoop]: trace histogram [60, 60, 60, 60, 59, 59, 59, 1, 1] [2021-11-02 23:08:17,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (118)] Ended with exit code 0 [2021-11-02 23:08:17,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 118 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122 [2021-11-02 23:08:17,315 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:08:17,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:17,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1852317981, now seen corresponding path program 59 times [2021-11-02 23:08:17,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:17,315 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461099092] [2021-11-02 23:08:17,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:17,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:17,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:19,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12272 backedges. 0 proven. 12272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:19,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:19,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461099092] [2021-11-02 23:08:19,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461099092] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:19,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296184697] [2021-11-02 23:08:19,348 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-02 23:08:19,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:19,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:19,349 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:08:19,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Waiting until timeout for monitored process [2021-11-02 23:08:28,002 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-11-02 23:08:28,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:08:28,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 61 conjunts are in the unsatisfiable core [2021-11-02 23:08:28,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12272 backedges. 0 proven. 12272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:29,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296184697] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:29,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:08:29,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-11-02 23:08:29,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842454739] [2021-11-02 23:08:29,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-11-02 23:08:29,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:29,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-11-02 23:08:29,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-02 23:08:29,215 INFO L87 Difference]: Start difference. First operand 425 states and 425 transitions. Second operand has 62 states, 61 states have (on average 6.868852459016393) internal successors, (419), 61 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:29,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:29,420 INFO L93 Difference]: Finished difference Result 429 states and 429 transitions. [2021-11-02 23:08:29,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-11-02 23:08:29,421 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 6.868852459016393) internal successors, (419), 61 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 419 [2021-11-02 23:08:29,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:29,422 INFO L225 Difference]: With dead ends: 429 [2021-11-02 23:08:29,422 INFO L226 Difference]: Without dead ends: 428 [2021-11-02 23:08:29,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-11-02 23:08:29,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2021-11-02 23:08:29,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 428. [2021-11-02 23:08:29,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 426 states have (on average 1.0046948356807512) internal successors, (428), 427 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:29,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 428 transitions. [2021-11-02 23:08:29,465 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 428 transitions. Word has length 419 [2021-11-02 23:08:29,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:29,466 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 428 transitions. [2021-11-02 23:08:29,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 6.868852459016393) internal successors, (419), 61 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:29,466 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 428 transitions. [2021-11-02 23:08:29,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-11-02 23:08:29,468 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:29,468 INFO L513 BasicCegarLoop]: trace histogram [61, 60, 60, 60, 60, 60, 60, 1, 1] [2021-11-02 23:08:29,521 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (119)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:29,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-11-02 23:08:29,669 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:08:29,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:29,669 INFO L85 PathProgramCache]: Analyzing trace with hash -853553823, now seen corresponding path program 60 times [2021-11-02 23:08:29,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:29,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663884018] [2021-11-02 23:08:29,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:29,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:29,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:31,469 INFO L134 CoverageAnalysis]: Checked inductivity of 12510 backedges. 0 proven. 12510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:31,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:31,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663884018] [2021-11-02 23:08:31,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663884018] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:31,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349794601] [2021-11-02 23:08:31,470 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:08:31,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:31,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:31,473 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:08:31,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Waiting until timeout for monitored process [2021-11-02 23:08:39,542 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-11-02 23:08:39,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:08:39,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-02 23:08:39,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 12510 backedges. 0 proven. 12510 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:40,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349794601] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:40,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:08:40,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-11-02 23:08:40,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49634061] [2021-11-02 23:08:40,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-02 23:08:40,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:40,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-02 23:08:40,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-02 23:08:40,550 INFO L87 Difference]: Start difference. First operand 428 states and 428 transitions. Second operand has 63 states, 62 states have (on average 6.82258064516129) internal successors, (423), 62 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:40,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:40,731 INFO L93 Difference]: Finished difference Result 434 states and 434 transitions. [2021-11-02 23:08:40,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-02 23:08:40,731 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 6.82258064516129) internal successors, (423), 62 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2021-11-02 23:08:40,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:40,732 INFO L225 Difference]: With dead ends: 434 [2021-11-02 23:08:40,732 INFO L226 Difference]: Without dead ends: 433 [2021-11-02 23:08:40,733 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 422 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-02 23:08:40,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2021-11-02 23:08:40,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 432. [2021-11-02 23:08:40,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 432 states, 430 states have (on average 1.0046511627906978) internal successors, (432), 431 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:40,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 432 transitions. [2021-11-02 23:08:40,738 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 432 transitions. Word has length 423 [2021-11-02 23:08:40,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:40,738 INFO L470 AbstractCegarLoop]: Abstraction has 432 states and 432 transitions. [2021-11-02 23:08:40,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 6.82258064516129) internal successors, (423), 62 states have internal predecessors, (423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:40,738 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 432 transitions. [2021-11-02 23:08:40,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2021-11-02 23:08:40,740 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:40,740 INFO L513 BasicCegarLoop]: trace histogram [61, 61, 61, 61, 60, 60, 60, 1, 1] [2021-11-02 23:08:40,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (120)] Forceful destruction successful, exit code 0 [2021-11-02 23:08:40,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 120 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable124 [2021-11-02 23:08:40,941 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:08:40,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:40,941 INFO L85 PathProgramCache]: Analyzing trace with hash -2015504915, now seen corresponding path program 60 times [2021-11-02 23:08:40,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:40,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180309943] [2021-11-02 23:08:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:40,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12690 backedges. 0 proven. 12690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:42,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:42,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180309943] [2021-11-02 23:08:42,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180309943] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:42,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491655576] [2021-11-02 23:08:42,640 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-02 23:08:42,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:42,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:42,640 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:08:42,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Waiting until timeout for monitored process [2021-11-02 23:08:50,545 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-11-02 23:08:50,545 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:08:50,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-02 23:08:50,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:08:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12690 backedges. 0 proven. 12690 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:51,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491655576] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:51,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:08:51,627 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-11-02 23:08:51,627 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812576324] [2021-11-02 23:08:51,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-02 23:08:51,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:08:51,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-02 23:08:51,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-02 23:08:51,628 INFO L87 Difference]: Start difference. First operand 432 states and 432 transitions. Second operand has 63 states, 62 states have (on average 6.870967741935484) internal successors, (426), 62 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:51,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:08:51,814 INFO L93 Difference]: Finished difference Result 436 states and 436 transitions. [2021-11-02 23:08:51,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-02 23:08:51,814 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 6.870967741935484) internal successors, (426), 62 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 426 [2021-11-02 23:08:51,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:08:51,815 INFO L225 Difference]: With dead ends: 436 [2021-11-02 23:08:51,815 INFO L226 Difference]: Without dead ends: 435 [2021-11-02 23:08:51,816 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-11-02 23:08:51,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2021-11-02 23:08:51,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2021-11-02 23:08:51,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 433 states have (on average 1.0046189376443417) internal successors, (435), 434 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:51,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 435 transitions. [2021-11-02 23:08:51,822 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 435 transitions. Word has length 426 [2021-11-02 23:08:51,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:08:51,822 INFO L470 AbstractCegarLoop]: Abstraction has 435 states and 435 transitions. [2021-11-02 23:08:51,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 6.870967741935484) internal successors, (426), 62 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:08:51,823 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 435 transitions. [2021-11-02 23:08:51,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-02 23:08:51,824 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:08:51,824 INFO L513 BasicCegarLoop]: trace histogram [62, 61, 61, 61, 61, 61, 61, 1, 1] [2021-11-02 23:08:51,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (121)] Ended with exit code 0 [2021-11-02 23:08:52,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 121 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125 [2021-11-02 23:08:52,025 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:08:52,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:08:52,025 INFO L85 PathProgramCache]: Analyzing trace with hash 403610161, now seen corresponding path program 61 times [2021-11-02 23:08:52,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:08:52,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425317557] [2021-11-02 23:08:52,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:08:52,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:08:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:08:53,608 INFO L134 CoverageAnalysis]: Checked inductivity of 12932 backedges. 0 proven. 12932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:08:53,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:08:53,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425317557] [2021-11-02 23:08:53,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425317557] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:08:53,609 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805268714] [2021-11-02 23:08:53,609 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:08:53,609 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:08:53,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:08:53,610 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:08:53,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Waiting until timeout for monitored process [2021-11-02 23:09:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:01,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-02 23:09:01,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:02,361 INFO L134 CoverageAnalysis]: Checked inductivity of 12932 backedges. 0 proven. 12932 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:02,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805268714] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:02,362 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:09:02,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-11-02 23:09:02,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945124598] [2021-11-02 23:09:02,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-02 23:09:02,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:02,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-02 23:09:02,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-02 23:09:02,364 INFO L87 Difference]: Start difference. First operand 435 states and 435 transitions. Second operand has 64 states, 63 states have (on average 6.825396825396825) internal successors, (430), 63 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:02,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:02,532 INFO L93 Difference]: Finished difference Result 441 states and 441 transitions. [2021-11-02 23:09:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-02 23:09:02,533 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.825396825396825) internal successors, (430), 63 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2021-11-02 23:09:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:02,534 INFO L225 Difference]: With dead ends: 441 [2021-11-02 23:09:02,534 INFO L226 Difference]: Without dead ends: 440 [2021-11-02 23:09:02,534 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 491 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-02 23:09:02,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-02 23:09:02,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 439. [2021-11-02 23:09:02,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 437 states have (on average 1.0045766590389016) internal successors, (439), 438 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:02,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 439 transitions. [2021-11-02 23:09:02,540 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 439 transitions. Word has length 430 [2021-11-02 23:09:02,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:02,540 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 439 transitions. [2021-11-02 23:09:02,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 6.825396825396825) internal successors, (430), 63 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 439 transitions. [2021-11-02 23:09:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-11-02 23:09:02,622 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:02,622 INFO L513 BasicCegarLoop]: trace histogram [62, 62, 62, 62, 61, 61, 61, 1, 1] [2021-11-02 23:09:02,670 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (122)] Ended with exit code 0 [2021-11-02 23:09:02,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 122 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable126 [2021-11-02 23:09:02,823 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:09:02,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:02,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1958078691, now seen corresponding path program 61 times [2021-11-02 23:09:02,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:02,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105223413] [2021-11-02 23:09:02,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:02,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 13115 backedges. 0 proven. 13115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:04,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:04,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105223413] [2021-11-02 23:09:04,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105223413] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:04,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1113740812] [2021-11-02 23:09:04,496 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-02 23:09:04,496 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:04,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:04,497 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:04,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Waiting until timeout for monitored process [2021-11-02 23:09:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:12,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 63 conjunts are in the unsatisfiable core [2021-11-02 23:09:12,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:13,612 INFO L134 CoverageAnalysis]: Checked inductivity of 13115 backedges. 0 proven. 13115 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:13,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1113740812] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:13,612 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:09:13,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-11-02 23:09:13,613 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878999907] [2021-11-02 23:09:13,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-11-02 23:09:13,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:13,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-11-02 23:09:13,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-02 23:09:13,615 INFO L87 Difference]: Start difference. First operand 439 states and 439 transitions. Second operand has 64 states, 63 states have (on average 6.873015873015873) internal successors, (433), 63 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:13,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:13,792 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2021-11-02 23:09:13,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-11-02 23:09:13,793 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 6.873015873015873) internal successors, (433), 63 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 433 [2021-11-02 23:09:13,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:13,794 INFO L225 Difference]: With dead ends: 443 [2021-11-02 23:09:13,794 INFO L226 Difference]: Without dead ends: 442 [2021-11-02 23:09:13,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-11-02 23:09:13,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-02 23:09:13,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-02 23:09:13,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 440 states have (on average 1.0045454545454546) internal successors, (442), 441 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:13,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 442 transitions. [2021-11-02 23:09:13,801 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 442 transitions. Word has length 433 [2021-11-02 23:09:13,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:13,802 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 442 transitions. [2021-11-02 23:09:13,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 6.873015873015873) internal successors, (433), 63 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:13,802 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 442 transitions. [2021-11-02 23:09:13,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2021-11-02 23:09:13,804 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:13,804 INFO L513 BasicCegarLoop]: trace histogram [63, 62, 62, 62, 62, 62, 62, 1, 1] [2021-11-02 23:09:13,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (123)] Ended with exit code 0 [2021-11-02 23:09:14,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 123 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable127 [2021-11-02 23:09:14,008 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:09:14,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash 471253857, now seen corresponding path program 62 times [2021-11-02 23:09:14,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:14,008 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232087929] [2021-11-02 23:09:14,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:14,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:14,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:15,701 INFO L134 CoverageAnalysis]: Checked inductivity of 13361 backedges. 0 proven. 13361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:15,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:15,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232087929] [2021-11-02 23:09:15,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232087929] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:15,701 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592300541] [2021-11-02 23:09:15,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:09:15,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:15,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:15,702 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:15,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Waiting until timeout for monitored process [2021-11-02 23:09:23,931 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:09:23,931 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:09:23,935 INFO L263 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-02 23:09:23,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 13361 backedges. 0 proven. 13361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:25,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592300541] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:25,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:09:25,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-11-02 23:09:25,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29481513] [2021-11-02 23:09:25,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-02 23:09:25,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:25,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-02 23:09:25,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-02 23:09:25,119 INFO L87 Difference]: Start difference. First operand 442 states and 442 transitions. Second operand has 65 states, 64 states have (on average 6.828125) internal successors, (437), 64 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:25,308 INFO L93 Difference]: Finished difference Result 448 states and 448 transitions. [2021-11-02 23:09:25,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-02 23:09:25,308 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 6.828125) internal successors, (437), 64 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 437 [2021-11-02 23:09:25,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:25,310 INFO L225 Difference]: With dead ends: 448 [2021-11-02 23:09:25,310 INFO L226 Difference]: Without dead ends: 447 [2021-11-02 23:09:25,311 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-02 23:09:25,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-11-02 23:09:25,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2021-11-02 23:09:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 444 states have (on average 1.0045045045045045) internal successors, (446), 445 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 446 transitions. [2021-11-02 23:09:25,318 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 446 transitions. Word has length 437 [2021-11-02 23:09:25,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:25,319 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 446 transitions. [2021-11-02 23:09:25,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 6.828125) internal successors, (437), 64 states have internal predecessors, (437), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:25,319 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 446 transitions. [2021-11-02 23:09:25,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-11-02 23:09:25,322 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:25,322 INFO L513 BasicCegarLoop]: trace histogram [63, 63, 63, 63, 62, 62, 62, 1, 1] [2021-11-02 23:09:25,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (124)] Forceful destruction successful, exit code 0 [2021-11-02 23:09:25,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable128 [2021-11-02 23:09:25,536 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:09:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:25,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1124392979, now seen corresponding path program 62 times [2021-11-02 23:09:25,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:25,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435421956] [2021-11-02 23:09:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:25,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:27,173 INFO L134 CoverageAnalysis]: Checked inductivity of 13547 backedges. 0 proven. 13547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:27,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:27,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435421956] [2021-11-02 23:09:27,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435421956] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:27,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046684596] [2021-11-02 23:09:27,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-02 23:09:27,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:27,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:27,174 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:27,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Waiting until timeout for monitored process [2021-11-02 23:09:35,732 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-02 23:09:35,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:09:35,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-02 23:09:35,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:36,837 INFO L134 CoverageAnalysis]: Checked inductivity of 13547 backedges. 0 proven. 13547 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:36,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046684596] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:36,838 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:09:36,838 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-11-02 23:09:36,838 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048704101] [2021-11-02 23:09:36,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-02 23:09:36,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:36,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-02 23:09:36,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-02 23:09:36,839 INFO L87 Difference]: Start difference. First operand 446 states and 446 transitions. Second operand has 65 states, 64 states have (on average 6.875) internal successors, (440), 64 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:37,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:37,017 INFO L93 Difference]: Finished difference Result 450 states and 450 transitions. [2021-11-02 23:09:37,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-02 23:09:37,018 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 6.875) internal successors, (440), 64 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 440 [2021-11-02 23:09:37,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:37,019 INFO L225 Difference]: With dead ends: 450 [2021-11-02 23:09:37,019 INFO L226 Difference]: Without dead ends: 449 [2021-11-02 23:09:37,019 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 502 GetRequests, 439 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-11-02 23:09:37,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2021-11-02 23:09:37,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 449. [2021-11-02 23:09:37,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 447 states have (on average 1.0044742729306488) internal successors, (449), 448 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:37,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 449 transitions. [2021-11-02 23:09:37,025 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 449 transitions. Word has length 440 [2021-11-02 23:09:37,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:37,026 INFO L470 AbstractCegarLoop]: Abstraction has 449 states and 449 transitions. [2021-11-02 23:09:37,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 6.875) internal successors, (440), 64 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:37,026 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 449 transitions. [2021-11-02 23:09:37,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-02 23:09:37,029 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:37,029 INFO L513 BasicCegarLoop]: trace histogram [64, 63, 63, 63, 63, 63, 63, 1, 1] [2021-11-02 23:09:37,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (125)] Ended with exit code 0 [2021-11-02 23:09:37,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129,125 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:37,244 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:09:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:37,244 INFO L85 PathProgramCache]: Analyzing trace with hash -1988697039, now seen corresponding path program 63 times [2021-11-02 23:09:37,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:37,244 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001951617] [2021-11-02 23:09:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:37,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:39,112 INFO L134 CoverageAnalysis]: Checked inductivity of 13797 backedges. 0 proven. 13797 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:39,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:39,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001951617] [2021-11-02 23:09:39,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001951617] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:39,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858152615] [2021-11-02 23:09:39,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:09:39,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:39,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:39,120 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:39,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Waiting until timeout for monitored process [2021-11-02 23:09:48,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-11-02 23:09:48,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:09:48,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-02 23:09:48,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:09:49,573 INFO L134 CoverageAnalysis]: Checked inductivity of 13797 backedges. 0 proven. 13797 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:49,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858152615] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:49,574 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:09:49,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-11-02 23:09:49,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785667040] [2021-11-02 23:09:49,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-02 23:09:49,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:09:49,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-02 23:09:49,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-02 23:09:49,576 INFO L87 Difference]: Start difference. First operand 449 states and 449 transitions. Second operand has 66 states, 65 states have (on average 6.8307692307692305) internal successors, (444), 65 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:09:49,775 INFO L93 Difference]: Finished difference Result 455 states and 455 transitions. [2021-11-02 23:09:49,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-02 23:09:49,776 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 6.8307692307692305) internal successors, (444), 65 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 444 [2021-11-02 23:09:49,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:09:49,777 INFO L225 Difference]: With dead ends: 455 [2021-11-02 23:09:49,777 INFO L226 Difference]: Without dead ends: 454 [2021-11-02 23:09:49,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 443 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-02 23:09:49,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-11-02 23:09:49,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 453. [2021-11-02 23:09:49,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 451 states have (on average 1.0044345898004434) internal successors, (453), 452 states have internal predecessors, (453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:49,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 453 transitions. [2021-11-02 23:09:49,783 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 453 transitions. Word has length 444 [2021-11-02 23:09:49,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:09:49,784 INFO L470 AbstractCegarLoop]: Abstraction has 453 states and 453 transitions. [2021-11-02 23:09:49,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 6.8307692307692305) internal successors, (444), 65 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:09:49,784 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 453 transitions. [2021-11-02 23:09:49,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 448 [2021-11-02 23:09:49,786 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:09:49,786 INFO L513 BasicCegarLoop]: trace histogram [64, 64, 64, 64, 63, 63, 63, 1, 1] [2021-11-02 23:09:49,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (126)] Ended with exit code 0 [2021-11-02 23:09:49,987 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130,126 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:49,988 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:09:49,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:09:49,988 INFO L85 PathProgramCache]: Analyzing trace with hash -494564067, now seen corresponding path program 63 times [2021-11-02 23:09:49,988 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:09:49,988 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295580226] [2021-11-02 23:09:49,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:09:49,988 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:09:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:09:51,985 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 0 proven. 13986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:09:51,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:09:51,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295580226] [2021-11-02 23:09:51,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295580226] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:09:51,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82552461] [2021-11-02 23:09:51,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-02 23:09:51,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:09:51,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:09:51,987 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:09:51,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Waiting until timeout for monitored process [2021-11-02 23:10:01,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-11-02 23:10:01,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-02 23:10:01,130 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-02 23:10:01,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-02 23:10:02,468 INFO L134 CoverageAnalysis]: Checked inductivity of 13986 backedges. 0 proven. 13986 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:02,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82552461] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:10:02,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-02 23:10:02,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-11-02 23:10:02,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716986922] [2021-11-02 23:10:02,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-11-02 23:10:02,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-02 23:10:02,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-11-02 23:10:02,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-02 23:10:02,471 INFO L87 Difference]: Start difference. First operand 453 states and 453 transitions. Second operand has 66 states, 65 states have (on average 6.876923076923077) internal successors, (447), 65 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:02,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-02 23:10:02,662 INFO L93 Difference]: Finished difference Result 457 states and 457 transitions. [2021-11-02 23:10:02,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-11-02 23:10:02,663 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 6.876923076923077) internal successors, (447), 65 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 447 [2021-11-02 23:10:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-02 23:10:02,664 INFO L225 Difference]: With dead ends: 457 [2021-11-02 23:10:02,664 INFO L226 Difference]: Without dead ends: 456 [2021-11-02 23:10:02,664 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 446 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-11-02 23:10:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-02 23:10:02,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2021-11-02 23:10:02,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 454 states have (on average 1.0044052863436124) internal successors, (456), 455 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:02,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 456 transitions. [2021-11-02 23:10:02,673 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 456 transitions. Word has length 447 [2021-11-02 23:10:02,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-02 23:10:02,674 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 456 transitions. [2021-11-02 23:10:02,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 6.876923076923077) internal successors, (447), 65 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-02 23:10:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 456 transitions. [2021-11-02 23:10:02,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2021-11-02 23:10:02,678 INFO L505 BasicCegarLoop]: Found error trace [2021-11-02 23:10:02,678 INFO L513 BasicCegarLoop]: trace histogram [65, 64, 64, 64, 64, 64, 64, 1, 1] [2021-11-02 23:10:02,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (127)] Ended with exit code 0 [2021-11-02 23:10:02,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131,127 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:10:02,900 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-02 23:10:02,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-02 23:10:02,900 INFO L85 PathProgramCache]: Analyzing trace with hash -593020575, now seen corresponding path program 64 times [2021-11-02 23:10:02,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-02 23:10:02,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222232290] [2021-11-02 23:10:02,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-02 23:10:02,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-02 23:10:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-02 23:10:04,642 INFO L134 CoverageAnalysis]: Checked inductivity of 14240 backedges. 0 proven. 14240 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-02 23:10:04,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-02 23:10:04,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222232290] [2021-11-02 23:10:04,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222232290] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-02 23:10:04,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400695786] [2021-11-02 23:10:04,643 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-02 23:10:04,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-02 23:10:04,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 [2021-11-02 23:10:04,644 INFO L229 MonitoredProcess]: Starting monitored process 128 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-02 23:10:04,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0299d38-5330-4d3c-946d-c7812400803d/bin/uautomizer-tBqnrhUYjU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (128)] Waiting until timeout for monitored process