./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Addition02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY --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 32bit --witnessprinter.graph.data.programhash 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:28:24,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:28:24,558 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:28:24,607 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:28:24,608 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:28:24,612 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:28:24,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:28:24,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:28:24,622 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:28:24,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:28:24,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:28:24,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:28:24,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:28:24,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:28:24,642 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:28:24,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:28:24,650 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:28:24,653 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:28:24,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:28:24,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:28:24,664 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:28:24,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:28:24,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:28:24,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:28:24,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:28:24,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:28:24,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:28:24,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:28:24,675 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:28:24,676 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:28:24,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:28:24,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:28:24,678 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:28:24,679 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:28:24,680 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:28:24,681 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:28:24,681 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:28:24,682 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:28:24,682 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:28:24,683 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:28:24,683 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:28:24,684 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-11-07 07:28:24,717 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:28:24,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:28:24,728 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:28:24,728 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:28:24,729 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:28:24,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:28:24,730 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:28:24,730 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:28:24,730 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:28:24,731 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-07 07:28:24,731 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:28:24,731 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:28:24,731 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:28:24,732 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:28:24,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:28:24,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:28:24,732 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-07 07:28:24,732 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:28:24,733 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:28:24,733 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:28:24,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:28:24,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:28:24,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:28:24,734 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:28:24,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:28:24,735 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:28:24,735 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:28:24,735 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:28:24,735 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:28:24,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:28:24,736 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:28:24,736 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:28:24,736 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_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 [2021-11-07 07:28:24,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:28:25,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:28:25,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:28:25,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:28:25,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:28:25,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/recursive/Addition02.c [2021-11-07 07:28:25,079 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/data/8b909060e/6a383640dc9349238ddd35940474776d/FLAG2b9e1c54c [2021-11-07 07:28:25,495 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:28:25,496 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/sv-benchmarks/c/recursive/Addition02.c [2021-11-07 07:28:25,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/data/8b909060e/6a383640dc9349238ddd35940474776d/FLAG2b9e1c54c [2021-11-07 07:28:25,873 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/data/8b909060e/6a383640dc9349238ddd35940474776d [2021-11-07 07:28:25,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:28:25,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:28:25,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:28:25,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:28:25,892 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:28:25,893 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:28:25" (1/1) ... [2021-11-07 07:28:25,894 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@720ac01c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:25, skipping insertion in model container [2021-11-07 07:28:25,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:28:25" (1/1) ... [2021-11-07 07:28:25,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:28:25,915 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:28:26,097 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2021-11-07 07:28:26,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:28:26,105 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:28:26,118 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2021-11-07 07:28:26,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:28:26,131 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:28:26,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26 WrapperNode [2021-11-07 07:28:26,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:28:26,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:28:26,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:28:26,133 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:28:26,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,153 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,176 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:28:26,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:28:26,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:28:26,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:28:26,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,203 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:28:26,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:28:26,223 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:28:26,223 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:28:26,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (1/1) ... [2021-11-07 07:28:26,233 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:28:26,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:26,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:28:26,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:28:26,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:28:26,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:28:26,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:28:26,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:28:26,329 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-11-07 07:28:26,329 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-11-07 07:28:26,612 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:28:26,612 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-07 07:28:26,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:28:26 BoogieIcfgContainer [2021-11-07 07:28:26,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:28:26,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:28:26,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:28:26,620 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:28:26,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:28:25" (1/3) ... [2021-11-07 07:28:26,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7ae244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:28:26, skipping insertion in model container [2021-11-07 07:28:26,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:28:26" (2/3) ... [2021-11-07 07:28:26,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7ae244 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:28:26, skipping insertion in model container [2021-11-07 07:28:26,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:28:26" (3/3) ... [2021-11-07 07:28:26,623 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02.c [2021-11-07 07:28:26,629 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:28:26,629 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-07 07:28:26,675 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:28:26,682 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 [2021-11-07 07:28:26,683 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-07 07:28:26,700 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-07 07:28:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 07:28:26,705 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:26,705 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:26,706 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:26,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:26,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1314326780, now seen corresponding path program 1 times [2021-11-07 07:28:26,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:26,720 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006919765] [2021-11-07 07:28:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:26,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:26,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:26,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:26,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:26,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006919765] [2021-11-07 07:28:26,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006919765] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:26,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:26,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:28:26,932 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975837007] [2021-11-07 07:28:26,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:28:26,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:26,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:28:26,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:28:26,955 INFO L87 Difference]: Start difference. First operand has 41 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:27,103 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2021-11-07 07:28:27,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:28:27,105 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 07:28:27,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:27,113 INFO L225 Difference]: With dead ends: 73 [2021-11-07 07:28:27,113 INFO L226 Difference]: Without dead ends: 60 [2021-11-07 07:28:27,116 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:28:27,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-07 07:28:27,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2021-11-07 07:28:27,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 46 states have internal predecessors, (58), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-07 07:28:27,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2021-11-07 07:28:27,157 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 9 [2021-11-07 07:28:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:27,157 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2021-11-07 07:28:27,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2021-11-07 07:28:27,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 07:28:27,160 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:27,160 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:27,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:28:27,161 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:27,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:27,162 INFO L85 PathProgramCache]: Analyzing trace with hash 2089424586, now seen corresponding path program 1 times [2021-11-07 07:28:27,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:27,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226614275] [2021-11-07 07:28:27,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:27,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:27,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:27,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:27,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:27,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226614275] [2021-11-07 07:28:27,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226614275] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:27,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:27,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:28:27,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975497845] [2021-11-07 07:28:27,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:28:27,240 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:27,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:28:27,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:28:27,242 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:27,336 INFO L93 Difference]: Finished difference Result 98 states and 126 transitions. [2021-11-07 07:28:27,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:28:27,337 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 07:28:27,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:27,339 INFO L225 Difference]: With dead ends: 98 [2021-11-07 07:28:27,340 INFO L226 Difference]: Without dead ends: 96 [2021-11-07 07:28:27,341 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:28:27,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-07 07:28:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2021-11-07 07:28:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.5522388059701493) internal successors, (104), 76 states have internal predecessors, (104), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 07:28:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2021-11-07 07:28:27,359 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 10 [2021-11-07 07:28:27,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:27,359 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2021-11-07 07:28:27,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,360 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2021-11-07 07:28:27,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 07:28:27,361 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:27,361 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:27,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:28:27,362 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:27,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:27,363 INFO L85 PathProgramCache]: Analyzing trace with hash 347527997, now seen corresponding path program 1 times [2021-11-07 07:28:27,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:27,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367289592] [2021-11-07 07:28:27,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:27,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:27,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:27,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-07 07:28:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:27,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:27,423 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:27,423 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367289592] [2021-11-07 07:28:27,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367289592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:27,424 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:27,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:28:27,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22330343] [2021-11-07 07:28:27,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:28:27,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:27,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:28:27,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:28:27,427 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 07:28:27,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:27,450 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2021-11-07 07:28:27,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:28:27,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-07 07:28:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:27,453 INFO L225 Difference]: With dead ends: 90 [2021-11-07 07:28:27,453 INFO L226 Difference]: Without dead ends: 89 [2021-11-07 07:28:27,453 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:28:27,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-07 07:28:27,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-11-07 07:28:27,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.537313432835821) internal successors, (103), 75 states have internal predecessors, (103), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 07:28:27,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2021-11-07 07:28:27,470 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 11 [2021-11-07 07:28:27,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:27,470 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2021-11-07 07:28:27,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 07:28:27,471 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2021-11-07 07:28:27,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 07:28:27,472 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:27,472 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:27,472 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:28:27,473 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:27,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:27,474 INFO L85 PathProgramCache]: Analyzing trace with hash 347652798, now seen corresponding path program 1 times [2021-11-07 07:28:27,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:27,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280526501] [2021-11-07 07:28:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:27,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:27,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:27,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:27,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:27,551 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280526501] [2021-11-07 07:28:27,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280526501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:27,552 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:27,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:28:27,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310641820] [2021-11-07 07:28:27,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:28:27,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:27,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:28:27,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:28:27,555 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:27,663 INFO L93 Difference]: Finished difference Result 98 states and 129 transitions. [2021-11-07 07:28:27,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:28:27,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-07 07:28:27,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:27,667 INFO L225 Difference]: With dead ends: 98 [2021-11-07 07:28:27,667 INFO L226 Difference]: Without dead ends: 96 [2021-11-07 07:28:27,668 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:28:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-07 07:28:27,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2021-11-07 07:28:27,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 67 states have (on average 1.4477611940298507) internal successors, (97), 74 states have internal predecessors, (97), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-07 07:28:27,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 115 transitions. [2021-11-07 07:28:27,684 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 115 transitions. Word has length 11 [2021-11-07 07:28:27,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:27,685 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 115 transitions. [2021-11-07 07:28:27,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,686 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2021-11-07 07:28:27,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 07:28:27,686 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:27,686 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:27,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:28:27,687 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:27,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:27,688 INFO L85 PathProgramCache]: Analyzing trace with hash -2111533933, now seen corresponding path program 1 times [2021-11-07 07:28:27,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:27,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171769144] [2021-11-07 07:28:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:27,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:27,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-11-07 07:28:27,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:27,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:27,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:27,764 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171769144] [2021-11-07 07:28:27,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171769144] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:27,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:27,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:28:27,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5222618] [2021-11-07 07:28:27,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:28:27,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:27,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:28:27,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:28:27,771 INFO L87 Difference]: Start difference. First operand 88 states and 115 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 07:28:27,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:27,803 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2021-11-07 07:28:27,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:28:27,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-07 07:28:27,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:27,805 INFO L225 Difference]: With dead ends: 88 [2021-11-07 07:28:27,814 INFO L226 Difference]: Without dead ends: 68 [2021-11-07 07:28:27,815 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:28:27,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-11-07 07:28:27,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2021-11-07 07:28:27,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.380952380952381) internal successors, (58), 49 states have internal predecessors, (58), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2021-11-07 07:28:27,831 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 12 [2021-11-07 07:28:27,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:27,832 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-11-07 07:28:27,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-07 07:28:27,833 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2021-11-07 07:28:27,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-07 07:28:27,835 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:27,835 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:27,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 07:28:27,836 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:27,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:27,841 INFO L85 PathProgramCache]: Analyzing trace with hash -2107665076, now seen corresponding path program 1 times [2021-11-07 07:28:27,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:27,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313775116] [2021-11-07 07:28:27,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:27,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:27,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:27,886 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313775116] [2021-11-07 07:28:27,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313775116] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:27,888 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:27,889 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:28:27,889 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677949877] [2021-11-07 07:28:27,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:28:27,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:27,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:28:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:28:27,894 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:27,924 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2021-11-07 07:28:27,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:28:27,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-07 07:28:27,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:27,925 INFO L225 Difference]: With dead ends: 54 [2021-11-07 07:28:27,926 INFO L226 Difference]: Without dead ends: 53 [2021-11-07 07:28:27,926 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 [2021-11-07 07:28:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-07 07:28:27,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-07 07:28:27,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 48 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2021-11-07 07:28:27,940 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 12 [2021-11-07 07:28:27,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:27,940 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2021-11-07 07:28:27,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:27,941 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2021-11-07 07:28:27,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 07:28:27,941 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:27,941 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:27,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 07:28:27,942 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:27,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:27,943 INFO L85 PathProgramCache]: Analyzing trace with hash -586735519, now seen corresponding path program 1 times [2021-11-07 07:28:27,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:27,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303888905] [2021-11-07 07:28:27,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:27,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:27,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:27,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:27,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303888905] [2021-11-07 07:28:27,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303888905] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:27,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:27,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:28:27,983 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302194836] [2021-11-07 07:28:27,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:28:27,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:27,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:28:27,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:28:27,985 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:28,022 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2021-11-07 07:28:28,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:28:28,022 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 07:28:28,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:28,023 INFO L225 Difference]: With dead ends: 77 [2021-11-07 07:28:28,023 INFO L226 Difference]: Without dead ends: 44 [2021-11-07 07:28:28,024 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-07 07:28:28,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-11-07 07:28:28,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2021-11-07 07:28:28,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 36 states have internal predecessors, (40), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-11-07 07:28:28,029 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 13 [2021-11-07 07:28:28,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:28,029 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-11-07 07:28:28,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,030 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-11-07 07:28:28,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 07:28:28,031 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:28,031 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:28,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 07:28:28,031 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:28,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:28,032 INFO L85 PathProgramCache]: Analyzing trace with hash -367240775, now seen corresponding path program 1 times [2021-11-07 07:28:28,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:28,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124366593] [2021-11-07 07:28:28,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:28,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:28,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:28,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:28,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124366593] [2021-11-07 07:28:28,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124366593] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:28,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901668014] [2021-11-07 07:28:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:28,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:28,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:28,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:28,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 07:28:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:28,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 07:28:28,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:28,356 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:28,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901668014] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:28,357 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:28,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-07 07:28:28,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325851495] [2021-11-07 07:28:28,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:28:28,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:28,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:28:28,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:28:28,359 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:28,483 INFO L93 Difference]: Finished difference Result 93 states and 104 transitions. [2021-11-07 07:28:28,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:28:28,484 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 07:28:28,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:28,485 INFO L225 Difference]: With dead ends: 93 [2021-11-07 07:28:28,485 INFO L226 Difference]: Without dead ends: 91 [2021-11-07 07:28:28,486 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 07:28:28,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-07 07:28:28,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 69. [2021-11-07 07:28:28,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.3035714285714286) internal successors, (73), 62 states have internal predecessors, (73), 7 states have call successors, (7), 6 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2021-11-07 07:28:28,506 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 17 [2021-11-07 07:28:28,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:28,513 INFO L470 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2021-11-07 07:28:28,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,513 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2021-11-07 07:28:28,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 07:28:28,514 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:28,514 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:28,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-07 07:28:28,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-07 07:28:28,731 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:28,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:28,732 INFO L85 PathProgramCache]: Analyzing trace with hash -2146710882, now seen corresponding path program 1 times [2021-11-07 07:28:28,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:28,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040760252] [2021-11-07 07:28:28,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:28,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:28,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:28,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:28,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040760252] [2021-11-07 07:28:28,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040760252] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:28:28,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:28:28,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:28:28,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143139400] [2021-11-07 07:28:28,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 07:28:28,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:28,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 07:28:28,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 07:28:28,821 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:28,861 INFO L93 Difference]: Finished difference Result 70 states and 80 transitions. [2021-11-07 07:28:28,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-07 07:28:28,862 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-11-07 07:28:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:28,863 INFO L225 Difference]: With dead ends: 70 [2021-11-07 07:28:28,863 INFO L226 Difference]: Without dead ends: 26 [2021-11-07 07:28:28,864 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:28:28,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-11-07 07:28:28,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-11-07 07:28:28,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-11-07 07:28:28,883 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 21 [2021-11-07 07:28:28,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:28,884 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-11-07 07:28:28,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:28,885 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-11-07 07:28:28,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 07:28:28,885 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:28,886 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:28,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 07:28:28,886 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:28,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:28,888 INFO L85 PathProgramCache]: Analyzing trace with hash -904422026, now seen corresponding path program 2 times [2021-11-07 07:28:28,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:28,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206024285] [2021-11-07 07:28:28,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:28,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:28,981 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:28,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:28,982 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206024285] [2021-11-07 07:28:28,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206024285] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:28,989 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590123171] [2021-11-07 07:28:28,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:28:28,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:28,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:28,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:29,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 07:28:29,062 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:28:29,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:29,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 07:28:29,069 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:29,213 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:29,213 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590123171] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:29,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:29,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-11-07 07:28:29,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13943688] [2021-11-07 07:28:29,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:28:29,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:29,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:28:29,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:28:29,217 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 9 states, 8 states have (on average 2.75) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:29,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:29,282 INFO L93 Difference]: Finished difference Result 39 states and 39 transitions. [2021-11-07 07:28:29,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-07 07:28:29,283 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-07 07:28:29,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:29,287 INFO L225 Difference]: With dead ends: 39 [2021-11-07 07:28:29,288 INFO L226 Difference]: Without dead ends: 38 [2021-11-07 07:28:29,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:28:29,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-11-07 07:28:29,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2021-11-07 07:28:29,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:29,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 34 transitions. [2021-11-07 07:28:29,298 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 34 transitions. Word has length 25 [2021-11-07 07:28:29,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:29,299 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 34 transitions. [2021-11-07 07:28:29,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.75) internal successors, (22), 6 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:29,299 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 34 transitions. [2021-11-07 07:28:29,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-07 07:28:29,300 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:29,300 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:29,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:29,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-07 07:28:29,501 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:29,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:29,501 INFO L85 PathProgramCache]: Analyzing trace with hash -559557581, now seen corresponding path program 3 times [2021-11-07 07:28:29,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:29,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41611572] [2021-11-07 07:28:29,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:29,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:29,626 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:29,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:29,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41611572] [2021-11-07 07:28:29,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41611572] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:29,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72791664] [2021-11-07 07:28:29,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:28:29,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:29,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:29,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:29,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 07:28:29,712 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-11-07 07:28:29,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:29,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-07 07:28:29,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:29,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72791664] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:29,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:29,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-11-07 07:28:29,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120912265] [2021-11-07 07:28:29,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-07 07:28:29,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:29,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-07 07:28:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-07 07:28:29,854 INFO L87 Difference]: Start difference. First operand 34 states and 34 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:29,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:29,928 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2021-11-07 07:28:29,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-07 07:28:29,929 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-07 07:28:29,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:29,930 INFO L225 Difference]: With dead ends: 47 [2021-11-07 07:28:29,930 INFO L226 Difference]: Without dead ends: 46 [2021-11-07 07:28:29,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:28:29,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-07 07:28:29,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2021-11-07 07:28:29,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:29,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-11-07 07:28:29,935 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 33 [2021-11-07 07:28:29,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:29,935 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-11-07 07:28:29,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 7 states have internal predecessors, (29), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-11-07 07:28:29,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 07:28:29,937 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:29,937 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:29,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:30,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:30,151 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:30,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:30,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1797520880, now seen corresponding path program 4 times [2021-11-07 07:28:30,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:30,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123275989] [2021-11-07 07:28:30,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:30,152 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:30,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:30,270 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:30,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:30,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123275989] [2021-11-07 07:28:30,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123275989] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:30,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176818456] [2021-11-07 07:28:30,271 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:28:30,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:30,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:30,272 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:30,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 07:28:30,351 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:28:30,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:30,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-07 07:28:30,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:30,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176818456] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:30,511 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:30,511 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-11-07 07:28:30,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263811261] [2021-11-07 07:28:30,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-07 07:28:30,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:30,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-07 07:28:30,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:28:30,517 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 8 states have internal predecessors, (36), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:30,619 INFO L93 Difference]: Finished difference Result 55 states and 55 transitions. [2021-11-07 07:28:30,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:28:30,619 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 8 states have internal predecessors, (36), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-11-07 07:28:30,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:30,620 INFO L225 Difference]: With dead ends: 55 [2021-11-07 07:28:30,620 INFO L226 Difference]: Without dead ends: 54 [2021-11-07 07:28:30,622 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2021-11-07 07:28:30,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2021-11-07 07:28:30,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2021-11-07 07:28:30,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 43 states have (on average 1.0232558139534884) internal successors, (44), 43 states have internal predecessors, (44), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:30,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2021-11-07 07:28:30,636 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 41 [2021-11-07 07:28:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:30,636 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2021-11-07 07:28:30,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 8 states have internal predecessors, (36), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2021-11-07 07:28:30,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-07 07:28:30,638 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:30,638 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:30,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:30,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-07 07:28:30,860 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:30,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:30,860 INFO L85 PathProgramCache]: Analyzing trace with hash 99556013, now seen corresponding path program 5 times [2021-11-07 07:28:30,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:30,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166486743] [2021-11-07 07:28:30,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:30,861 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:30,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:31,005 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:31,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:31,005 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166486743] [2021-11-07 07:28:31,006 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166486743] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:31,006 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241964303] [2021-11-07 07:28:31,006 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:28:31,006 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:31,006 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:31,007 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:31,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 07:28:31,109 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-11-07 07:28:31,109 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:31,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 07:28:31,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:31,268 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:31,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241964303] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:31,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:31,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-11-07 07:28:31,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369235773] [2021-11-07 07:28:31,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-07 07:28:31,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:31,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-07 07:28:31,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2021-11-07 07:28:31,271 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 9 states have internal predecessors, (43), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:31,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:31,372 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-11-07 07:28:31,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-07 07:28:31,373 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 9 states have internal predecessors, (43), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2021-11-07 07:28:31,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:31,373 INFO L225 Difference]: With dead ends: 63 [2021-11-07 07:28:31,374 INFO L226 Difference]: Without dead ends: 62 [2021-11-07 07:28:31,374 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=126, Invalid=294, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:28:31,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-11-07 07:28:31,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2021-11-07 07:28:31,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:31,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 58 transitions. [2021-11-07 07:28:31,379 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 58 transitions. Word has length 49 [2021-11-07 07:28:31,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:31,379 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 58 transitions. [2021-11-07 07:28:31,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 9 states have internal predecessors, (43), 6 states have call successors, (6), 6 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:31,379 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 58 transitions. [2021-11-07 07:28:31,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-07 07:28:31,381 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:31,381 INFO L513 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:31,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:31,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-07 07:28:31,595 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:31,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:31,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1738266006, now seen corresponding path program 6 times [2021-11-07 07:28:31,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:31,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321960680] [2021-11-07 07:28:31,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:31,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:31,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:31,755 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:31,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:31,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321960680] [2021-11-07 07:28:31,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321960680] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:31,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683988626] [2021-11-07 07:28:31,756 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:28:31,756 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:31,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:31,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:31,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 07:28:31,898 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-11-07 07:28:31,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:31,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-07 07:28:31,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:32,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683988626] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:32,078 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:32,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-11-07 07:28:32,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892288354] [2021-11-07 07:28:32,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-07 07:28:32,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:32,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-07 07:28:32,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2021-11-07 07:28:32,081 INFO L87 Difference]: Start difference. First operand 58 states and 58 transitions. Second operand has 17 states, 16 states have (on average 3.125) internal successors, (50), 10 states have internal predecessors, (50), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:32,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:32,206 INFO L93 Difference]: Finished difference Result 71 states and 71 transitions. [2021-11-07 07:28:32,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 07:28:32,206 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 10 states have internal predecessors, (50), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-11-07 07:28:32,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:32,210 INFO L225 Difference]: With dead ends: 71 [2021-11-07 07:28:32,210 INFO L226 Difference]: Without dead ends: 70 [2021-11-07 07:28:32,211 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2021-11-07 07:28:32,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2021-11-07 07:28:32,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2021-11-07 07:28:32,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 57 states have (on average 1.0175438596491229) internal successors, (58), 57 states have internal predecessors, (58), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:32,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2021-11-07 07:28:32,218 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 57 [2021-11-07 07:28:32,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:32,220 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2021-11-07 07:28:32,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.125) internal successors, (50), 10 states have internal predecessors, (50), 7 states have call successors, (7), 7 states have call predecessors, (7), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:32,220 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2021-11-07 07:28:32,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-07 07:28:32,226 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:32,226 INFO L513 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:32,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:32,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:32,448 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:32,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:32,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1591749927, now seen corresponding path program 7 times [2021-11-07 07:28:32,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:32,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132755523] [2021-11-07 07:28:32,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:32,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:32,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:32,617 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:32,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:32,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132755523] [2021-11-07 07:28:32,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132755523] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:32,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505614387] [2021-11-07 07:28:32,618 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:28:32,618 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:32,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:32,623 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:32,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 07:28:32,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:32,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-07 07:28:32,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:32,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505614387] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:32,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:32,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-11-07 07:28:32,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728773809] [2021-11-07 07:28:32,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-07 07:28:32,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:32,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-07 07:28:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2021-11-07 07:28:32,958 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 11 states have internal predecessors, (57), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:33,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:33,109 INFO L93 Difference]: Finished difference Result 79 states and 79 transitions. [2021-11-07 07:28:33,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-07 07:28:33,110 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 11 states have internal predecessors, (57), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-11-07 07:28:33,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:33,111 INFO L225 Difference]: With dead ends: 79 [2021-11-07 07:28:33,111 INFO L226 Difference]: Without dead ends: 78 [2021-11-07 07:28:33,115 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:28:33,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-07 07:28:33,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 74. [2021-11-07 07:28:33,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 64 states have (on average 1.015625) internal successors, (65), 64 states have internal predecessors, (65), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:33,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2021-11-07 07:28:33,128 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 65 [2021-11-07 07:28:33,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:33,128 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2021-11-07 07:28:33,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.1666666666666665) internal successors, (57), 11 states have internal predecessors, (57), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:33,129 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2021-11-07 07:28:33,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-07 07:28:33,131 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:33,131 INFO L513 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:33,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:33,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-07 07:28:33,351 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:33,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:33,352 INFO L85 PathProgramCache]: Analyzing trace with hash -390061340, now seen corresponding path program 8 times [2021-11-07 07:28:33,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:33,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018522677] [2021-11-07 07:28:33,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:33,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:33,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:33,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018522677] [2021-11-07 07:28:33,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018522677] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:33,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162387111] [2021-11-07 07:28:33,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:28:33,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:33,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:33,593 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:33,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-07 07:28:33,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:28:33,755 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:33,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-07 07:28:33,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:33,978 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:33,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162387111] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:33,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:33,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-11-07 07:28:33,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74230587] [2021-11-07 07:28:33,980 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-11-07 07:28:33,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:33,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-11-07 07:28:33,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2021-11-07 07:28:33,981 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand has 21 states, 20 states have (on average 3.2) internal successors, (64), 12 states have internal predecessors, (64), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:34,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:34,133 INFO L93 Difference]: Finished difference Result 87 states and 87 transitions. [2021-11-07 07:28:34,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-07 07:28:34,134 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.2) internal successors, (64), 12 states have internal predecessors, (64), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2021-11-07 07:28:34,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:34,135 INFO L225 Difference]: With dead ends: 87 [2021-11-07 07:28:34,136 INFO L226 Difference]: Without dead ends: 86 [2021-11-07 07:28:34,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=255, Invalid=615, Unknown=0, NotChecked=0, Total=870 [2021-11-07 07:28:34,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2021-11-07 07:28:34,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2021-11-07 07:28:34,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 71 states have (on average 1.0140845070422535) internal successors, (72), 71 states have internal predecessors, (72), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:34,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2021-11-07 07:28:34,146 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 73 [2021-11-07 07:28:34,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:34,147 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2021-11-07 07:28:34,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.2) internal successors, (64), 12 states have internal predecessors, (64), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:34,147 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2021-11-07 07:28:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-07 07:28:34,149 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:34,149 INFO L513 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:34,187 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:34,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-07 07:28:34,363 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:34,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:34,363 INFO L85 PathProgramCache]: Analyzing trace with hash 409013153, now seen corresponding path program 9 times [2021-11-07 07:28:34,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:34,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013052040] [2021-11-07 07:28:34,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:34,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:34,637 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:34,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:34,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013052040] [2021-11-07 07:28:34,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013052040] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:34,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967839920] [2021-11-07 07:28:34,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:28:34,639 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:34,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:34,650 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:34,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-07 07:28:34,816 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-11-07 07:28:34,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:34,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-07 07:28:34,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:35,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967839920] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:35,063 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:35,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-11-07 07:28:35,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096237872] [2021-11-07 07:28:35,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-07 07:28:35,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:35,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-07 07:28:35,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506 [2021-11-07 07:28:35,067 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand has 23 states, 22 states have (on average 3.227272727272727) internal successors, (71), 13 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:35,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:35,265 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2021-11-07 07:28:35,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-07 07:28:35,266 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.227272727272727) internal successors, (71), 13 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-11-07 07:28:35,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:35,268 INFO L225 Difference]: With dead ends: 95 [2021-11-07 07:28:35,268 INFO L226 Difference]: Without dead ends: 94 [2021-11-07 07:28:35,270 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=308, Invalid=748, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 07:28:35,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-07 07:28:35,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2021-11-07 07:28:35,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 78 states have (on average 1.0128205128205128) internal successors, (79), 78 states have internal predecessors, (79), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:35,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2021-11-07 07:28:35,279 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 81 [2021-11-07 07:28:35,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:35,279 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2021-11-07 07:28:35,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.227272727272727) internal successors, (71), 13 states have internal predecessors, (71), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:35,280 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2021-11-07 07:28:35,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-07 07:28:35,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:35,286 INFO L513 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:35,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:35,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-07 07:28:35,511 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:35,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:35,511 INFO L85 PathProgramCache]: Analyzing trace with hash 589293406, now seen corresponding path program 10 times [2021-11-07 07:28:35,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:35,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11473495] [2021-11-07 07:28:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:35,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:35,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:35,795 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:35,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:35,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11473495] [2021-11-07 07:28:35,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11473495] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:35,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535546180] [2021-11-07 07:28:35,796 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:28:35,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:35,797 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:35,798 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:35,817 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-07 07:28:36,017 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:28:36,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:36,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 24 conjunts are in the unsatisfiable core [2021-11-07 07:28:36,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:36,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535546180] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:36,281 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:36,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-11-07 07:28:36,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580733230] [2021-11-07 07:28:36,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-07 07:28:36,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-07 07:28:36,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2021-11-07 07:28:36,283 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand has 25 states, 24 states have (on average 3.25) internal successors, (78), 14 states have internal predecessors, (78), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:36,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:36,487 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2021-11-07 07:28:36,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-07 07:28:36,488 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.25) internal successors, (78), 14 states have internal predecessors, (78), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-11-07 07:28:36,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:36,489 INFO L225 Difference]: With dead ends: 103 [2021-11-07 07:28:36,489 INFO L226 Difference]: Without dead ends: 102 [2021-11-07 07:28:36,490 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=366, Invalid=894, Unknown=0, NotChecked=0, Total=1260 [2021-11-07 07:28:36,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-11-07 07:28:36,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2021-11-07 07:28:36,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:36,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 98 transitions. [2021-11-07 07:28:36,498 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 98 transitions. Word has length 89 [2021-11-07 07:28:36,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:36,498 INFO L470 AbstractCegarLoop]: Abstraction has 98 states and 98 transitions. [2021-11-07 07:28:36,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.25) internal successors, (78), 14 states have internal predecessors, (78), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:36,499 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 98 transitions. [2021-11-07 07:28:36,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-07 07:28:36,500 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:36,500 INFO L513 BasicCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:36,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:36,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-07 07:28:36,718 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:36,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:36,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1856391653, now seen corresponding path program 11 times [2021-11-07 07:28:36,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:36,719 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243939250] [2021-11-07 07:28:36,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:36,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:36,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:37,049 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:37,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:37,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243939250] [2021-11-07 07:28:37,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243939250] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:37,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856560945] [2021-11-07 07:28:37,050 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:28:37,050 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:37,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:37,055 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:37,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-07 07:28:37,307 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-11-07 07:28:37,307 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:37,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-07 07:28:37,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:37,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856560945] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:37,634 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:37,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-11-07 07:28:37,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750747499] [2021-11-07 07:28:37,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-07 07:28:37,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:37,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-07 07:28:37,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=519, Unknown=0, NotChecked=0, Total=702 [2021-11-07 07:28:37,637 INFO L87 Difference]: Start difference. First operand 98 states and 98 transitions. Second operand has 27 states, 26 states have (on average 3.269230769230769) internal successors, (85), 15 states have internal predecessors, (85), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:37,865 INFO L93 Difference]: Finished difference Result 111 states and 111 transitions. [2021-11-07 07:28:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-07 07:28:37,866 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.269230769230769) internal successors, (85), 15 states have internal predecessors, (85), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-07 07:28:37,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:37,867 INFO L225 Difference]: With dead ends: 111 [2021-11-07 07:28:37,867 INFO L226 Difference]: Without dead ends: 110 [2021-11-07 07:28:37,868 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=429, Invalid=1053, Unknown=0, NotChecked=0, Total=1482 [2021-11-07 07:28:37,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-11-07 07:28:37,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2021-11-07 07:28:37,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 92 states have (on average 1.0108695652173914) internal successors, (93), 92 states have internal predecessors, (93), 13 states have call successors, (13), 13 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:37,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2021-11-07 07:28:37,876 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 97 [2021-11-07 07:28:37,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:37,877 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2021-11-07 07:28:37,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.269230769230769) internal successors, (85), 15 states have internal predecessors, (85), 12 states have call successors, (12), 12 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:37,878 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2021-11-07 07:28:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-07 07:28:37,879 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:37,879 INFO L513 BasicCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:37,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:38,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:38,095 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:38,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:38,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1047230424, now seen corresponding path program 12 times [2021-11-07 07:28:38,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:38,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191086230] [2021-11-07 07:28:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:38,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:38,435 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:38,438 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:38,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191086230] [2021-11-07 07:28:38,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191086230] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:38,438 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901704908] [2021-11-07 07:28:38,438 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:28:38,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:38,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:38,439 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:38,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-07 07:28:38,712 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-11-07 07:28:38,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:38,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-07 07:28:38,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:39,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901704908] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:39,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:39,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-11-07 07:28:39,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477341998] [2021-11-07 07:28:39,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-11-07 07:28:39,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:39,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-11-07 07:28:39,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=601, Unknown=0, NotChecked=0, Total=812 [2021-11-07 07:28:39,039 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 29 states, 28 states have (on average 3.2857142857142856) internal successors, (92), 16 states have internal predecessors, (92), 13 states have call successors, (13), 13 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:39,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:39,306 INFO L93 Difference]: Finished difference Result 119 states and 119 transitions. [2021-11-07 07:28:39,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-07 07:28:39,307 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.2857142857142856) internal successors, (92), 16 states have internal predecessors, (92), 13 states have call successors, (13), 13 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-11-07 07:28:39,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:39,309 INFO L225 Difference]: With dead ends: 119 [2021-11-07 07:28:39,309 INFO L226 Difference]: Without dead ends: 118 [2021-11-07 07:28:39,310 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=497, Invalid=1225, Unknown=0, NotChecked=0, Total=1722 [2021-11-07 07:28:39,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-07 07:28:39,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2021-11-07 07:28:39,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 99 states have (on average 1.0101010101010102) internal successors, (100), 99 states have internal predecessors, (100), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:39,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2021-11-07 07:28:39,318 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 105 [2021-11-07 07:28:39,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:39,319 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2021-11-07 07:28:39,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.2857142857142856) internal successors, (92), 16 states have internal predecessors, (92), 13 states have call successors, (13), 13 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:39,319 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2021-11-07 07:28:39,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-07 07:28:39,320 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:39,321 INFO L513 BasicCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:39,357 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:39,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:39,535 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:39,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1488071829, now seen corresponding path program 13 times [2021-11-07 07:28:39,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:39,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439776053] [2021-11-07 07:28:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:39,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:39,937 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:39,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:39,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439776053] [2021-11-07 07:28:39,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439776053] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:39,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [980677139] [2021-11-07 07:28:39,938 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:28:39,938 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:39,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:39,939 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:39,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-07 07:28:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:40,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 30 conjunts are in the unsatisfiable core [2021-11-07 07:28:40,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:40,619 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:40,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [980677139] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:40,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:40,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-11-07 07:28:40,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060457903] [2021-11-07 07:28:40,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-07 07:28:40,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:40,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-07 07:28:40,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=689, Unknown=0, NotChecked=0, Total=930 [2021-11-07 07:28:40,622 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand has 31 states, 30 states have (on average 3.3) internal successors, (99), 17 states have internal predecessors, (99), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:40,926 INFO L93 Difference]: Finished difference Result 127 states and 127 transitions. [2021-11-07 07:28:40,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-07 07:28:40,927 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.3) internal successors, (99), 17 states have internal predecessors, (99), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2021-11-07 07:28:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:40,928 INFO L225 Difference]: With dead ends: 127 [2021-11-07 07:28:40,928 INFO L226 Difference]: Without dead ends: 126 [2021-11-07 07:28:40,929 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=570, Invalid=1410, Unknown=0, NotChecked=0, Total=1980 [2021-11-07 07:28:40,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-07 07:28:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 122. [2021-11-07 07:28:40,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 106 states have (on average 1.009433962264151) internal successors, (107), 106 states have internal predecessors, (107), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:40,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 122 transitions. [2021-11-07 07:28:40,941 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 122 transitions. Word has length 113 [2021-11-07 07:28:40,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:40,942 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 122 transitions. [2021-11-07 07:28:40,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.3) internal successors, (99), 17 states have internal predecessors, (99), 14 states have call successors, (14), 14 states have call predecessors, (14), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:40,943 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 122 transitions. [2021-11-07 07:28:40,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-07 07:28:40,945 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:40,945 INFO L513 BasicCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:40,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-11-07 07:28:41,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:41,159 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:41,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:41,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1636488274, now seen corresponding path program 14 times [2021-11-07 07:28:41,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:41,160 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616134920] [2021-11-07 07:28:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:41,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:41,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:41,622 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:41,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:41,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616134920] [2021-11-07 07:28:41,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616134920] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:41,623 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450950692] [2021-11-07 07:28:41,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:28:41,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:41,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:41,625 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:41,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-07 07:28:42,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:28:42,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:42,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-07 07:28:42,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:42,456 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:42,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450950692] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:42,456 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:42,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-11-07 07:28:42,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262328303] [2021-11-07 07:28:42,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-07 07:28:42,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:42,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-07 07:28:42,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2021-11-07 07:28:42,459 INFO L87 Difference]: Start difference. First operand 122 states and 122 transitions. Second operand has 33 states, 32 states have (on average 3.3125) internal successors, (106), 18 states have internal predecessors, (106), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:42,761 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2021-11-07 07:28:42,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-11-07 07:28:42,762 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.3125) internal successors, (106), 18 states have internal predecessors, (106), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-11-07 07:28:42,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:42,764 INFO L225 Difference]: With dead ends: 135 [2021-11-07 07:28:42,764 INFO L226 Difference]: Without dead ends: 134 [2021-11-07 07:28:42,768 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=648, Invalid=1608, Unknown=0, NotChecked=0, Total=2256 [2021-11-07 07:28:42,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-07 07:28:42,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 130. [2021-11-07 07:28:42,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 113 states have (on average 1.008849557522124) internal successors, (114), 113 states have internal predecessors, (114), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 130 transitions. [2021-11-07 07:28:42,777 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 130 transitions. Word has length 121 [2021-11-07 07:28:42,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:42,777 INFO L470 AbstractCegarLoop]: Abstraction has 130 states and 130 transitions. [2021-11-07 07:28:42,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.3125) internal successors, (106), 18 states have internal predecessors, (106), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:42,778 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 130 transitions. [2021-11-07 07:28:42,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-07 07:28:42,779 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:42,779 INFO L513 BasicCegarLoop]: trace histogram [16, 16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:42,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:42,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-11-07 07:28:42,995 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:42,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:42,995 INFO L85 PathProgramCache]: Analyzing trace with hash 760377103, now seen corresponding path program 15 times [2021-11-07 07:28:42,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:42,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983708902] [2021-11-07 07:28:42,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:42,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:43,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:43,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983708902] [2021-11-07 07:28:43,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983708902] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:43,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283201458] [2021-11-07 07:28:43,474 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:28:43,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:43,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:43,483 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:43,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-07 07:28:43,929 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-11-07 07:28:43,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:43,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-07 07:28:43,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:44,304 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:44,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283201458] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:44,305 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:44,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-11-07 07:28:44,306 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613754711] [2021-11-07 07:28:44,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-11-07 07:28:44,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:44,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-11-07 07:28:44,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=883, Unknown=0, NotChecked=0, Total=1190 [2021-11-07 07:28:44,308 INFO L87 Difference]: Start difference. First operand 130 states and 130 transitions. Second operand has 35 states, 34 states have (on average 3.323529411764706) internal successors, (113), 19 states have internal predecessors, (113), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:44,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:44,630 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2021-11-07 07:28:44,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-07 07:28:44,631 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 3.323529411764706) internal successors, (113), 19 states have internal predecessors, (113), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 129 [2021-11-07 07:28:44,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:44,632 INFO L225 Difference]: With dead ends: 143 [2021-11-07 07:28:44,633 INFO L226 Difference]: Without dead ends: 142 [2021-11-07 07:28:44,634 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 345 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=731, Invalid=1819, Unknown=0, NotChecked=0, Total=2550 [2021-11-07 07:28:44,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-11-07 07:28:44,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2021-11-07 07:28:44,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 120 states have internal predecessors, (121), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:44,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 138 transitions. [2021-11-07 07:28:44,643 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 138 transitions. Word has length 129 [2021-11-07 07:28:44,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:44,644 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 138 transitions. [2021-11-07 07:28:44,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 3.323529411764706) internal successors, (113), 19 states have internal predecessors, (113), 16 states have call successors, (16), 16 states have call predecessors, (16), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:44,644 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 138 transitions. [2021-11-07 07:28:44,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-07 07:28:44,646 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:44,646 INFO L513 BasicCegarLoop]: trace histogram [17, 17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:44,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:44,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:44,867 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:44,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:44,867 INFO L85 PathProgramCache]: Analyzing trace with hash -479855412, now seen corresponding path program 16 times [2021-11-07 07:28:44,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:44,867 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228264239] [2021-11-07 07:28:44,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:44,868 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:44,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:45,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 1024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:45,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:45,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228264239] [2021-11-07 07:28:45,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228264239] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:45,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601308824] [2021-11-07 07:28:45,338 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:28:45,338 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:45,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:45,339 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:45,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-07 07:28:45,717 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:28:45,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:45,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-07 07:28:45,722 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:46,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 1024 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:46,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601308824] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:46,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:46,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-11-07 07:28:46,110 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716689739] [2021-11-07 07:28:46,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-07 07:28:46,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:46,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-07 07:28:46,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2021-11-07 07:28:46,112 INFO L87 Difference]: Start difference. First operand 138 states and 138 transitions. Second operand has 37 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 20 states have internal predecessors, (120), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:46,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:46,496 INFO L93 Difference]: Finished difference Result 151 states and 151 transitions. [2021-11-07 07:28:46,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-07 07:28:46,497 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 20 states have internal predecessors, (120), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2021-11-07 07:28:46,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:46,498 INFO L225 Difference]: With dead ends: 151 [2021-11-07 07:28:46,498 INFO L226 Difference]: Without dead ends: 150 [2021-11-07 07:28:46,499 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=819, Invalid=2043, Unknown=0, NotChecked=0, Total=2862 [2021-11-07 07:28:46,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-07 07:28:46,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 146. [2021-11-07 07:28:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 127 states have (on average 1.0078740157480315) internal successors, (128), 127 states have internal predecessors, (128), 18 states have call successors, (18), 18 states have call predecessors, (18), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:46,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2021-11-07 07:28:46,513 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 137 [2021-11-07 07:28:46,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:46,514 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2021-11-07 07:28:46,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.3333333333333335) internal successors, (120), 20 states have internal predecessors, (120), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:46,514 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2021-11-07 07:28:46,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-11-07 07:28:46,516 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:46,516 INFO L513 BasicCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:46,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:46,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-07 07:28:46,743 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:46,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:46,743 INFO L85 PathProgramCache]: Analyzing trace with hash -31294071, now seen corresponding path program 17 times [2021-11-07 07:28:46,743 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:46,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967673588] [2021-11-07 07:28:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:46,743 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:46,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:47,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:47,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:47,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967673588] [2021-11-07 07:28:47,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967673588] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:47,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [412511267] [2021-11-07 07:28:47,355 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:28:47,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:47,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:47,358 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:47,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-07 07:28:47,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-11-07 07:28:47,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:47,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 38 conjunts are in the unsatisfiable core [2021-11-07 07:28:47,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:48,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:48,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [412511267] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:48,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:48,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-11-07 07:28:48,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817863269] [2021-11-07 07:28:48,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-11-07 07:28:48,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:48,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-11-07 07:28:48,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=381, Invalid=1101, Unknown=0, NotChecked=0, Total=1482 [2021-11-07 07:28:48,300 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 21 states have internal predecessors, (127), 18 states have call successors, (18), 18 states have call predecessors, (18), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:48,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:48,663 INFO L93 Difference]: Finished difference Result 159 states and 159 transitions. [2021-11-07 07:28:48,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-07 07:28:48,663 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 21 states have internal predecessors, (127), 18 states have call successors, (18), 18 states have call predecessors, (18), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-11-07 07:28:48,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:48,664 INFO L225 Difference]: With dead ends: 159 [2021-11-07 07:28:48,664 INFO L226 Difference]: Without dead ends: 158 [2021-11-07 07:28:48,665 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=912, Invalid=2280, Unknown=0, NotChecked=0, Total=3192 [2021-11-07 07:28:48,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-11-07 07:28:48,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 154. [2021-11-07 07:28:48,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 134 states have (on average 1.007462686567164) internal successors, (135), 134 states have internal predecessors, (135), 19 states have call successors, (19), 19 states have call predecessors, (19), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:48,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2021-11-07 07:28:48,677 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 145 [2021-11-07 07:28:48,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:48,678 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2021-11-07 07:28:48,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 3.3421052631578947) internal successors, (127), 21 states have internal predecessors, (127), 18 states have call successors, (18), 18 states have call predecessors, (18), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:48,679 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2021-11-07 07:28:48,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-11-07 07:28:48,680 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:48,681 INFO L513 BasicCegarLoop]: trace histogram [19, 19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:48,717 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:48,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-11-07 07:28:48,907 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:48,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:48,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1256517958, now seen corresponding path program 18 times [2021-11-07 07:28:48,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:48,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174346378] [2021-11-07 07:28:48,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:48,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:49,462 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:49,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:49,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174346378] [2021-11-07 07:28:49,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174346378] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:49,463 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877635981] [2021-11-07 07:28:49,463 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:28:49,463 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:49,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:49,464 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:49,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-07 07:28:49,954 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-11-07 07:28:49,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:49,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 40 conjunts are in the unsatisfiable core [2021-11-07 07:28:49,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 1296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:50,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877635981] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:50,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:50,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-11-07 07:28:50,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641284368] [2021-11-07 07:28:50,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-11-07 07:28:50,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:50,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-11-07 07:28:50,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=421, Invalid=1219, Unknown=0, NotChecked=0, Total=1640 [2021-11-07 07:28:50,390 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand has 41 states, 40 states have (on average 3.35) internal successors, (134), 22 states have internal predecessors, (134), 19 states have call successors, (19), 19 states have call predecessors, (19), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:50,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:50,790 INFO L93 Difference]: Finished difference Result 167 states and 167 transitions. [2021-11-07 07:28:50,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-11-07 07:28:50,791 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 3.35) internal successors, (134), 22 states have internal predecessors, (134), 19 states have call successors, (19), 19 states have call predecessors, (19), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-11-07 07:28:50,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:50,792 INFO L225 Difference]: With dead ends: 167 [2021-11-07 07:28:50,792 INFO L226 Difference]: Without dead ends: 166 [2021-11-07 07:28:50,793 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1010, Invalid=2530, Unknown=0, NotChecked=0, Total=3540 [2021-11-07 07:28:50,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-11-07 07:28:50,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 162. [2021-11-07 07:28:50,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 141 states have (on average 1.0070921985815602) internal successors, (142), 141 states have internal predecessors, (142), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:50,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2021-11-07 07:28:50,804 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 153 [2021-11-07 07:28:50,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:50,805 INFO L470 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2021-11-07 07:28:50,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 3.35) internal successors, (134), 22 states have internal predecessors, (134), 19 states have call successors, (19), 19 states have call predecessors, (19), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:50,805 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2021-11-07 07:28:50,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2021-11-07 07:28:50,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:50,807 INFO L513 BasicCegarLoop]: trace histogram [20, 20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:50,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:51,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:51,035 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:51,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:51,035 INFO L85 PathProgramCache]: Analyzing trace with hash -368420861, now seen corresponding path program 19 times [2021-11-07 07:28:51,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:51,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811371047] [2021-11-07 07:28:51,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:51,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 1444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:51,693 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:51,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811371047] [2021-11-07 07:28:51,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811371047] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:51,693 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059953261] [2021-11-07 07:28:51,694 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:28:51,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:51,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:51,694 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:51,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-07 07:28:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:52,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 360 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-07 07:28:52,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:52,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1444 backedges. 0 proven. 1444 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:52,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059953261] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:52,711 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:52,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-11-07 07:28:52,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781036339] [2021-11-07 07:28:52,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-11-07 07:28:52,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:52,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-11-07 07:28:52,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=463, Invalid=1343, Unknown=0, NotChecked=0, Total=1806 [2021-11-07 07:28:52,714 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 43 states, 42 states have (on average 3.357142857142857) internal successors, (141), 23 states have internal predecessors, (141), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:53,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:53,132 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2021-11-07 07:28:53,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-11-07 07:28:53,132 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 3.357142857142857) internal successors, (141), 23 states have internal predecessors, (141), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2021-11-07 07:28:53,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:53,134 INFO L225 Difference]: With dead ends: 175 [2021-11-07 07:28:53,134 INFO L226 Difference]: Without dead ends: 174 [2021-11-07 07:28:53,135 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1113, Invalid=2793, Unknown=0, NotChecked=0, Total=3906 [2021-11-07 07:28:53,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2021-11-07 07:28:53,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 170. [2021-11-07 07:28:53,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 148 states have (on average 1.0067567567567568) internal successors, (149), 148 states have internal predecessors, (149), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:53,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 170 transitions. [2021-11-07 07:28:53,143 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 170 transitions. Word has length 161 [2021-11-07 07:28:53,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:53,143 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 170 transitions. [2021-11-07 07:28:53,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 3.357142857142857) internal successors, (141), 23 states have internal predecessors, (141), 20 states have call successors, (20), 20 states have call predecessors, (20), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:53,144 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 170 transitions. [2021-11-07 07:28:53,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-11-07 07:28:53,145 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:53,145 INFO L513 BasicCegarLoop]: trace histogram [21, 21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:53,174 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:53,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-07 07:28:53,361 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:53,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1324331456, now seen corresponding path program 20 times [2021-11-07 07:28:53,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:53,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415449119] [2021-11-07 07:28:53,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:53,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:53,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:54,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 1600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:54,004 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:54,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415449119] [2021-11-07 07:28:54,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415449119] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:54,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275468512] [2021-11-07 07:28:54,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:28:54,005 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:54,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:54,014 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:54,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-07 07:28:54,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:28:54,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:54,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-07 07:28:54,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:55,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 0 proven. 1600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:55,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275468512] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:55,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:55,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-11-07 07:28:55,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553810158] [2021-11-07 07:28:55,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-07 07:28:55,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:55,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-07 07:28:55,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=507, Invalid=1473, Unknown=0, NotChecked=0, Total=1980 [2021-11-07 07:28:55,058 INFO L87 Difference]: Start difference. First operand 170 states and 170 transitions. Second operand has 45 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 24 states have internal predecessors, (148), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:55,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:55,524 INFO L93 Difference]: Finished difference Result 183 states and 183 transitions. [2021-11-07 07:28:55,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-07 07:28:55,524 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 24 states have internal predecessors, (148), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 169 [2021-11-07 07:28:55,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:55,526 INFO L225 Difference]: With dead ends: 183 [2021-11-07 07:28:55,526 INFO L226 Difference]: Without dead ends: 182 [2021-11-07 07:28:55,528 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 610 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1221, Invalid=3069, Unknown=0, NotChecked=0, Total=4290 [2021-11-07 07:28:55,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-11-07 07:28:55,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 178. [2021-11-07 07:28:55,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 155 states have (on average 1.0064516129032257) internal successors, (156), 155 states have internal predecessors, (156), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:55,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 178 transitions. [2021-11-07 07:28:55,539 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 178 transitions. Word has length 169 [2021-11-07 07:28:55,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:55,540 INFO L470 AbstractCegarLoop]: Abstraction has 178 states and 178 transitions. [2021-11-07 07:28:55,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 3.3636363636363638) internal successors, (148), 24 states have internal predecessors, (148), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:55,540 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 178 transitions. [2021-11-07 07:28:55,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-07 07:28:55,541 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:55,542 INFO L513 BasicCegarLoop]: trace histogram [22, 22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:55,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:55,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-07 07:28:55,755 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:55,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:55,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1072823933, now seen corresponding path program 21 times [2021-11-07 07:28:55,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:55,755 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367431423] [2021-11-07 07:28:55,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:55,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:56,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 1764 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:56,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:56,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367431423] [2021-11-07 07:28:56,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367431423] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:56,573 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536381717] [2021-11-07 07:28:56,573 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:28:56,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:56,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:56,574 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:56,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-07 07:28:57,211 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-11-07 07:28:57,211 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:57,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-07 07:28:57,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:28:57,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1764 backedges. 0 proven. 1764 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:57,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536381717] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:57,671 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:28:57,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-11-07 07:28:57,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775689850] [2021-11-07 07:28:57,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-11-07 07:28:57,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:28:57,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-11-07 07:28:57,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=553, Invalid=1609, Unknown=0, NotChecked=0, Total=2162 [2021-11-07 07:28:57,673 INFO L87 Difference]: Start difference. First operand 178 states and 178 transitions. Second operand has 47 states, 46 states have (on average 3.369565217391304) internal successors, (155), 25 states have internal predecessors, (155), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:58,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:28:58,227 INFO L93 Difference]: Finished difference Result 191 states and 191 transitions. [2021-11-07 07:28:58,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-11-07 07:28:58,227 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.369565217391304) internal successors, (155), 25 states have internal predecessors, (155), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 177 [2021-11-07 07:28:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:28:58,229 INFO L225 Difference]: With dead ends: 191 [2021-11-07 07:28:58,230 INFO L226 Difference]: Without dead ends: 190 [2021-11-07 07:28:58,233 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1334, Invalid=3358, Unknown=0, NotChecked=0, Total=4692 [2021-11-07 07:28:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-11-07 07:28:58,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2021-11-07 07:28:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.0061728395061729) internal successors, (163), 162 states have internal predecessors, (163), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2021-11-07 07:28:58,248 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 177 [2021-11-07 07:28:58,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:28:58,252 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2021-11-07 07:28:58,253 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.369565217391304) internal successors, (155), 25 states have internal predecessors, (155), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:28:58,253 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2021-11-07 07:28:58,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-07 07:28:58,256 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:28:58,256 INFO L513 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2021-11-07 07:28:58,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-11-07 07:28:58,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-07 07:28:58,479 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:28:58,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:28:58,479 INFO L85 PathProgramCache]: Analyzing trace with hash -697418182, now seen corresponding path program 22 times [2021-11-07 07:28:58,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:28:58,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554592749] [2021-11-07 07:28:58,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:28:58,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:28:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:28:59,312 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:28:59,312 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:28:59,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554592749] [2021-11-07 07:28:59,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554592749] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:28:59,313 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889215538] [2021-11-07 07:28:59,313 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:28:59,313 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:28:59,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:28:59,315 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:28:59,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-11-07 07:28:59,986 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:28:59,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:28:59,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-07 07:28:59,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:00,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:00,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889215538] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:00,558 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:00,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-11-07 07:29:00,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864720231] [2021-11-07 07:29:00,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-07 07:29:00,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-07 07:29:00,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=601, Invalid=1751, Unknown=0, NotChecked=0, Total=2352 [2021-11-07 07:29:00,560 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 49 states, 48 states have (on average 3.375) internal successors, (162), 26 states have internal predecessors, (162), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:01,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:01,053 INFO L93 Difference]: Finished difference Result 199 states and 199 transitions. [2021-11-07 07:29:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-11-07 07:29:01,053 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 3.375) internal successors, (162), 26 states have internal predecessors, (162), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-11-07 07:29:01,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:01,055 INFO L225 Difference]: With dead ends: 199 [2021-11-07 07:29:01,056 INFO L226 Difference]: Without dead ends: 198 [2021-11-07 07:29:01,058 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1452, Invalid=3660, Unknown=0, NotChecked=0, Total=5112 [2021-11-07 07:29:01,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-07 07:29:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 194. [2021-11-07 07:29:01,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 169 states have (on average 1.0059171597633136) internal successors, (170), 169 states have internal predecessors, (170), 24 states have call successors, (24), 24 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:01,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2021-11-07 07:29:01,072 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 185 [2021-11-07 07:29:01,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:01,072 INFO L470 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2021-11-07 07:29:01,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 3.375) internal successors, (162), 26 states have internal predecessors, (162), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:01,073 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2021-11-07 07:29:01,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2021-11-07 07:29:01,074 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:01,074 INFO L513 BasicCegarLoop]: trace histogram [24, 24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:01,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:01,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:01,299 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2126606583, now seen corresponding path program 23 times [2021-11-07 07:29:01,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:01,299 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109973583] [2021-11-07 07:29:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:01,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:01,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:02,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:02,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109973583] [2021-11-07 07:29:02,183 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109973583] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:02,183 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65069154] [2021-11-07 07:29:02,184 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:29:02,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:02,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:02,185 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:02,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-07 07:29:02,958 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-11-07 07:29:02,959 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:02,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 50 conjunts are in the unsatisfiable core [2021-11-07 07:29:02,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:03,504 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 0 proven. 2116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:03,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65069154] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:03,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:03,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-11-07 07:29:03,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363129491] [2021-11-07 07:29:03,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-11-07 07:29:03,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:03,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-11-07 07:29:03,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=651, Invalid=1899, Unknown=0, NotChecked=0, Total=2550 [2021-11-07 07:29:03,508 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand has 51 states, 50 states have (on average 3.38) internal successors, (169), 27 states have internal predecessors, (169), 24 states have call successors, (24), 24 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:04,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:04,041 INFO L93 Difference]: Finished difference Result 207 states and 207 transitions. [2021-11-07 07:29:04,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-11-07 07:29:04,041 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 3.38) internal successors, (169), 27 states have internal predecessors, (169), 24 states have call successors, (24), 24 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 193 [2021-11-07 07:29:04,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:04,043 INFO L225 Difference]: With dead ends: 207 [2021-11-07 07:29:04,043 INFO L226 Difference]: Without dead ends: 206 [2021-11-07 07:29:04,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 805 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1575, Invalid=3975, Unknown=0, NotChecked=0, Total=5550 [2021-11-07 07:29:04,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-07 07:29:04,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 202. [2021-11-07 07:29:04,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 176 states have (on average 1.0056818181818181) internal successors, (177), 176 states have internal predecessors, (177), 25 states have call successors, (25), 25 states have call predecessors, (25), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 202 transitions. [2021-11-07 07:29:04,058 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 202 transitions. Word has length 193 [2021-11-07 07:29:04,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:04,058 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 202 transitions. [2021-11-07 07:29:04,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 3.38) internal successors, (169), 27 states have internal predecessors, (169), 24 states have call successors, (24), 24 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:04,059 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 202 transitions. [2021-11-07 07:29:04,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-11-07 07:29:04,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:04,061 INFO L513 BasicCegarLoop]: trace histogram [25, 25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:04,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:04,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-11-07 07:29:04,267 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:04,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:04,267 INFO L85 PathProgramCache]: Analyzing trace with hash -129460556, now seen corresponding path program 24 times [2021-11-07 07:29:04,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:04,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028097527] [2021-11-07 07:29:04,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:04,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:04,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:05,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:05,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:05,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028097527] [2021-11-07 07:29:05,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028097527] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:05,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633518472] [2021-11-07 07:29:05,449 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:29:05,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:05,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:05,450 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:05,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-11-07 07:29:06,343 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-11-07 07:29:06,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:06,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 52 conjunts are in the unsatisfiable core [2021-11-07 07:29:06,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:06,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2304 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:06,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633518472] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:06,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:06,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-11-07 07:29:06,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338354983] [2021-11-07 07:29:06,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-11-07 07:29:06,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:06,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-11-07 07:29:06,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=2053, Unknown=0, NotChecked=0, Total=2756 [2021-11-07 07:29:06,880 INFO L87 Difference]: Start difference. First operand 202 states and 202 transitions. Second operand has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 28 states have internal predecessors, (176), 25 states have call successors, (25), 25 states have call predecessors, (25), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:07,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:07,642 INFO L93 Difference]: Finished difference Result 215 states and 215 transitions. [2021-11-07 07:29:07,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-11-07 07:29:07,643 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 28 states have internal predecessors, (176), 25 states have call successors, (25), 25 states have call predecessors, (25), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 201 [2021-11-07 07:29:07,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:07,645 INFO L225 Difference]: With dead ends: 215 [2021-11-07 07:29:07,645 INFO L226 Difference]: Without dead ends: 214 [2021-11-07 07:29:07,647 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 876 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1703, Invalid=4303, Unknown=0, NotChecked=0, Total=6006 [2021-11-07 07:29:07,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-07 07:29:07,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 210. [2021-11-07 07:29:07,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 183 states have (on average 1.005464480874317) internal successors, (184), 183 states have internal predecessors, (184), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:07,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 210 transitions. [2021-11-07 07:29:07,671 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 210 transitions. Word has length 201 [2021-11-07 07:29:07,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:07,671 INFO L470 AbstractCegarLoop]: Abstraction has 210 states and 210 transitions. [2021-11-07 07:29:07,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 28 states have internal predecessors, (176), 25 states have call successors, (25), 25 states have call predecessors, (25), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:07,672 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 210 transitions. [2021-11-07 07:29:07,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-11-07 07:29:07,674 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:07,674 INFO L513 BasicCegarLoop]: trace histogram [26, 26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:07,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:07,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-07 07:29:07,887 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:07,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:07,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1432399729, now seen corresponding path program 25 times [2021-11-07 07:29:07,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:07,888 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173090285] [2021-11-07 07:29:07,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:07,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2500 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:08,879 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:08,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173090285] [2021-11-07 07:29:08,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173090285] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:08,879 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611340581] [2021-11-07 07:29:08,879 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:29:08,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:08,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:08,885 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:08,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-11-07 07:29:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:09,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 54 conjunts are in the unsatisfiable core [2021-11-07 07:29:09,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:10,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2500 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:10,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611340581] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:10,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:10,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-11-07 07:29:10,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140881221] [2021-11-07 07:29:10,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-11-07 07:29:10,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:10,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-11-07 07:29:10,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=757, Invalid=2213, Unknown=0, NotChecked=0, Total=2970 [2021-11-07 07:29:10,236 INFO L87 Difference]: Start difference. First operand 210 states and 210 transitions. Second operand has 55 states, 54 states have (on average 3.388888888888889) internal successors, (183), 29 states have internal predecessors, (183), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:10,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:10,862 INFO L93 Difference]: Finished difference Result 223 states and 223 transitions. [2021-11-07 07:29:10,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-11-07 07:29:10,864 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 3.388888888888889) internal successors, (183), 29 states have internal predecessors, (183), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2021-11-07 07:29:10,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:10,865 INFO L225 Difference]: With dead ends: 223 [2021-11-07 07:29:10,865 INFO L226 Difference]: Without dead ends: 222 [2021-11-07 07:29:10,866 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 950 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1836, Invalid=4644, Unknown=0, NotChecked=0, Total=6480 [2021-11-07 07:29:10,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-07 07:29:10,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 218. [2021-11-07 07:29:10,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 190 states have (on average 1.0052631578947369) internal successors, (191), 190 states have internal predecessors, (191), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:10,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 218 transitions. [2021-11-07 07:29:10,882 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 218 transitions. Word has length 209 [2021-11-07 07:29:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:10,882 INFO L470 AbstractCegarLoop]: Abstraction has 218 states and 218 transitions. [2021-11-07 07:29:10,883 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 3.388888888888889) internal successors, (183), 29 states have internal predecessors, (183), 26 states have call successors, (26), 26 states have call predecessors, (26), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 218 transitions. [2021-11-07 07:29:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-07 07:29:10,884 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:10,885 INFO L513 BasicCegarLoop]: trace histogram [27, 27, 27, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:10,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:11,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:11,107 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:11,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:11,107 INFO L85 PathProgramCache]: Analyzing trace with hash -77153490, now seen corresponding path program 26 times [2021-11-07 07:29:11,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:11,107 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664179583] [2021-11-07 07:29:11,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:11,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:11,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:12,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2704 backedges. 0 proven. 2704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:12,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:12,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664179583] [2021-11-07 07:29:12,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664179583] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:12,118 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145706195] [2021-11-07 07:29:12,118 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:29:12,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:12,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:12,119 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:12,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-11-07 07:29:13,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:29:13,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:13,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 56 conjunts are in the unsatisfiable core [2021-11-07 07:29:13,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:13,574 INFO L134 CoverageAnalysis]: Checked inductivity of 2704 backedges. 0 proven. 2704 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:13,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145706195] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:13,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:13,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-11-07 07:29:13,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641693097] [2021-11-07 07:29:13,576 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-11-07 07:29:13,576 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:13,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-11-07 07:29:13,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=813, Invalid=2379, Unknown=0, NotChecked=0, Total=3192 [2021-11-07 07:29:13,578 INFO L87 Difference]: Start difference. First operand 218 states and 218 transitions. Second operand has 57 states, 56 states have (on average 3.392857142857143) internal successors, (190), 30 states have internal predecessors, (190), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:14,220 INFO L93 Difference]: Finished difference Result 231 states and 231 transitions. [2021-11-07 07:29:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-11-07 07:29:14,221 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 3.392857142857143) internal successors, (190), 30 states have internal predecessors, (190), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2021-11-07 07:29:14,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:14,222 INFO L225 Difference]: With dead ends: 231 [2021-11-07 07:29:14,223 INFO L226 Difference]: Without dead ends: 230 [2021-11-07 07:29:14,224 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1027 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1974, Invalid=4998, Unknown=0, NotChecked=0, Total=6972 [2021-11-07 07:29:14,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-07 07:29:14,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 226. [2021-11-07 07:29:14,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 197 states have (on average 1.0050761421319796) internal successors, (198), 197 states have internal predecessors, (198), 28 states have call successors, (28), 28 states have call predecessors, (28), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 226 transitions. [2021-11-07 07:29:14,241 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 226 transitions. Word has length 217 [2021-11-07 07:29:14,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:14,241 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 226 transitions. [2021-11-07 07:29:14,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 3.392857142857143) internal successors, (190), 30 states have internal predecessors, (190), 27 states have call successors, (27), 27 states have call predecessors, (27), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:14,242 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 226 transitions. [2021-11-07 07:29:14,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-07 07:29:14,243 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:14,244 INFO L513 BasicCegarLoop]: trace histogram [28, 28, 28, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:14,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:14,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-07 07:29:14,455 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:14,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:14,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1565017621, now seen corresponding path program 27 times [2021-11-07 07:29:14,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:14,456 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498709128] [2021-11-07 07:29:14,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:14,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:15,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2916 backedges. 0 proven. 2916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:15,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:15,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498709128] [2021-11-07 07:29:15,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498709128] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:15,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92488840] [2021-11-07 07:29:15,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:29:15,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:15,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:15,482 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:15,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-11-07 07:29:16,522 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-11-07 07:29:16,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:16,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 58 conjunts are in the unsatisfiable core [2021-11-07 07:29:16,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:17,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2916 backedges. 0 proven. 2916 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:17,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92488840] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:17,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:17,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-11-07 07:29:17,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445017169] [2021-11-07 07:29:17,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-11-07 07:29:17,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:17,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-11-07 07:29:17,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=2551, Unknown=0, NotChecked=0, Total=3422 [2021-11-07 07:29:17,165 INFO L87 Difference]: Start difference. First operand 226 states and 226 transitions. Second operand has 59 states, 58 states have (on average 3.396551724137931) internal successors, (197), 31 states have internal predecessors, (197), 28 states have call successors, (28), 28 states have call predecessors, (28), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:17,839 INFO L93 Difference]: Finished difference Result 239 states and 239 transitions. [2021-11-07 07:29:17,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-11-07 07:29:17,840 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 3.396551724137931) internal successors, (197), 31 states have internal predecessors, (197), 28 states have call successors, (28), 28 states have call predecessors, (28), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-11-07 07:29:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:17,841 INFO L225 Difference]: With dead ends: 239 [2021-11-07 07:29:17,841 INFO L226 Difference]: Without dead ends: 238 [2021-11-07 07:29:17,842 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1107 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2117, Invalid=5365, Unknown=0, NotChecked=0, Total=7482 [2021-11-07 07:29:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2021-11-07 07:29:17,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 234. [2021-11-07 07:29:17,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 204 states have (on average 1.0049019607843137) internal successors, (205), 204 states have internal predecessors, (205), 29 states have call successors, (29), 29 states have call predecessors, (29), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 234 transitions. [2021-11-07 07:29:17,860 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 234 transitions. Word has length 225 [2021-11-07 07:29:17,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:17,861 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 234 transitions. [2021-11-07 07:29:17,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 3.396551724137931) internal successors, (197), 31 states have internal predecessors, (197), 28 states have call successors, (28), 28 states have call predecessors, (28), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:17,861 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 234 transitions. [2021-11-07 07:29:17,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-11-07 07:29:17,863 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:17,863 INFO L513 BasicCegarLoop]: trace histogram [29, 29, 29, 28, 28, 28, 28, 28, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:17,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:18,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:18,083 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:18,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:18,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1454418856, now seen corresponding path program 28 times [2021-11-07 07:29:18,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:18,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130958169] [2021-11-07 07:29:18,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:18,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:19,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 0 proven. 3136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:19,148 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:19,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130958169] [2021-11-07 07:29:19,148 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130958169] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:19,148 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1209234253] [2021-11-07 07:29:19,148 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:29:19,148 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:19,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:19,150 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:19,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-11-07 07:29:20,232 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:29:20,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:20,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 60 conjunts are in the unsatisfiable core [2021-11-07 07:29:20,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:20,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3136 backedges. 0 proven. 3136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:20,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1209234253] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:20,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:20,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-11-07 07:29:20,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672138919] [2021-11-07 07:29:20,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-11-07 07:29:20,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:20,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-11-07 07:29:20,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=931, Invalid=2729, Unknown=0, NotChecked=0, Total=3660 [2021-11-07 07:29:20,823 INFO L87 Difference]: Start difference. First operand 234 states and 234 transitions. Second operand has 61 states, 60 states have (on average 3.4) internal successors, (204), 32 states have internal predecessors, (204), 29 states have call successors, (29), 29 states have call predecessors, (29), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:21,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:21,617 INFO L93 Difference]: Finished difference Result 247 states and 247 transitions. [2021-11-07 07:29:21,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-11-07 07:29:21,618 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 3.4) internal successors, (204), 32 states have internal predecessors, (204), 29 states have call successors, (29), 29 states have call predecessors, (29), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 233 [2021-11-07 07:29:21,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:21,620 INFO L225 Difference]: With dead ends: 247 [2021-11-07 07:29:21,620 INFO L226 Difference]: Without dead ends: 246 [2021-11-07 07:29:21,621 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1190 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2265, Invalid=5745, Unknown=0, NotChecked=0, Total=8010 [2021-11-07 07:29:21,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2021-11-07 07:29:21,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 242. [2021-11-07 07:29:21,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 211 states have (on average 1.004739336492891) internal successors, (212), 211 states have internal predecessors, (212), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:21,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 242 transitions. [2021-11-07 07:29:21,639 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 242 transitions. Word has length 233 [2021-11-07 07:29:21,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:21,639 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 242 transitions. [2021-11-07 07:29:21,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 3.4) internal successors, (204), 32 states have internal predecessors, (204), 29 states have call successors, (29), 29 states have call predecessors, (29), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:21,640 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 242 transitions. [2021-11-07 07:29:21,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-07 07:29:21,641 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:21,642 INFO L513 BasicCegarLoop]: trace histogram [30, 30, 30, 29, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:21,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:21,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-07 07:29:21,863 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:21,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:21,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1974374501, now seen corresponding path program 29 times [2021-11-07 07:29:21,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:21,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369789949] [2021-11-07 07:29:21,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:21,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:23,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3364 backedges. 0 proven. 3364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:23,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:23,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369789949] [2021-11-07 07:29:23,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369789949] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:23,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180422601] [2021-11-07 07:29:23,184 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:29:23,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:23,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:23,191 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:23,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-11-07 07:29:24,371 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-11-07 07:29:24,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:24,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-07 07:29:24,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:24,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3364 backedges. 0 proven. 3364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:24,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180422601] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:24,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:24,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-11-07 07:29:24,989 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245235066] [2021-11-07 07:29:24,990 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-11-07 07:29:24,990 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:24,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-11-07 07:29:24,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=993, Invalid=2913, Unknown=0, NotChecked=0, Total=3906 [2021-11-07 07:29:24,991 INFO L87 Difference]: Start difference. First operand 242 states and 242 transitions. Second operand has 63 states, 62 states have (on average 3.403225806451613) internal successors, (211), 33 states have internal predecessors, (211), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:25,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:25,763 INFO L93 Difference]: Finished difference Result 255 states and 255 transitions. [2021-11-07 07:29:25,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-11-07 07:29:25,764 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 3.403225806451613) internal successors, (211), 33 states have internal predecessors, (211), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2021-11-07 07:29:25,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:25,766 INFO L225 Difference]: With dead ends: 255 [2021-11-07 07:29:25,766 INFO L226 Difference]: Without dead ends: 254 [2021-11-07 07:29:25,766 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2418, Invalid=6138, Unknown=0, NotChecked=0, Total=8556 [2021-11-07 07:29:25,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-07 07:29:25,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 250. [2021-11-07 07:29:25,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 218 states have (on average 1.0045871559633028) internal successors, (219), 218 states have internal predecessors, (219), 31 states have call successors, (31), 31 states have call predecessors, (31), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:25,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 250 transitions. [2021-11-07 07:29:25,786 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 250 transitions. Word has length 241 [2021-11-07 07:29:25,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:25,786 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 250 transitions. [2021-11-07 07:29:25,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 3.403225806451613) internal successors, (211), 33 states have internal predecessors, (211), 30 states have call successors, (30), 30 states have call predecessors, (30), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:25,787 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 250 transitions. [2021-11-07 07:29:25,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-07 07:29:25,789 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:25,789 INFO L513 BasicCegarLoop]: trace histogram [31, 31, 31, 30, 30, 30, 30, 30, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:25,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:26,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-11-07 07:29:26,013 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:26,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:26,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1324455902, now seen corresponding path program 30 times [2021-11-07 07:29:26,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:26,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701560795] [2021-11-07 07:29:26,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:26,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 3600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:27,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:27,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701560795] [2021-11-07 07:29:27,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701560795] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:27,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091105760] [2021-11-07 07:29:27,357 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:29:27,357 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:27,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:27,358 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:27,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-11-07 07:29:28,619 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-11-07 07:29:28,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:28,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 64 conjunts are in the unsatisfiable core [2021-11-07 07:29:28,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:29,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3600 backedges. 0 proven. 3600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:29,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091105760] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:29,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:29,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-11-07 07:29:29,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496056022] [2021-11-07 07:29:29,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-11-07 07:29:29,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:29,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-11-07 07:29:29,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2021-11-07 07:29:29,257 INFO L87 Difference]: Start difference. First operand 250 states and 250 transitions. Second operand has 65 states, 64 states have (on average 3.40625) internal successors, (218), 34 states have internal predecessors, (218), 31 states have call successors, (31), 31 states have call predecessors, (31), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:30,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:30,050 INFO L93 Difference]: Finished difference Result 263 states and 263 transitions. [2021-11-07 07:29:30,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-11-07 07:29:30,050 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 3.40625) internal successors, (218), 34 states have internal predecessors, (218), 31 states have call successors, (31), 31 states have call predecessors, (31), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 249 [2021-11-07 07:29:30,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:30,052 INFO L225 Difference]: With dead ends: 263 [2021-11-07 07:29:30,052 INFO L226 Difference]: Without dead ends: 262 [2021-11-07 07:29:30,053 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2576, Invalid=6544, Unknown=0, NotChecked=0, Total=9120 [2021-11-07 07:29:30,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-11-07 07:29:30,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 258. [2021-11-07 07:29:30,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 225 states have (on average 1.0044444444444445) internal successors, (226), 225 states have internal predecessors, (226), 32 states have call successors, (32), 32 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:30,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 258 transitions. [2021-11-07 07:29:30,070 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 258 transitions. Word has length 249 [2021-11-07 07:29:30,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:30,070 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 258 transitions. [2021-11-07 07:29:30,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 3.40625) internal successors, (218), 34 states have internal predecessors, (218), 31 states have call successors, (31), 31 states have call predecessors, (31), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:30,071 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 258 transitions. [2021-11-07 07:29:30,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-07 07:29:30,073 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:30,073 INFO L513 BasicCegarLoop]: trace histogram [32, 32, 32, 31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:30,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-11-07 07:29:30,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-07 07:29:30,278 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:30,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:30,278 INFO L85 PathProgramCache]: Analyzing trace with hash 221065951, now seen corresponding path program 31 times [2021-11-07 07:29:30,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:30,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475876589] [2021-11-07 07:29:30,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:30,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:31,577 INFO L134 CoverageAnalysis]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:31,578 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:31,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475876589] [2021-11-07 07:29:31,578 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475876589] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:31,578 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [5207520] [2021-11-07 07:29:31,578 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:29:31,578 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:31,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:31,580 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:31,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-11-07 07:29:32,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:32,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 66 conjunts are in the unsatisfiable core [2021-11-07 07:29:32,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:33,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3844 backedges. 0 proven. 3844 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:33,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [5207520] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:33,563 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:33,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 66 [2021-11-07 07:29:33,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893630411] [2021-11-07 07:29:33,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-11-07 07:29:33,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:33,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-11-07 07:29:33,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1123, Invalid=3299, Unknown=0, NotChecked=0, Total=4422 [2021-11-07 07:29:33,565 INFO L87 Difference]: Start difference. First operand 258 states and 258 transitions. Second operand has 67 states, 66 states have (on average 3.409090909090909) internal successors, (225), 35 states have internal predecessors, (225), 32 states have call successors, (32), 32 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:34,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:34,391 INFO L93 Difference]: Finished difference Result 271 states and 271 transitions. [2021-11-07 07:29:34,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-11-07 07:29:34,391 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 3.409090909090909) internal successors, (225), 35 states have internal predecessors, (225), 32 states have call successors, (32), 32 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 257 [2021-11-07 07:29:34,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:34,393 INFO L225 Difference]: With dead ends: 271 [2021-11-07 07:29:34,393 INFO L226 Difference]: Without dead ends: 270 [2021-11-07 07:29:34,393 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1457 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2739, Invalid=6963, Unknown=0, NotChecked=0, Total=9702 [2021-11-07 07:29:34,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-11-07 07:29:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 266. [2021-11-07 07:29:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 232 states have (on average 1.0043103448275863) internal successors, (233), 232 states have internal predecessors, (233), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:34,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 266 transitions. [2021-11-07 07:29:34,414 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 266 transitions. Word has length 257 [2021-11-07 07:29:34,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:34,414 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 266 transitions. [2021-11-07 07:29:34,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 3.409090909090909) internal successors, (225), 35 states have internal predecessors, (225), 32 states have call successors, (32), 32 states have call predecessors, (32), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:34,415 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 266 transitions. [2021-11-07 07:29:34,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-07 07:29:34,417 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:34,417 INFO L513 BasicCegarLoop]: trace histogram [33, 33, 33, 32, 32, 32, 32, 32, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:34,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:34,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-07 07:29:34,643 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:34,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:34,643 INFO L85 PathProgramCache]: Analyzing trace with hash -513281892, now seen corresponding path program 32 times [2021-11-07 07:29:34,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:34,643 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787316397] [2021-11-07 07:29:34,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:34,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:36,012 INFO L134 CoverageAnalysis]: Checked inductivity of 4096 backedges. 0 proven. 4096 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:36,012 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:36,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787316397] [2021-11-07 07:29:36,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787316397] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:36,012 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863600278] [2021-11-07 07:29:36,012 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:29:36,013 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:36,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:36,013 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:36,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-11-07 07:29:37,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:29:37,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:37,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 68 conjunts are in the unsatisfiable core [2021-11-07 07:29:37,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:38,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4096 backedges. 0 proven. 4096 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:38,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863600278] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:38,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:38,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 68 [2021-11-07 07:29:38,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568974134] [2021-11-07 07:29:38,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-11-07 07:29:38,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:38,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-11-07 07:29:38,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1191, Invalid=3501, Unknown=0, NotChecked=0, Total=4692 [2021-11-07 07:29:38,055 INFO L87 Difference]: Start difference. First operand 266 states and 266 transitions. Second operand has 69 states, 68 states have (on average 3.411764705882353) internal successors, (232), 36 states have internal predecessors, (232), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:38,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:38,995 INFO L93 Difference]: Finished difference Result 279 states and 279 transitions. [2021-11-07 07:29:38,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-11-07 07:29:38,998 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 3.411764705882353) internal successors, (232), 36 states have internal predecessors, (232), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2021-11-07 07:29:38,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:39,001 INFO L225 Difference]: With dead ends: 279 [2021-11-07 07:29:39,001 INFO L226 Difference]: Without dead ends: 278 [2021-11-07 07:29:39,002 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1552 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=2907, Invalid=7395, Unknown=0, NotChecked=0, Total=10302 [2021-11-07 07:29:39,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-07 07:29:39,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 274. [2021-11-07 07:29:39,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 239 states have (on average 1.00418410041841) internal successors, (240), 239 states have internal predecessors, (240), 34 states have call successors, (34), 34 states have call predecessors, (34), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:39,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 274 transitions. [2021-11-07 07:29:39,023 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 274 transitions. Word has length 265 [2021-11-07 07:29:39,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:39,024 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 274 transitions. [2021-11-07 07:29:39,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 3.411764705882353) internal successors, (232), 36 states have internal predecessors, (232), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:39,024 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 274 transitions. [2021-11-07 07:29:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2021-11-07 07:29:39,026 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:39,026 INFO L513 BasicCegarLoop]: trace histogram [34, 34, 34, 33, 33, 33, 33, 33, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:39,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:39,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-07 07:29:39,240 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:39,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:39,241 INFO L85 PathProgramCache]: Analyzing trace with hash -669277863, now seen corresponding path program 33 times [2021-11-07 07:29:39,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:39,241 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204203815] [2021-11-07 07:29:39,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:39,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:40,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4356 backedges. 0 proven. 4356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:40,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:40,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204203815] [2021-11-07 07:29:40,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204203815] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:40,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502214282] [2021-11-07 07:29:40,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:29:40,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:40,699 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:40,723 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:40,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-11-07 07:29:42,259 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-11-07 07:29:42,259 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:42,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 70 conjunts are in the unsatisfiable core [2021-11-07 07:29:42,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:42,965 INFO L134 CoverageAnalysis]: Checked inductivity of 4356 backedges. 0 proven. 4356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:42,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502214282] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:42,965 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:42,966 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 70 [2021-11-07 07:29:42,966 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232657376] [2021-11-07 07:29:42,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-11-07 07:29:42,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:42,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-11-07 07:29:42,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1261, Invalid=3709, Unknown=0, NotChecked=0, Total=4970 [2021-11-07 07:29:42,968 INFO L87 Difference]: Start difference. First operand 274 states and 274 transitions. Second operand has 71 states, 70 states have (on average 3.414285714285714) internal successors, (239), 37 states have internal predecessors, (239), 34 states have call successors, (34), 34 states have call predecessors, (34), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:43,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:43,956 INFO L93 Difference]: Finished difference Result 287 states and 287 transitions. [2021-11-07 07:29:43,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-11-07 07:29:43,956 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 3.414285714285714) internal successors, (239), 37 states have internal predecessors, (239), 34 states have call successors, (34), 34 states have call predecessors, (34), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2021-11-07 07:29:43,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:43,958 INFO L225 Difference]: With dead ends: 287 [2021-11-07 07:29:43,959 INFO L226 Difference]: Without dead ends: 286 [2021-11-07 07:29:43,960 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 376 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1650 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=3080, Invalid=7840, Unknown=0, NotChecked=0, Total=10920 [2021-11-07 07:29:43,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-07 07:29:43,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 282. [2021-11-07 07:29:43,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 246 states have (on average 1.0040650406504066) internal successors, (247), 246 states have internal predecessors, (247), 35 states have call successors, (35), 35 states have call predecessors, (35), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 282 transitions. [2021-11-07 07:29:43,983 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 282 transitions. Word has length 273 [2021-11-07 07:29:43,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:43,983 INFO L470 AbstractCegarLoop]: Abstraction has 282 states and 282 transitions. [2021-11-07 07:29:43,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 3.414285714285714) internal successors, (239), 37 states have internal predecessors, (239), 34 states have call successors, (34), 34 states have call predecessors, (34), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:43,984 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 282 transitions. [2021-11-07 07:29:43,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2021-11-07 07:29:43,986 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:43,986 INFO L513 BasicCegarLoop]: trace histogram [35, 35, 35, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:44,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2021-11-07 07:29:44,210 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:44,211 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:44,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:44,211 INFO L85 PathProgramCache]: Analyzing trace with hash -291158762, now seen corresponding path program 34 times [2021-11-07 07:29:44,211 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:44,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573933514] [2021-11-07 07:29:44,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:44,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:44,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:45,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4624 backedges. 0 proven. 4624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:45,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:45,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573933514] [2021-11-07 07:29:45,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573933514] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:45,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451526798] [2021-11-07 07:29:45,774 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:29:45,774 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:45,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:45,783 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:45,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-11-07 07:29:47,302 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:29:47,303 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:47,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 72 conjunts are in the unsatisfiable core [2021-11-07 07:29:47,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:48,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4624 backedges. 0 proven. 4624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:48,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451526798] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:48,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:48,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 72 [2021-11-07 07:29:48,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553562199] [2021-11-07 07:29:48,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-11-07 07:29:48,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:48,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-11-07 07:29:48,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1333, Invalid=3923, Unknown=0, NotChecked=0, Total=5256 [2021-11-07 07:29:48,071 INFO L87 Difference]: Start difference. First operand 282 states and 282 transitions. Second operand has 73 states, 72 states have (on average 3.4166666666666665) internal successors, (246), 38 states have internal predecessors, (246), 35 states have call successors, (35), 35 states have call predecessors, (35), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:49,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:49,090 INFO L93 Difference]: Finished difference Result 295 states and 295 transitions. [2021-11-07 07:29:49,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-11-07 07:29:49,091 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 3.4166666666666665) internal successors, (246), 38 states have internal predecessors, (246), 35 states have call successors, (35), 35 states have call predecessors, (35), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281 [2021-11-07 07:29:49,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:49,093 INFO L225 Difference]: With dead ends: 295 [2021-11-07 07:29:49,094 INFO L226 Difference]: Without dead ends: 294 [2021-11-07 07:29:49,094 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 387 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1751 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=3258, Invalid=8298, Unknown=0, NotChecked=0, Total=11556 [2021-11-07 07:29:49,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-07 07:29:49,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 290. [2021-11-07 07:29:49,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 253 states have (on average 1.0039525691699605) internal successors, (254), 253 states have internal predecessors, (254), 36 states have call successors, (36), 36 states have call predecessors, (36), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:49,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 290 transitions. [2021-11-07 07:29:49,118 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 290 transitions. Word has length 281 [2021-11-07 07:29:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:49,119 INFO L470 AbstractCegarLoop]: Abstraction has 290 states and 290 transitions. [2021-11-07 07:29:49,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 3.4166666666666665) internal successors, (246), 38 states have internal predecessors, (246), 35 states have call successors, (35), 35 states have call predecessors, (35), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:49,119 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 290 transitions. [2021-11-07 07:29:49,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-07 07:29:49,121 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:49,121 INFO L513 BasicCegarLoop]: trace histogram [36, 36, 36, 35, 35, 35, 35, 35, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:49,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-11-07 07:29:49,346 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:49,347 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:49,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:49,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1969347539, now seen corresponding path program 35 times [2021-11-07 07:29:49,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:49,347 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565637829] [2021-11-07 07:29:49,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:49,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:50,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:50,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565637829] [2021-11-07 07:29:50,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565637829] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:50,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719990290] [2021-11-07 07:29:50,955 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:29:50,956 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:50,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:50,956 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:50,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-11-07 07:29:52,625 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-11-07 07:29:52,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:52,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 74 conjunts are in the unsatisfiable core [2021-11-07 07:29:52,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 4900 backedges. 0 proven. 4900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:53,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719990290] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:53,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:53,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 74 [2021-11-07 07:29:53,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964352868] [2021-11-07 07:29:53,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-11-07 07:29:53,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:53,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-11-07 07:29:53,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1407, Invalid=4143, Unknown=0, NotChecked=0, Total=5550 [2021-11-07 07:29:53,382 INFO L87 Difference]: Start difference. First operand 290 states and 290 transitions. Second operand has 75 states, 74 states have (on average 3.418918918918919) internal successors, (253), 39 states have internal predecessors, (253), 36 states have call successors, (36), 36 states have call predecessors, (36), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:54,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:29:54,402 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2021-11-07 07:29:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-11-07 07:29:54,403 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 3.418918918918919) internal successors, (253), 39 states have internal predecessors, (253), 36 states have call successors, (36), 36 states have call predecessors, (36), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 289 [2021-11-07 07:29:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:29:54,404 INFO L225 Difference]: With dead ends: 303 [2021-11-07 07:29:54,404 INFO L226 Difference]: Without dead ends: 302 [2021-11-07 07:29:54,406 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1855 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=3441, Invalid=8769, Unknown=0, NotChecked=0, Total=12210 [2021-11-07 07:29:54,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-11-07 07:29:54,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 298. [2021-11-07 07:29:54,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 260 states have (on average 1.0038461538461538) internal successors, (261), 260 states have internal predecessors, (261), 37 states have call successors, (37), 37 states have call predecessors, (37), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:54,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 298 transitions. [2021-11-07 07:29:54,423 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 298 transitions. Word has length 289 [2021-11-07 07:29:54,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:29:54,423 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 298 transitions. [2021-11-07 07:29:54,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 3.418918918918919) internal successors, (253), 39 states have internal predecessors, (253), 36 states have call successors, (36), 36 states have call predecessors, (36), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:29:54,424 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 298 transitions. [2021-11-07 07:29:54,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2021-11-07 07:29:54,426 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:29:54,426 INFO L513 BasicCegarLoop]: trace histogram [37, 37, 37, 36, 36, 36, 36, 36, 1, 1, 1, 1, 1, 1] [2021-11-07 07:29:54,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-11-07 07:29:54,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:54,640 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:29:54,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:29:54,641 INFO L85 PathProgramCache]: Analyzing trace with hash 263087504, now seen corresponding path program 36 times [2021-11-07 07:29:54,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:29:54,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947637162] [2021-11-07 07:29:54,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:29:54,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:29:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:29:56,479 INFO L134 CoverageAnalysis]: Checked inductivity of 5184 backedges. 0 proven. 5184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:56,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:29:56,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947637162] [2021-11-07 07:29:56,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947637162] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:56,479 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499174862] [2021-11-07 07:29:56,479 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:29:56,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:29:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:29:56,480 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:29:56,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-11-07 07:29:58,229 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-11-07 07:29:58,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:29:58,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 76 conjunts are in the unsatisfiable core [2021-11-07 07:29:58,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:29:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5184 backedges. 0 proven. 5184 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:29:59,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499174862] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:29:59,001 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:29:59,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 76 [2021-11-07 07:29:59,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570468449] [2021-11-07 07:29:59,002 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2021-11-07 07:29:59,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:29:59,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-11-07 07:29:59,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1483, Invalid=4369, Unknown=0, NotChecked=0, Total=5852 [2021-11-07 07:29:59,003 INFO L87 Difference]: Start difference. First operand 298 states and 298 transitions. Second operand has 77 states, 76 states have (on average 3.4210526315789473) internal successors, (260), 40 states have internal predecessors, (260), 37 states have call successors, (37), 37 states have call predecessors, (37), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:00,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:00,134 INFO L93 Difference]: Finished difference Result 311 states and 311 transitions. [2021-11-07 07:30:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-07 07:30:00,135 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 3.4210526315789473) internal successors, (260), 40 states have internal predecessors, (260), 37 states have call successors, (37), 37 states have call predecessors, (37), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 297 [2021-11-07 07:30:00,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:00,137 INFO L225 Difference]: With dead ends: 311 [2021-11-07 07:30:00,137 INFO L226 Difference]: Without dead ends: 310 [2021-11-07 07:30:00,138 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1962 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3629, Invalid=9253, Unknown=0, NotChecked=0, Total=12882 [2021-11-07 07:30:00,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-11-07 07:30:00,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 306. [2021-11-07 07:30:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 267 states have (on average 1.00374531835206) internal successors, (268), 267 states have internal predecessors, (268), 38 states have call successors, (38), 38 states have call predecessors, (38), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:00,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 306 transitions. [2021-11-07 07:30:00,164 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 306 transitions. Word has length 297 [2021-11-07 07:30:00,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:00,164 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 306 transitions. [2021-11-07 07:30:00,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 3.4210526315789473) internal successors, (260), 40 states have internal predecessors, (260), 37 states have call successors, (37), 37 states have call predecessors, (37), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:00,165 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 306 transitions. [2021-11-07 07:30:00,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-11-07 07:30:00,167 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:00,167 INFO L513 BasicCegarLoop]: trace histogram [38, 38, 38, 37, 37, 37, 37, 37, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:00,204 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-11-07 07:30:00,386 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-11-07 07:30:00,387 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:00,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:00,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1276648883, now seen corresponding path program 37 times [2021-11-07 07:30:00,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:00,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121834096] [2021-11-07 07:30:00,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:00,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:02,200 INFO L134 CoverageAnalysis]: Checked inductivity of 5476 backedges. 0 proven. 5476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:02,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:02,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121834096] [2021-11-07 07:30:02,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121834096] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:02,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [731895077] [2021-11-07 07:30:02,201 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:30:02,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:02,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:02,202 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:02,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-11-07 07:30:04,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:04,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 78 conjunts are in the unsatisfiable core [2021-11-07 07:30:04,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:04,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5476 backedges. 0 proven. 5476 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:04,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [731895077] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:04,781 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:04,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 78 [2021-11-07 07:30:04,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594486177] [2021-11-07 07:30:04,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-11-07 07:30:04,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:04,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-11-07 07:30:04,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1561, Invalid=4601, Unknown=0, NotChecked=0, Total=6162 [2021-11-07 07:30:04,783 INFO L87 Difference]: Start difference. First operand 306 states and 306 transitions. Second operand has 79 states, 78 states have (on average 3.423076923076923) internal successors, (267), 41 states have internal predecessors, (267), 38 states have call successors, (38), 38 states have call predecessors, (38), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:05,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:05,915 INFO L93 Difference]: Finished difference Result 319 states and 319 transitions. [2021-11-07 07:30:05,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-11-07 07:30:05,915 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 3.423076923076923) internal successors, (267), 41 states have internal predecessors, (267), 38 states have call successors, (38), 38 states have call predecessors, (38), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-11-07 07:30:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:05,917 INFO L225 Difference]: With dead ends: 319 [2021-11-07 07:30:05,917 INFO L226 Difference]: Without dead ends: 318 [2021-11-07 07:30:05,917 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2072 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=3822, Invalid=9750, Unknown=0, NotChecked=0, Total=13572 [2021-11-07 07:30:05,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2021-11-07 07:30:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 314. [2021-11-07 07:30:05,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 274 states have (on average 1.0036496350364963) internal successors, (275), 274 states have internal predecessors, (275), 39 states have call successors, (39), 39 states have call predecessors, (39), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:05,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 314 transitions. [2021-11-07 07:30:05,941 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 314 transitions. Word has length 305 [2021-11-07 07:30:05,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:05,941 INFO L470 AbstractCegarLoop]: Abstraction has 314 states and 314 transitions. [2021-11-07 07:30:05,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 3.423076923076923) internal successors, (267), 41 states have internal predecessors, (267), 38 states have call successors, (38), 38 states have call predecessors, (38), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:05,942 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 314 transitions. [2021-11-07 07:30:05,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-11-07 07:30:05,944 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:05,944 INFO L513 BasicCegarLoop]: trace histogram [39, 39, 39, 38, 38, 38, 38, 38, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:05,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-11-07 07:30:06,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,38 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:06,159 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:06,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:06,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1419030006, now seen corresponding path program 38 times [2021-11-07 07:30:06,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:06,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968534629] [2021-11-07 07:30:06,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:06,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:06,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:08,252 INFO L134 CoverageAnalysis]: Checked inductivity of 5776 backedges. 0 proven. 5776 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:08,252 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:08,252 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968534629] [2021-11-07 07:30:08,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968534629] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:08,253 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636420524] [2021-11-07 07:30:08,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:30:08,253 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:08,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:08,254 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:08,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-11-07 07:30:10,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:30:10,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:30:10,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 80 conjunts are in the unsatisfiable core [2021-11-07 07:30:10,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 5776 backedges. 0 proven. 5776 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:11,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636420524] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:11,006 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:11,006 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 80 [2021-11-07 07:30:11,006 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [499892332] [2021-11-07 07:30:11,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2021-11-07 07:30:11,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:11,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-11-07 07:30:11,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1641, Invalid=4839, Unknown=0, NotChecked=0, Total=6480 [2021-11-07 07:30:11,009 INFO L87 Difference]: Start difference. First operand 314 states and 314 transitions. Second operand has 81 states, 80 states have (on average 3.425) internal successors, (274), 42 states have internal predecessors, (274), 39 states have call successors, (39), 39 states have call predecessors, (39), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:12,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:12,262 INFO L93 Difference]: Finished difference Result 327 states and 327 transitions. [2021-11-07 07:30:12,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-11-07 07:30:12,262 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 80 states have (on average 3.425) internal successors, (274), 42 states have internal predecessors, (274), 39 states have call successors, (39), 39 states have call predecessors, (39), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 313 [2021-11-07 07:30:12,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:12,264 INFO L225 Difference]: With dead ends: 327 [2021-11-07 07:30:12,264 INFO L226 Difference]: Without dead ends: 326 [2021-11-07 07:30:12,265 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2185 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4020, Invalid=10260, Unknown=0, NotChecked=0, Total=14280 [2021-11-07 07:30:12,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-07 07:30:12,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 322. [2021-11-07 07:30:12,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 281 states have (on average 1.00355871886121) internal successors, (282), 281 states have internal predecessors, (282), 40 states have call successors, (40), 40 states have call predecessors, (40), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:12,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 322 transitions. [2021-11-07 07:30:12,294 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 322 transitions. Word has length 313 [2021-11-07 07:30:12,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:12,295 INFO L470 AbstractCegarLoop]: Abstraction has 322 states and 322 transitions. [2021-11-07 07:30:12,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 80 states have (on average 3.425) internal successors, (274), 42 states have internal predecessors, (274), 39 states have call successors, (39), 39 states have call predecessors, (39), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:12,296 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 322 transitions. [2021-11-07 07:30:12,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2021-11-07 07:30:12,316 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:12,317 INFO L513 BasicCegarLoop]: trace histogram [40, 40, 40, 39, 39, 39, 39, 39, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:12,349 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-11-07 07:30:12,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable45 [2021-11-07 07:30:12,527 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:12,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:12,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1835682617, now seen corresponding path program 39 times [2021-11-07 07:30:12,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:12,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552715839] [2021-11-07 07:30:12,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:12,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 0 proven. 6084 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:14,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:14,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552715839] [2021-11-07 07:30:14,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552715839] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:14,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205924624] [2021-11-07 07:30:14,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:30:14,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:14,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:14,511 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:14,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-11-07 07:30:16,650 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-11-07 07:30:16,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:30:16,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 82 conjunts are in the unsatisfiable core [2021-11-07 07:30:16,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 6084 backedges. 0 proven. 6084 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:17,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205924624] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:17,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:17,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 82 [2021-11-07 07:30:17,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301995173] [2021-11-07 07:30:17,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2021-11-07 07:30:17,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:17,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-11-07 07:30:17,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1723, Invalid=5083, Unknown=0, NotChecked=0, Total=6806 [2021-11-07 07:30:17,511 INFO L87 Difference]: Start difference. First operand 322 states and 322 transitions. Second operand has 83 states, 82 states have (on average 3.426829268292683) internal successors, (281), 43 states have internal predecessors, (281), 40 states have call successors, (40), 40 states have call predecessors, (40), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:19,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:19,096 INFO L93 Difference]: Finished difference Result 335 states and 335 transitions. [2021-11-07 07:30:19,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-11-07 07:30:19,097 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 3.426829268292683) internal successors, (281), 43 states have internal predecessors, (281), 40 states have call successors, (40), 40 states have call predecessors, (40), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2021-11-07 07:30:19,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:19,099 INFO L225 Difference]: With dead ends: 335 [2021-11-07 07:30:19,099 INFO L226 Difference]: Without dead ends: 334 [2021-11-07 07:30:19,101 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2301 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4223, Invalid=10783, Unknown=0, NotChecked=0, Total=15006 [2021-11-07 07:30:19,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2021-11-07 07:30:19,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 330. [2021-11-07 07:30:19,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 288 states have (on average 1.0034722222222223) internal successors, (289), 288 states have internal predecessors, (289), 41 states have call successors, (41), 41 states have call predecessors, (41), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:19,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 330 transitions. [2021-11-07 07:30:19,134 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 330 transitions. Word has length 321 [2021-11-07 07:30:19,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:19,134 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 330 transitions. [2021-11-07 07:30:19,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 3.426829268292683) internal successors, (281), 43 states have internal predecessors, (281), 40 states have call successors, (40), 40 states have call predecessors, (40), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 330 transitions. [2021-11-07 07:30:19,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-07 07:30:19,137 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:19,137 INFO L513 BasicCegarLoop]: trace histogram [41, 41, 41, 40, 40, 40, 40, 40, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:19,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Forceful destruction successful, exit code 0 [2021-11-07 07:30:19,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-11-07 07:30:19,363 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:19,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:19,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1489242756, now seen corresponding path program 40 times [2021-11-07 07:30:19,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:19,363 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297267004] [2021-11-07 07:30:19,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:19,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:21,407 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 6400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:21,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:21,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297267004] [2021-11-07 07:30:21,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297267004] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:21,407 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [155098193] [2021-11-07 07:30:21,407 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:30:21,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:21,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:21,408 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:21,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-11-07 07:30:23,502 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:30:23,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:30:23,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 84 conjunts are in the unsatisfiable core [2021-11-07 07:30:23,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:24,439 INFO L134 CoverageAnalysis]: Checked inductivity of 6400 backedges. 0 proven. 6400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:24,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [155098193] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:24,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:24,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 84 [2021-11-07 07:30:24,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463974488] [2021-11-07 07:30:24,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2021-11-07 07:30:24,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:24,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-11-07 07:30:24,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1807, Invalid=5333, Unknown=0, NotChecked=0, Total=7140 [2021-11-07 07:30:24,442 INFO L87 Difference]: Start difference. First operand 330 states and 330 transitions. Second operand has 85 states, 84 states have (on average 3.4285714285714284) internal successors, (288), 44 states have internal predecessors, (288), 41 states have call successors, (41), 41 states have call predecessors, (41), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:25,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:25,832 INFO L93 Difference]: Finished difference Result 343 states and 343 transitions. [2021-11-07 07:30:25,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-11-07 07:30:25,833 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 3.4285714285714284) internal successors, (288), 44 states have internal predecessors, (288), 41 states have call successors, (41), 41 states have call predecessors, (41), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2021-11-07 07:30:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:25,836 INFO L225 Difference]: With dead ends: 343 [2021-11-07 07:30:25,836 INFO L226 Difference]: Without dead ends: 342 [2021-11-07 07:30:25,838 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2420 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4431, Invalid=11319, Unknown=0, NotChecked=0, Total=15750 [2021-11-07 07:30:25,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-07 07:30:25,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 338. [2021-11-07 07:30:25,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 295 states have (on average 1.0033898305084745) internal successors, (296), 295 states have internal predecessors, (296), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:25,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 338 transitions. [2021-11-07 07:30:25,869 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 338 transitions. Word has length 329 [2021-11-07 07:30:25,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:25,869 INFO L470 AbstractCegarLoop]: Abstraction has 338 states and 338 transitions. [2021-11-07 07:30:25,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 84 states have (on average 3.4285714285714284) internal successors, (288), 44 states have internal predecessors, (288), 41 states have call successors, (41), 41 states have call predecessors, (41), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 338 transitions. [2021-11-07 07:30:25,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2021-11-07 07:30:25,872 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:25,872 INFO L513 BasicCegarLoop]: trace histogram [42, 42, 42, 41, 41, 41, 41, 41, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:25,905 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Ended with exit code 0 [2021-11-07 07:30:26,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-11-07 07:30:26,087 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:26,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:26,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1079202625, now seen corresponding path program 41 times [2021-11-07 07:30:26,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:26,087 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950052410] [2021-11-07 07:30:26,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:26,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 6724 backedges. 0 proven. 6724 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:28,209 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:28,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950052410] [2021-11-07 07:30:28,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950052410] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:28,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796034448] [2021-11-07 07:30:28,209 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:30:28,210 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:28,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:28,210 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:28,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-11-07 07:30:30,490 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-11-07 07:30:30,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:30:30,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 86 conjunts are in the unsatisfiable core [2021-11-07 07:30:30,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:31,340 INFO L134 CoverageAnalysis]: Checked inductivity of 6724 backedges. 0 proven. 6724 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:31,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796034448] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:31,340 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:31,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 86 [2021-11-07 07:30:31,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260676748] [2021-11-07 07:30:31,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2021-11-07 07:30:31,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:31,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-11-07 07:30:31,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1893, Invalid=5589, Unknown=0, NotChecked=0, Total=7482 [2021-11-07 07:30:31,344 INFO L87 Difference]: Start difference. First operand 338 states and 338 transitions. Second operand has 87 states, 86 states have (on average 3.4302325581395348) internal successors, (295), 45 states have internal predecessors, (295), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:32,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:32,748 INFO L93 Difference]: Finished difference Result 351 states and 351 transitions. [2021-11-07 07:30:32,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-11-07 07:30:32,748 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 86 states have (on average 3.4302325581395348) internal successors, (295), 45 states have internal predecessors, (295), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 337 [2021-11-07 07:30:32,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:32,750 INFO L225 Difference]: With dead ends: 351 [2021-11-07 07:30:32,751 INFO L226 Difference]: Without dead ends: 350 [2021-11-07 07:30:32,752 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2542 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=4644, Invalid=11868, Unknown=0, NotChecked=0, Total=16512 [2021-11-07 07:30:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-11-07 07:30:32,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 346. [2021-11-07 07:30:32,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 302 states have (on average 1.0033112582781456) internal successors, (303), 302 states have internal predecessors, (303), 43 states have call successors, (43), 43 states have call predecessors, (43), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:32,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 346 transitions. [2021-11-07 07:30:32,784 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 346 transitions. Word has length 337 [2021-11-07 07:30:32,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:32,784 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 346 transitions. [2021-11-07 07:30:32,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 86 states have (on average 3.4302325581395348) internal successors, (295), 45 states have internal predecessors, (295), 42 states have call successors, (42), 42 states have call predecessors, (42), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:32,785 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 346 transitions. [2021-11-07 07:30:32,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-11-07 07:30:32,787 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:32,788 INFO L513 BasicCegarLoop]: trace histogram [43, 43, 43, 42, 42, 42, 42, 42, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:32,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Ended with exit code 0 [2021-11-07 07:30:33,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-11-07 07:30:33,003 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:33,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:33,003 INFO L85 PathProgramCache]: Analyzing trace with hash -559902978, now seen corresponding path program 42 times [2021-11-07 07:30:33,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:33,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554263990] [2021-11-07 07:30:33,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:33,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:35,162 INFO L134 CoverageAnalysis]: Checked inductivity of 7056 backedges. 0 proven. 7056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:35,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:35,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554263990] [2021-11-07 07:30:35,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554263990] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:35,163 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [329129412] [2021-11-07 07:30:35,163 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:30:35,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:35,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:35,164 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:35,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-11-07 07:30:37,577 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-11-07 07:30:37,578 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:30:37,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 88 conjunts are in the unsatisfiable core [2021-11-07 07:30:37,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:38,537 INFO L134 CoverageAnalysis]: Checked inductivity of 7056 backedges. 0 proven. 7056 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:38,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [329129412] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:38,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:38,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88] total 88 [2021-11-07 07:30:38,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180843962] [2021-11-07 07:30:38,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2021-11-07 07:30:38,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:38,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-11-07 07:30:38,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1981, Invalid=5851, Unknown=0, NotChecked=0, Total=7832 [2021-11-07 07:30:38,543 INFO L87 Difference]: Start difference. First operand 346 states and 346 transitions. Second operand has 89 states, 88 states have (on average 3.4318181818181817) internal successors, (302), 46 states have internal predecessors, (302), 43 states have call successors, (43), 43 states have call predecessors, (43), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:40,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:40,093 INFO L93 Difference]: Finished difference Result 359 states and 359 transitions. [2021-11-07 07:30:40,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-11-07 07:30:40,093 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 88 states have (on average 3.4318181818181817) internal successors, (302), 46 states have internal predecessors, (302), 43 states have call successors, (43), 43 states have call predecessors, (43), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2021-11-07 07:30:40,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:40,095 INFO L225 Difference]: With dead ends: 359 [2021-11-07 07:30:40,095 INFO L226 Difference]: Without dead ends: 358 [2021-11-07 07:30:40,096 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2667 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=4862, Invalid=12430, Unknown=0, NotChecked=0, Total=17292 [2021-11-07 07:30:40,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-11-07 07:30:40,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 354. [2021-11-07 07:30:40,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 309 states have (on average 1.0032362459546926) internal successors, (310), 309 states have internal predecessors, (310), 44 states have call successors, (44), 44 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 354 transitions. [2021-11-07 07:30:40,125 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 354 transitions. Word has length 345 [2021-11-07 07:30:40,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:40,125 INFO L470 AbstractCegarLoop]: Abstraction has 354 states and 354 transitions. [2021-11-07 07:30:40,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 88 states have (on average 3.4318181818181817) internal successors, (302), 46 states have internal predecessors, (302), 43 states have call successors, (43), 43 states have call predecessors, (43), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:40,126 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 354 transitions. [2021-11-07 07:30:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2021-11-07 07:30:40,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:40,130 INFO L513 BasicCegarLoop]: trace histogram [44, 44, 44, 43, 43, 43, 43, 43, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:40,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-11-07 07:30:40,350 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 43 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2021-11-07 07:30:40,351 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:40,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:40,351 INFO L85 PathProgramCache]: Analyzing trace with hash 470334907, now seen corresponding path program 43 times [2021-11-07 07:30:40,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:40,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818023560] [2021-11-07 07:30:40,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:40,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:40,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:42,812 INFO L134 CoverageAnalysis]: Checked inductivity of 7396 backedges. 0 proven. 7396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:42,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:42,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818023560] [2021-11-07 07:30:42,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818023560] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:42,813 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996289506] [2021-11-07 07:30:42,813 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:30:42,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:42,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:42,814 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:42,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-11-07 07:30:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:45,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 90 conjunts are in the unsatisfiable core [2021-11-07 07:30:45,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:46,153 INFO L134 CoverageAnalysis]: Checked inductivity of 7396 backedges. 0 proven. 7396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:46,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996289506] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:46,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:46,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90] total 90 [2021-11-07 07:30:46,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582138115] [2021-11-07 07:30:46,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2021-11-07 07:30:46,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:46,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-11-07 07:30:46,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2071, Invalid=6119, Unknown=0, NotChecked=0, Total=8190 [2021-11-07 07:30:46,155 INFO L87 Difference]: Start difference. First operand 354 states and 354 transitions. Second operand has 91 states, 90 states have (on average 3.433333333333333) internal successors, (309), 47 states have internal predecessors, (309), 44 states have call successors, (44), 44 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:47,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:47,780 INFO L93 Difference]: Finished difference Result 367 states and 367 transitions. [2021-11-07 07:30:47,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-11-07 07:30:47,780 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 90 states have (on average 3.433333333333333) internal successors, (309), 47 states have internal predecessors, (309), 44 states have call successors, (44), 44 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 353 [2021-11-07 07:30:47,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:47,783 INFO L225 Difference]: With dead ends: 367 [2021-11-07 07:30:47,783 INFO L226 Difference]: Without dead ends: 366 [2021-11-07 07:30:47,784 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2795 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=5085, Invalid=13005, Unknown=0, NotChecked=0, Total=18090 [2021-11-07 07:30:47,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-07 07:30:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 362. [2021-11-07 07:30:47,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 316 states have (on average 1.0031645569620253) internal successors, (317), 316 states have internal predecessors, (317), 45 states have call successors, (45), 45 states have call predecessors, (45), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:47,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 362 transitions. [2021-11-07 07:30:47,817 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 362 transitions. Word has length 353 [2021-11-07 07:30:47,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:47,818 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 362 transitions. [2021-11-07 07:30:47,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 90 states have (on average 3.433333333333333) internal successors, (309), 47 states have internal predecessors, (309), 44 states have call successors, (44), 44 states have call predecessors, (44), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:47,818 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 362 transitions. [2021-11-07 07:30:47,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-11-07 07:30:47,821 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:47,821 INFO L513 BasicCegarLoop]: trace histogram [45, 45, 45, 44, 44, 44, 44, 44, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:47,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Forceful destruction successful, exit code 0 [2021-11-07 07:30:48,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,44 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:48,037 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:48,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:48,037 INFO L85 PathProgramCache]: Analyzing trace with hash 870899576, now seen corresponding path program 44 times [2021-11-07 07:30:48,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:48,038 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525223543] [2021-11-07 07:30:48,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:48,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 7744 backedges. 0 proven. 7744 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:50,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:50,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525223543] [2021-11-07 07:30:50,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525223543] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:50,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163134681] [2021-11-07 07:30:50,347 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:30:50,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:50,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:50,353 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:50,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-11-07 07:30:52,900 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:30:52,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:30:52,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 760 conjuncts, 92 conjunts are in the unsatisfiable core [2021-11-07 07:30:52,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:30:53,805 INFO L134 CoverageAnalysis]: Checked inductivity of 7744 backedges. 0 proven. 7744 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:53,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163134681] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:53,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:30:53,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92] total 92 [2021-11-07 07:30:53,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026799873] [2021-11-07 07:30:53,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2021-11-07 07:30:53,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:30:53,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-11-07 07:30:53,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2163, Invalid=6393, Unknown=0, NotChecked=0, Total=8556 [2021-11-07 07:30:53,808 INFO L87 Difference]: Start difference. First operand 362 states and 362 transitions. Second operand has 93 states, 92 states have (on average 3.4347826086956523) internal successors, (316), 48 states have internal predecessors, (316), 45 states have call successors, (45), 45 states have call predecessors, (45), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:55,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:30:55,418 INFO L93 Difference]: Finished difference Result 375 states and 375 transitions. [2021-11-07 07:30:55,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-11-07 07:30:55,419 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 3.4347826086956523) internal successors, (316), 48 states have internal predecessors, (316), 45 states have call successors, (45), 45 states have call predecessors, (45), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 361 [2021-11-07 07:30:55,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:30:55,421 INFO L225 Difference]: With dead ends: 375 [2021-11-07 07:30:55,421 INFO L226 Difference]: Without dead ends: 374 [2021-11-07 07:30:55,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 497 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2926 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=5313, Invalid=13593, Unknown=0, NotChecked=0, Total=18906 [2021-11-07 07:30:55,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-11-07 07:30:55,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 370. [2021-11-07 07:30:55,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 323 states have (on average 1.0030959752321982) internal successors, (324), 323 states have internal predecessors, (324), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:55,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 370 transitions. [2021-11-07 07:30:55,446 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 370 transitions. Word has length 361 [2021-11-07 07:30:55,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:30:55,447 INFO L470 AbstractCegarLoop]: Abstraction has 370 states and 370 transitions. [2021-11-07 07:30:55,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 92 states have (on average 3.4347826086956523) internal successors, (316), 48 states have internal predecessors, (316), 45 states have call successors, (45), 45 states have call predecessors, (45), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:30:55,447 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 370 transitions. [2021-11-07 07:30:55,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2021-11-07 07:30:55,450 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:30:55,450 INFO L513 BasicCegarLoop]: trace histogram [46, 46, 46, 45, 45, 45, 45, 45, 1, 1, 1, 1, 1, 1] [2021-11-07 07:30:55,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-11-07 07:30:55,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,45 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:55,667 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:30:55,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:30:55,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1264716747, now seen corresponding path program 45 times [2021-11-07 07:30:55,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:30:55,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543827339] [2021-11-07 07:30:55,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:30:55,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:30:55,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:30:58,270 INFO L134 CoverageAnalysis]: Checked inductivity of 8100 backedges. 0 proven. 8100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:30:58,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:30:58,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543827339] [2021-11-07 07:30:58,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543827339] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:30:58,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872031814] [2021-11-07 07:30:58,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:30:58,271 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:30:58,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:30:58,274 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:30:58,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-11-07 07:31:00,972 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-11-07 07:31:00,972 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:31:00,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 94 conjunts are in the unsatisfiable core [2021-11-07 07:31:00,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:31:01,874 INFO L134 CoverageAnalysis]: Checked inductivity of 8100 backedges. 0 proven. 8100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:01,874 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872031814] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:01,874 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:31:01,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 94 [2021-11-07 07:31:01,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994787585] [2021-11-07 07:31:01,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2021-11-07 07:31:01,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:31:01,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-11-07 07:31:01,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2257, Invalid=6673, Unknown=0, NotChecked=0, Total=8930 [2021-11-07 07:31:01,876 INFO L87 Difference]: Start difference. First operand 370 states and 370 transitions. Second operand has 95 states, 94 states have (on average 3.4361702127659575) internal successors, (323), 49 states have internal predecessors, (323), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:03,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:31:03,504 INFO L93 Difference]: Finished difference Result 383 states and 383 transitions. [2021-11-07 07:31:03,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-11-07 07:31:03,505 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 3.4361702127659575) internal successors, (323), 49 states have internal predecessors, (323), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 369 [2021-11-07 07:31:03,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:31:03,506 INFO L225 Difference]: With dead ends: 383 [2021-11-07 07:31:03,507 INFO L226 Difference]: Without dead ends: 382 [2021-11-07 07:31:03,508 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3060 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5546, Invalid=14194, Unknown=0, NotChecked=0, Total=19740 [2021-11-07 07:31:03,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-11-07 07:31:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 378. [2021-11-07 07:31:03,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 330 states have (on average 1.003030303030303) internal successors, (331), 330 states have internal predecessors, (331), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:03,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 378 transitions. [2021-11-07 07:31:03,538 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 378 transitions. Word has length 369 [2021-11-07 07:31:03,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:31:03,538 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 378 transitions. [2021-11-07 07:31:03,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 3.4361702127659575) internal successors, (323), 49 states have internal predecessors, (323), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:03,538 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 378 transitions. [2021-11-07 07:31:03,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-07 07:31:03,540 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:31:03,540 INFO L513 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2021-11-07 07:31:03,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-11-07 07:31:03,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-11-07 07:31:03,741 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:31:03,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:03,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2139421682, now seen corresponding path program 46 times [2021-11-07 07:31:03,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:03,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38217866] [2021-11-07 07:31:03,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:03,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:03,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:06,258 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:06,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:31:06,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38217866] [2021-11-07 07:31:06,258 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38217866] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:06,258 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114224709] [2021-11-07 07:31:06,258 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:31:06,258 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:31:06,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:31:06,259 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:31:06,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-11-07 07:31:09,009 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:31:09,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:31:09,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 792 conjuncts, 96 conjunts are in the unsatisfiable core [2021-11-07 07:31:09,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:31:09,956 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:09,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114224709] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:09,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:31:09,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 96 [2021-11-07 07:31:09,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153628326] [2021-11-07 07:31:09,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2021-11-07 07:31:09,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:31:09,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-11-07 07:31:09,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2353, Invalid=6959, Unknown=0, NotChecked=0, Total=9312 [2021-11-07 07:31:09,959 INFO L87 Difference]: Start difference. First operand 378 states and 378 transitions. Second operand has 97 states, 96 states have (on average 3.4375) internal successors, (330), 50 states have internal predecessors, (330), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:11,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:31:11,686 INFO L93 Difference]: Finished difference Result 391 states and 391 transitions. [2021-11-07 07:31:11,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-11-07 07:31:11,686 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 3.4375) internal successors, (330), 50 states have internal predecessors, (330), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2021-11-07 07:31:11,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:31:11,689 INFO L225 Difference]: With dead ends: 391 [2021-11-07 07:31:11,689 INFO L226 Difference]: Without dead ends: 390 [2021-11-07 07:31:11,691 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3197 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=5784, Invalid=14808, Unknown=0, NotChecked=0, Total=20592 [2021-11-07 07:31:11,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-07 07:31:11,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 386. [2021-11-07 07:31:11,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 337 states have (on average 1.002967359050445) internal successors, (338), 337 states have internal predecessors, (338), 48 states have call successors, (48), 48 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:11,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 386 transitions. [2021-11-07 07:31:11,729 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 386 transitions. Word has length 377 [2021-11-07 07:31:11,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:31:11,729 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 386 transitions. [2021-11-07 07:31:11,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 3.4375) internal successors, (330), 50 states have internal predecessors, (330), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:11,730 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 386 transitions. [2021-11-07 07:31:11,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-11-07 07:31:11,732 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:31:11,732 INFO L513 BasicCegarLoop]: trace histogram [48, 48, 48, 47, 47, 47, 47, 47, 1, 1, 1, 1, 1, 1] [2021-11-07 07:31:11,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Forceful destruction successful, exit code 0 [2021-11-07 07:31:11,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-11-07 07:31:11,947 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:31:11,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:11,947 INFO L85 PathProgramCache]: Analyzing trace with hash -923076945, now seen corresponding path program 47 times [2021-11-07 07:31:11,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:11,947 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761655090] [2021-11-07 07:31:11,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:11,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:12,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:14,893 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:14,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:31:14,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761655090] [2021-11-07 07:31:14,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761655090] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:14,894 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741464903] [2021-11-07 07:31:14,894 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:31:14,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:31:14,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:31:14,895 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:31:14,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-11-07 07:31:17,853 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-11-07 07:31:17,853 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:31:17,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 98 conjunts are in the unsatisfiable core [2021-11-07 07:31:17,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:31:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 8836 backedges. 0 proven. 8836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:18,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741464903] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:18,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:31:18,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 98 [2021-11-07 07:31:18,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908073190] [2021-11-07 07:31:18,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2021-11-07 07:31:18,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:31:18,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-11-07 07:31:18,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2451, Invalid=7251, Unknown=0, NotChecked=0, Total=9702 [2021-11-07 07:31:18,833 INFO L87 Difference]: Start difference. First operand 386 states and 386 transitions. Second operand has 99 states, 98 states have (on average 3.438775510204082) internal successors, (337), 51 states have internal predecessors, (337), 48 states have call successors, (48), 48 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:20,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:31:20,622 INFO L93 Difference]: Finished difference Result 399 states and 399 transitions. [2021-11-07 07:31:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-11-07 07:31:20,623 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 98 states have (on average 3.438775510204082) internal successors, (337), 51 states have internal predecessors, (337), 48 states have call successors, (48), 48 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2021-11-07 07:31:20,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:31:20,625 INFO L225 Difference]: With dead ends: 399 [2021-11-07 07:31:20,625 INFO L226 Difference]: Without dead ends: 398 [2021-11-07 07:31:20,626 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3337 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=6027, Invalid=15435, Unknown=0, NotChecked=0, Total=21462 [2021-11-07 07:31:20,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-11-07 07:31:20,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 394. [2021-11-07 07:31:20,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 394 states, 344 states have (on average 1.002906976744186) internal successors, (345), 344 states have internal predecessors, (345), 49 states have call successors, (49), 49 states have call predecessors, (49), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 394 transitions. [2021-11-07 07:31:20,655 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 394 transitions. Word has length 385 [2021-11-07 07:31:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:31:20,655 INFO L470 AbstractCegarLoop]: Abstraction has 394 states and 394 transitions. [2021-11-07 07:31:20,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 98 states have (on average 3.438775510204082) internal successors, (337), 51 states have internal predecessors, (337), 48 states have call successors, (48), 48 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:20,656 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 394 transitions. [2021-11-07 07:31:20,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2021-11-07 07:31:20,658 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:31:20,659 INFO L513 BasicCegarLoop]: trace histogram [49, 49, 49, 48, 48, 48, 48, 48, 1, 1, 1, 1, 1, 1] [2021-11-07 07:31:20,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Ended with exit code 0 [2021-11-07 07:31:20,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,48 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:31:20,883 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:31:20,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:20,883 INFO L85 PathProgramCache]: Analyzing trace with hash 408740972, now seen corresponding path program 48 times [2021-11-07 07:31:20,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:20,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102023451] [2021-11-07 07:31:20,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:20,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 9216 backedges. 0 proven. 9216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:23,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:31:23,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102023451] [2021-11-07 07:31:23,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102023451] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:23,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637205844] [2021-11-07 07:31:23,589 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:31:23,590 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:31:23,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:31:23,590 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:31:23,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-11-07 07:31:26,694 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-11-07 07:31:26,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:31:26,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 100 conjunts are in the unsatisfiable core [2021-11-07 07:31:26,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:31:27,654 INFO L134 CoverageAnalysis]: Checked inductivity of 9216 backedges. 0 proven. 9216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:27,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637205844] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:27,655 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:31:27,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 100 [2021-11-07 07:31:27,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148847000] [2021-11-07 07:31:27,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2021-11-07 07:31:27,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:31:27,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-11-07 07:31:27,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2551, Invalid=7549, Unknown=0, NotChecked=0, Total=10100 [2021-11-07 07:31:27,658 INFO L87 Difference]: Start difference. First operand 394 states and 394 transitions. Second operand has 101 states, 100 states have (on average 3.44) internal successors, (344), 52 states have internal predecessors, (344), 49 states have call successors, (49), 49 states have call predecessors, (49), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:29,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:31:29,590 INFO L93 Difference]: Finished difference Result 407 states and 407 transitions. [2021-11-07 07:31:29,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-11-07 07:31:29,591 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 3.44) internal successors, (344), 52 states have internal predecessors, (344), 49 states have call successors, (49), 49 states have call predecessors, (49), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2021-11-07 07:31:29,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:31:29,593 INFO L225 Difference]: With dead ends: 407 [2021-11-07 07:31:29,593 INFO L226 Difference]: Without dead ends: 406 [2021-11-07 07:31:29,594 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 393 SyntacticMatches, 0 SemanticMatches, 148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3480 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=6275, Invalid=16075, Unknown=0, NotChecked=0, Total=22350 [2021-11-07 07:31:29,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2021-11-07 07:31:29,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 402. [2021-11-07 07:31:29,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 351 states have (on average 1.002849002849003) internal successors, (352), 351 states have internal predecessors, (352), 50 states have call successors, (50), 50 states have call predecessors, (50), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:29,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 402 transitions. [2021-11-07 07:31:29,644 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 402 transitions. Word has length 393 [2021-11-07 07:31:29,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:31:29,645 INFO L470 AbstractCegarLoop]: Abstraction has 402 states and 402 transitions. [2021-11-07 07:31:29,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 3.44) internal successors, (344), 52 states have internal predecessors, (344), 49 states have call successors, (49), 49 states have call predecessors, (49), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:29,645 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 402 transitions. [2021-11-07 07:31:29,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2021-11-07 07:31:29,649 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:31:29,650 INFO L513 BasicCegarLoop]: trace histogram [50, 50, 50, 49, 49, 49, 49, 49, 1, 1, 1, 1, 1, 1] [2021-11-07 07:31:29,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-11-07 07:31:29,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-11-07 07:31:29,863 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:31:29,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:29,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1208468777, now seen corresponding path program 49 times [2021-11-07 07:31:29,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:29,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587858584] [2021-11-07 07:31:29,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:29,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:32,795 INFO L134 CoverageAnalysis]: Checked inductivity of 9604 backedges. 0 proven. 9604 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:32,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:31:32,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587858584] [2021-11-07 07:31:32,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587858584] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:32,795 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305195682] [2021-11-07 07:31:32,795 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:31:32,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:31:32,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:31:32,796 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:31:32,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-11-07 07:31:35,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:35,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-07 07:31:35,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:31:36,946 INFO L134 CoverageAnalysis]: Checked inductivity of 9604 backedges. 0 proven. 9604 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:36,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305195682] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:36,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:31:36,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 102 [2021-11-07 07:31:36,947 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474783925] [2021-11-07 07:31:36,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2021-11-07 07:31:36,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:31:36,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-11-07 07:31:36,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2653, Invalid=7853, Unknown=0, NotChecked=0, Total=10506 [2021-11-07 07:31:36,949 INFO L87 Difference]: Start difference. First operand 402 states and 402 transitions. Second operand has 103 states, 102 states have (on average 3.4411764705882355) internal successors, (351), 53 states have internal predecessors, (351), 50 states have call successors, (50), 50 states have call predecessors, (50), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:38,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:31:38,895 INFO L93 Difference]: Finished difference Result 415 states and 415 transitions. [2021-11-07 07:31:38,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-11-07 07:31:38,896 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 102 states have (on average 3.4411764705882355) internal successors, (351), 53 states have internal predecessors, (351), 50 states have call successors, (50), 50 states have call predecessors, (50), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 401 [2021-11-07 07:31:38,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:31:38,897 INFO L225 Difference]: With dead ends: 415 [2021-11-07 07:31:38,897 INFO L226 Difference]: Without dead ends: 414 [2021-11-07 07:31:38,899 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3626 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=6528, Invalid=16728, Unknown=0, NotChecked=0, Total=23256 [2021-11-07 07:31:38,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-11-07 07:31:38,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 410. [2021-11-07 07:31:38,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 358 states have (on average 1.0027932960893855) internal successors, (359), 358 states have internal predecessors, (359), 51 states have call successors, (51), 51 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 410 transitions. [2021-11-07 07:31:38,929 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 410 transitions. Word has length 401 [2021-11-07 07:31:38,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:31:38,929 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 410 transitions. [2021-11-07 07:31:38,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 102 states have (on average 3.4411764705882355) internal successors, (351), 53 states have internal predecessors, (351), 50 states have call successors, (50), 50 states have call predecessors, (50), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:38,930 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 410 transitions. [2021-11-07 07:31:38,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2021-11-07 07:31:38,932 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:31:38,933 INFO L513 BasicCegarLoop]: trace histogram [51, 51, 51, 50, 50, 50, 50, 50, 1, 1, 1, 1, 1, 1] [2021-11-07 07:31:38,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-11-07 07:31:39,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-11-07 07:31:39,159 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:31:39,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:39,159 INFO L85 PathProgramCache]: Analyzing trace with hash -2057791258, now seen corresponding path program 50 times [2021-11-07 07:31:39,159 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:39,159 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974275853] [2021-11-07 07:31:39,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:39,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:42,216 INFO L134 CoverageAnalysis]: Checked inductivity of 10000 backedges. 0 proven. 10000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:42,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:31:42,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974275853] [2021-11-07 07:31:42,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974275853] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:42,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805151506] [2021-11-07 07:31:42,217 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:31:42,217 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:31:42,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:31:42,220 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:31:42,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-11-07 07:31:45,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:31:45,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:31:45,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 856 conjuncts, 104 conjunts are in the unsatisfiable core [2021-11-07 07:31:45,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:31:46,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10000 backedges. 0 proven. 10000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:46,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805151506] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:46,400 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:31:46,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 104] total 104 [2021-11-07 07:31:46,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720173347] [2021-11-07 07:31:46,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2021-11-07 07:31:46,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:31:46,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2021-11-07 07:31:46,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2757, Invalid=8163, Unknown=0, NotChecked=0, Total=10920 [2021-11-07 07:31:46,402 INFO L87 Difference]: Start difference. First operand 410 states and 410 transitions. Second operand has 105 states, 104 states have (on average 3.4423076923076925) internal successors, (358), 54 states have internal predecessors, (358), 51 states have call successors, (51), 51 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:48,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:31:48,407 INFO L93 Difference]: Finished difference Result 423 states and 423 transitions. [2021-11-07 07:31:48,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2021-11-07 07:31:48,407 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 104 states have (on average 3.4423076923076925) internal successors, (358), 54 states have internal predecessors, (358), 51 states have call successors, (51), 51 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 409 [2021-11-07 07:31:48,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:31:48,409 INFO L225 Difference]: With dead ends: 423 [2021-11-07 07:31:48,409 INFO L226 Difference]: Without dead ends: 422 [2021-11-07 07:31:48,410 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3775 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=6786, Invalid=17394, Unknown=0, NotChecked=0, Total=24180 [2021-11-07 07:31:48,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-11-07 07:31:48,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 418. [2021-11-07 07:31:48,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 365 states have (on average 1.0027397260273974) internal successors, (366), 365 states have internal predecessors, (366), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 418 transitions. [2021-11-07 07:31:48,437 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 418 transitions. Word has length 409 [2021-11-07 07:31:48,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:31:48,437 INFO L470 AbstractCegarLoop]: Abstraction has 418 states and 418 transitions. [2021-11-07 07:31:48,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 104 states have (on average 3.4423076923076925) internal successors, (358), 54 states have internal predecessors, (358), 51 states have call successors, (51), 51 states have call predecessors, (51), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 418 transitions. [2021-11-07 07:31:48,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2021-11-07 07:31:48,441 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:31:48,441 INFO L513 BasicCegarLoop]: trace histogram [52, 52, 52, 51, 51, 51, 51, 51, 1, 1, 1, 1, 1, 1] [2021-11-07 07:31:48,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Forceful destruction successful, exit code 0 [2021-11-07 07:31:48,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2021-11-07 07:31:48,667 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:31:48,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:48,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1353473955, now seen corresponding path program 51 times [2021-11-07 07:31:48,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:48,667 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730089017] [2021-11-07 07:31:48,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:48,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:48,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:31:51,669 INFO L134 CoverageAnalysis]: Checked inductivity of 10404 backedges. 0 proven. 10404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:51,669 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:31:51,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730089017] [2021-11-07 07:31:51,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730089017] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:51,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275440668] [2021-11-07 07:31:51,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:31:51,670 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:31:51,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:31:51,679 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:31:51,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-11-07 07:31:55,216 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-11-07 07:31:55,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:31:55,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 106 conjunts are in the unsatisfiable core [2021-11-07 07:31:55,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:31:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 10404 backedges. 0 proven. 10404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:31:56,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275440668] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:31:56,283 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:31:56,284 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [106, 106] total 106 [2021-11-07 07:31:56,284 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172700183] [2021-11-07 07:31:56,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2021-11-07 07:31:56,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:31:56,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2021-11-07 07:31:56,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2863, Invalid=8479, Unknown=0, NotChecked=0, Total=11342 [2021-11-07 07:31:56,288 INFO L87 Difference]: Start difference. First operand 418 states and 418 transitions. Second operand has 107 states, 106 states have (on average 3.443396226415094) internal successors, (365), 55 states have internal predecessors, (365), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:58,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:31:58,458 INFO L93 Difference]: Finished difference Result 431 states and 431 transitions. [2021-11-07 07:31:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-11-07 07:31:58,458 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 106 states have (on average 3.443396226415094) internal successors, (365), 55 states have internal predecessors, (365), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 417 [2021-11-07 07:31:58,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:31:58,460 INFO L225 Difference]: With dead ends: 431 [2021-11-07 07:31:58,461 INFO L226 Difference]: Without dead ends: 430 [2021-11-07 07:31:58,462 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 417 SyntacticMatches, 0 SemanticMatches, 157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3927 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=7049, Invalid=18073, Unknown=0, NotChecked=0, Total=25122 [2021-11-07 07:31:58,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-11-07 07:31:58,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 426. [2021-11-07 07:31:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 372 states have (on average 1.0026881720430108) internal successors, (373), 372 states have internal predecessors, (373), 53 states have call successors, (53), 53 states have call predecessors, (53), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:58,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2021-11-07 07:31:58,491 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 417 [2021-11-07 07:31:58,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:31:58,491 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2021-11-07 07:31:58,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 106 states have (on average 3.443396226415094) internal successors, (365), 55 states have internal predecessors, (365), 52 states have call successors, (52), 52 states have call predecessors, (52), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:31:58,491 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2021-11-07 07:31:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-11-07 07:31:58,494 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:31:58,494 INFO L513 BasicCegarLoop]: trace histogram [53, 53, 53, 52, 52, 52, 52, 52, 1, 1, 1, 1, 1, 1] [2021-11-07 07:31:58,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Ended with exit code 0 [2021-11-07 07:31:58,706 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-11-07 07:31:58,707 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:31:58,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:31:58,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2103449952, now seen corresponding path program 52 times [2021-11-07 07:31:58,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:31:58,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837749219] [2021-11-07 07:31:58,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:31:58,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:31:58,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:01,852 INFO L134 CoverageAnalysis]: Checked inductivity of 10816 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:01,853 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:01,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837749219] [2021-11-07 07:32:01,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837749219] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:01,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188516665] [2021-11-07 07:32:01,853 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:32:01,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:01,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:32:01,854 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:32:01,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-11-07 07:32:05,316 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:32:05,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:32:05,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 108 conjunts are in the unsatisfiable core [2021-11-07 07:32:05,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:32:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 10816 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:06,402 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188516665] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:06,402 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:32:06,402 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 108] total 108 [2021-11-07 07:32:06,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868744294] [2021-11-07 07:32:06,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2021-11-07 07:32:06,403 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:06,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2021-11-07 07:32:06,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2971, Invalid=8801, Unknown=0, NotChecked=0, Total=11772 [2021-11-07 07:32:06,404 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand has 109 states, 108 states have (on average 3.4444444444444446) internal successors, (372), 56 states have internal predecessors, (372), 53 states have call successors, (53), 53 states have call predecessors, (53), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:08,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:08,588 INFO L93 Difference]: Finished difference Result 439 states and 439 transitions. [2021-11-07 07:32:08,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2021-11-07 07:32:08,588 INFO L78 Accepts]: Start accepts. Automaton has has 109 states, 108 states have (on average 3.4444444444444446) internal successors, (372), 56 states have internal predecessors, (372), 53 states have call successors, (53), 53 states have call predecessors, (53), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 425 [2021-11-07 07:32:08,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:08,590 INFO L225 Difference]: With dead ends: 439 [2021-11-07 07:32:08,590 INFO L226 Difference]: Without dead ends: 438 [2021-11-07 07:32:08,592 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 585 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4082 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=7317, Invalid=18765, Unknown=0, NotChecked=0, Total=26082 [2021-11-07 07:32:08,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2021-11-07 07:32:08,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 434. [2021-11-07 07:32:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 379 states have (on average 1.0026385224274406) internal successors, (380), 379 states have internal predecessors, (380), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:08,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 434 transitions. [2021-11-07 07:32:08,620 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 434 transitions. Word has length 425 [2021-11-07 07:32:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:08,620 INFO L470 AbstractCegarLoop]: Abstraction has 434 states and 434 transitions. [2021-11-07 07:32:08,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 108 states have (on average 3.4444444444444446) internal successors, (372), 56 states have internal predecessors, (372), 53 states have call successors, (53), 53 states have call predecessors, (53), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:08,621 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 434 transitions. [2021-11-07 07:32:08,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2021-11-07 07:32:08,623 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:08,623 INFO L513 BasicCegarLoop]: trace histogram [54, 54, 54, 53, 53, 53, 53, 53, 1, 1, 1, 1, 1, 1] [2021-11-07 07:32:08,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Ended with exit code 0 [2021-11-07 07:32:08,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59,53 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:08,824 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:32:08,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:08,824 INFO L85 PathProgramCache]: Analyzing trace with hash 835765789, now seen corresponding path program 53 times [2021-11-07 07:32:08,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:08,824 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402217398] [2021-11-07 07:32:08,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:08,824 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:08,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:12,246 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 0 proven. 11236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:12,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:12,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402217398] [2021-11-07 07:32:12,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402217398] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:12,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336178132] [2021-11-07 07:32:12,247 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:32:12,247 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:12,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:32:12,248 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:32:12,249 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-11-07 07:32:16,132 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-11-07 07:32:16,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:32:16,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 110 conjunts are in the unsatisfiable core [2021-11-07 07:32:16,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:32:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 11236 backedges. 0 proven. 11236 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:17,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336178132] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:17,269 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:32:17,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [110, 110] total 110 [2021-11-07 07:32:17,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225061785] [2021-11-07 07:32:17,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2021-11-07 07:32:17,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:17,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2021-11-07 07:32:17,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=9129, Unknown=0, NotChecked=0, Total=12210 [2021-11-07 07:32:17,272 INFO L87 Difference]: Start difference. First operand 434 states and 434 transitions. Second operand has 111 states, 110 states have (on average 3.4454545454545453) internal successors, (379), 57 states have internal predecessors, (379), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:19,646 INFO L93 Difference]: Finished difference Result 447 states and 447 transitions. [2021-11-07 07:32:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-11-07 07:32:19,647 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 110 states have (on average 3.4454545454545453) internal successors, (379), 57 states have internal predecessors, (379), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 433 [2021-11-07 07:32:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:19,650 INFO L225 Difference]: With dead ends: 447 [2021-11-07 07:32:19,650 INFO L226 Difference]: Without dead ends: 446 [2021-11-07 07:32:19,651 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 433 SyntacticMatches, 0 SemanticMatches, 163 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4240 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=7590, Invalid=19470, Unknown=0, NotChecked=0, Total=27060 [2021-11-07 07:32:19,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2021-11-07 07:32:19,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 442. [2021-11-07 07:32:19,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 386 states have (on average 1.0025906735751295) internal successors, (387), 386 states have internal predecessors, (387), 55 states have call successors, (55), 55 states have call predecessors, (55), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 442 transitions. [2021-11-07 07:32:19,687 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 442 transitions. Word has length 433 [2021-11-07 07:32:19,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:19,687 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 442 transitions. [2021-11-07 07:32:19,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 110 states have (on average 3.4454545454545453) internal successors, (379), 57 states have internal predecessors, (379), 54 states have call successors, (54), 54 states have call predecessors, (54), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:19,687 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 442 transitions. [2021-11-07 07:32:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2021-11-07 07:32:19,689 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:19,690 INFO L513 BasicCegarLoop]: trace histogram [55, 55, 55, 54, 54, 54, 54, 54, 1, 1, 1, 1, 1, 1] [2021-11-07 07:32:19,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-11-07 07:32:19,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,54 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:19,890 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:32:19,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:19,891 INFO L85 PathProgramCache]: Analyzing trace with hash -413440550, now seen corresponding path program 54 times [2021-11-07 07:32:19,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:19,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55680950] [2021-11-07 07:32:19,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:19,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:20,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:23,498 INFO L134 CoverageAnalysis]: Checked inductivity of 11664 backedges. 0 proven. 11664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:23,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:23,498 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55680950] [2021-11-07 07:32:23,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55680950] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:23,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1222240402] [2021-11-07 07:32:23,499 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:32:23,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:23,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:32:23,500 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:32:23,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-11-07 07:32:27,602 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-11-07 07:32:27,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:32:27,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 112 conjunts are in the unsatisfiable core [2021-11-07 07:32:27,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:32:28,970 INFO L134 CoverageAnalysis]: Checked inductivity of 11664 backedges. 0 proven. 11664 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:28,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1222240402] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:28,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:32:28,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 112] total 112 [2021-11-07 07:32:28,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340826930] [2021-11-07 07:32:28,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2021-11-07 07:32:28,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:28,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2021-11-07 07:32:28,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3193, Invalid=9463, Unknown=0, NotChecked=0, Total=12656 [2021-11-07 07:32:28,974 INFO L87 Difference]: Start difference. First operand 442 states and 442 transitions. Second operand has 113 states, 112 states have (on average 3.4464285714285716) internal successors, (386), 58 states have internal predecessors, (386), 55 states have call successors, (55), 55 states have call predecessors, (55), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:31,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:31,489 INFO L93 Difference]: Finished difference Result 455 states and 455 transitions. [2021-11-07 07:32:31,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2021-11-07 07:32:31,489 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 3.4464285714285716) internal successors, (386), 58 states have internal predecessors, (386), 55 states have call successors, (55), 55 states have call predecessors, (55), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 441 [2021-11-07 07:32:31,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:31,491 INFO L225 Difference]: With dead ends: 455 [2021-11-07 07:32:31,492 INFO L226 Difference]: Without dead ends: 454 [2021-11-07 07:32:31,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 607 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4401 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=7868, Invalid=20188, Unknown=0, NotChecked=0, Total=28056 [2021-11-07 07:32:31,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2021-11-07 07:32:31,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 450. [2021-11-07 07:32:31,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 393 states have (on average 1.0025445292620865) internal successors, (394), 393 states have internal predecessors, (394), 56 states have call successors, (56), 56 states have call predecessors, (56), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 450 transitions. [2021-11-07 07:32:31,528 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 450 transitions. Word has length 441 [2021-11-07 07:32:31,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:31,529 INFO L470 AbstractCegarLoop]: Abstraction has 450 states and 450 transitions. [2021-11-07 07:32:31,529 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 3.4464285714285716) internal successors, (386), 58 states have internal predecessors, (386), 55 states have call successors, (55), 55 states have call predecessors, (55), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:31,529 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 450 transitions. [2021-11-07 07:32:31,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2021-11-07 07:32:31,532 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:31,532 INFO L513 BasicCegarLoop]: trace histogram [56, 56, 56, 55, 55, 55, 55, 55, 1, 1, 1, 1, 1, 1] [2021-11-07 07:32:31,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-11-07 07:32:31,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61,55 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:31,733 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:32:31,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:31,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1784477847, now seen corresponding path program 55 times [2021-11-07 07:32:31,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:31,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104540793] [2021-11-07 07:32:31,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:31,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:31,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:35,378 INFO L134 CoverageAnalysis]: Checked inductivity of 12100 backedges. 0 proven. 12100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:35,378 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:35,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104540793] [2021-11-07 07:32:35,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104540793] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:35,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122434744] [2021-11-07 07:32:35,379 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:32:35,379 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:35,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:32:35,380 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:32:35,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-11-07 07:32:39,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:39,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 114 conjunts are in the unsatisfiable core [2021-11-07 07:32:39,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:32:40,613 INFO L134 CoverageAnalysis]: Checked inductivity of 12100 backedges. 0 proven. 12100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:40,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122434744] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:40,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:32:40,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 114] total 114 [2021-11-07 07:32:40,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921547689] [2021-11-07 07:32:40,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2021-11-07 07:32:40,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:40,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2021-11-07 07:32:40,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3307, Invalid=9803, Unknown=0, NotChecked=0, Total=13110 [2021-11-07 07:32:40,617 INFO L87 Difference]: Start difference. First operand 450 states and 450 transitions. Second operand has 115 states, 114 states have (on average 3.4473684210526314) internal successors, (393), 59 states have internal predecessors, (393), 56 states have call successors, (56), 56 states have call predecessors, (56), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:43,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:43,158 INFO L93 Difference]: Finished difference Result 463 states and 463 transitions. [2021-11-07 07:32:43,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2021-11-07 07:32:43,159 INFO L78 Accepts]: Start accepts. Automaton has has 115 states, 114 states have (on average 3.4473684210526314) internal successors, (393), 59 states have internal predecessors, (393), 56 states have call successors, (56), 56 states have call predecessors, (56), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 449 [2021-11-07 07:32:43,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:43,160 INFO L225 Difference]: With dead ends: 463 [2021-11-07 07:32:43,161 INFO L226 Difference]: Without dead ends: 462 [2021-11-07 07:32:43,162 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 618 GetRequests, 449 SyntacticMatches, 0 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4565 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=8151, Invalid=20919, Unknown=0, NotChecked=0, Total=29070 [2021-11-07 07:32:43,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-11-07 07:32:43,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 458. [2021-11-07 07:32:43,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 400 states have (on average 1.0025) internal successors, (401), 400 states have internal predecessors, (401), 57 states have call successors, (57), 57 states have call predecessors, (57), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 458 transitions. [2021-11-07 07:32:43,199 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 458 transitions. Word has length 449 [2021-11-07 07:32:43,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:43,199 INFO L470 AbstractCegarLoop]: Abstraction has 458 states and 458 transitions. [2021-11-07 07:32:43,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 114 states have (on average 3.4473684210526314) internal successors, (393), 59 states have internal predecessors, (393), 56 states have call successors, (56), 56 states have call predecessors, (56), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:43,200 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 458 transitions. [2021-11-07 07:32:43,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2021-11-07 07:32:43,203 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:43,204 INFO L513 BasicCegarLoop]: trace histogram [57, 57, 57, 56, 56, 56, 56, 56, 1, 1, 1, 1, 1, 1] [2021-11-07 07:32:43,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-11-07 07:32:43,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62,56 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:43,405 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:32:43,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash -634225068, now seen corresponding path program 56 times [2021-11-07 07:32:43,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:43,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898650044] [2021-11-07 07:32:43,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:43,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:47,215 INFO L134 CoverageAnalysis]: Checked inductivity of 12544 backedges. 0 proven. 12544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:47,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:47,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898650044] [2021-11-07 07:32:47,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898650044] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:47,215 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782743853] [2021-11-07 07:32:47,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:32:47,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:47,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:32:47,216 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:32:47,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-11-07 07:32:51,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:32:51,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:32:51,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 116 conjunts are in the unsatisfiable core [2021-11-07 07:32:51,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:32:52,762 INFO L134 CoverageAnalysis]: Checked inductivity of 12544 backedges. 0 proven. 12544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:52,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782743853] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:52,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:32:52,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [116, 116] total 116 [2021-11-07 07:32:52,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552078566] [2021-11-07 07:32:52,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 117 states [2021-11-07 07:32:52,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:32:52,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 117 interpolants. [2021-11-07 07:32:52,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3423, Invalid=10149, Unknown=0, NotChecked=0, Total=13572 [2021-11-07 07:32:52,766 INFO L87 Difference]: Start difference. First operand 458 states and 458 transitions. Second operand has 117 states, 116 states have (on average 3.4482758620689653) internal successors, (400), 60 states have internal predecessors, (400), 57 states have call successors, (57), 57 states have call predecessors, (57), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:55,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:32:55,457 INFO L93 Difference]: Finished difference Result 471 states and 471 transitions. [2021-11-07 07:32:55,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-11-07 07:32:55,458 INFO L78 Accepts]: Start accepts. Automaton has has 117 states, 116 states have (on average 3.4482758620689653) internal successors, (400), 60 states have internal predecessors, (400), 57 states have call successors, (57), 57 states have call predecessors, (57), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 457 [2021-11-07 07:32:55,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:32:55,460 INFO L225 Difference]: With dead ends: 471 [2021-11-07 07:32:55,460 INFO L226 Difference]: Without dead ends: 470 [2021-11-07 07:32:55,462 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 457 SyntacticMatches, 0 SemanticMatches, 172 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4732 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=8439, Invalid=21663, Unknown=0, NotChecked=0, Total=30102 [2021-11-07 07:32:55,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2021-11-07 07:32:55,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 466. [2021-11-07 07:32:55,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 407 states have (on average 1.0024570024570025) internal successors, (408), 407 states have internal predecessors, (408), 58 states have call successors, (58), 58 states have call predecessors, (58), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:55,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 466 transitions. [2021-11-07 07:32:55,521 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 466 transitions. Word has length 457 [2021-11-07 07:32:55,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:32:55,522 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 466 transitions. [2021-11-07 07:32:55,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 117 states, 116 states have (on average 3.4482758620689653) internal successors, (400), 60 states have internal predecessors, (400), 57 states have call successors, (57), 57 states have call predecessors, (57), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:32:55,523 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 466 transitions. [2021-11-07 07:32:55,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-11-07 07:32:55,525 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:32:55,525 INFO L513 BasicCegarLoop]: trace histogram [58, 58, 58, 57, 57, 57, 57, 57, 1, 1, 1, 1, 1, 1] [2021-11-07 07:32:55,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2021-11-07 07:32:55,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,57 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:55,726 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:32:55,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:32:55,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1455884527, now seen corresponding path program 57 times [2021-11-07 07:32:55,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:32:55,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889311694] [2021-11-07 07:32:55,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:32:55,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:32:55,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:32:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 12996 backedges. 0 proven. 12996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:32:59,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:32:59,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889311694] [2021-11-07 07:32:59,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889311694] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:32:59,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449216320] [2021-11-07 07:32:59,657 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:32:59,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:32:59,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:32:59,658 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:32:59,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-11-07 07:33:04,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-11-07 07:33:04,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:33:04,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 968 conjuncts, 118 conjunts are in the unsatisfiable core [2021-11-07 07:33:04,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:33:05,383 INFO L134 CoverageAnalysis]: Checked inductivity of 12996 backedges. 0 proven. 12996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:05,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449216320] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:05,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:33:05,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [118, 118] total 118 [2021-11-07 07:33:05,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285595796] [2021-11-07 07:33:05,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2021-11-07 07:33:05,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:05,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2021-11-07 07:33:05,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3541, Invalid=10501, Unknown=0, NotChecked=0, Total=14042 [2021-11-07 07:33:05,386 INFO L87 Difference]: Start difference. First operand 466 states and 466 transitions. Second operand has 119 states, 118 states have (on average 3.4491525423728815) internal successors, (407), 61 states have internal predecessors, (407), 58 states have call successors, (58), 58 states have call predecessors, (58), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:08,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:08,169 INFO L93 Difference]: Finished difference Result 479 states and 479 transitions. [2021-11-07 07:33:08,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2021-11-07 07:33:08,170 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 3.4491525423728815) internal successors, (407), 61 states have internal predecessors, (407), 58 states have call successors, (58), 58 states have call predecessors, (58), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 465 [2021-11-07 07:33:08,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:08,172 INFO L225 Difference]: With dead ends: 479 [2021-11-07 07:33:08,172 INFO L226 Difference]: Without dead ends: 478 [2021-11-07 07:33:08,174 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 640 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4902 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=8732, Invalid=22420, Unknown=0, NotChecked=0, Total=31152 [2021-11-07 07:33:08,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2021-11-07 07:33:08,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 474. [2021-11-07 07:33:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 414 states have (on average 1.002415458937198) internal successors, (415), 414 states have internal predecessors, (415), 59 states have call successors, (59), 59 states have call predecessors, (59), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 474 transitions. [2021-11-07 07:33:08,211 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 474 transitions. Word has length 465 [2021-11-07 07:33:08,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:08,212 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 474 transitions. [2021-11-07 07:33:08,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 3.4491525423728815) internal successors, (407), 61 states have internal predecessors, (407), 58 states have call successors, (58), 58 states have call predecessors, (58), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:08,212 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 474 transitions. [2021-11-07 07:33:08,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-07 07:33:08,215 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:08,215 INFO L513 BasicCegarLoop]: trace histogram [59, 59, 59, 58, 58, 58, 58, 58, 1, 1, 1, 1, 1, 1] [2021-11-07 07:33:08,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2021-11-07 07:33:08,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,58 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:33:08,416 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:33:08,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:08,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1664261426, now seen corresponding path program 58 times [2021-11-07 07:33:08,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:08,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736829910] [2021-11-07 07:33:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:08,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:12,756 INFO L134 CoverageAnalysis]: Checked inductivity of 13456 backedges. 0 proven. 13456 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:12,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:12,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736829910] [2021-11-07 07:33:12,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736829910] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:12,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525768558] [2021-11-07 07:33:12,756 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:33:12,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:33:12,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:33:12,757 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:33:12,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-11-07 07:33:17,367 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:33:17,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:33:17,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 120 conjunts are in the unsatisfiable core [2021-11-07 07:33:17,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:33:18,632 INFO L134 CoverageAnalysis]: Checked inductivity of 13456 backedges. 0 proven. 13456 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:18,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525768558] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:18,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:33:18,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 120] total 120 [2021-11-07 07:33:18,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50487842] [2021-11-07 07:33:18,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2021-11-07 07:33:18,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:18,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2021-11-07 07:33:18,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3661, Invalid=10859, Unknown=0, NotChecked=0, Total=14520 [2021-11-07 07:33:18,635 INFO L87 Difference]: Start difference. First operand 474 states and 474 transitions. Second operand has 121 states, 120 states have (on average 3.45) internal successors, (414), 62 states have internal predecessors, (414), 59 states have call successors, (59), 59 states have call predecessors, (59), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:21,688 INFO L93 Difference]: Finished difference Result 487 states and 487 transitions. [2021-11-07 07:33:21,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2021-11-07 07:33:21,689 INFO L78 Accepts]: Start accepts. Automaton has has 121 states, 120 states have (on average 3.45) internal successors, (414), 62 states have internal predecessors, (414), 59 states have call successors, (59), 59 states have call predecessors, (59), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 473 [2021-11-07 07:33:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:21,692 INFO L225 Difference]: With dead ends: 487 [2021-11-07 07:33:21,692 INFO L226 Difference]: Without dead ends: 486 [2021-11-07 07:33:21,694 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 651 GetRequests, 473 SyntacticMatches, 0 SemanticMatches, 178 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5075 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=9030, Invalid=23190, Unknown=0, NotChecked=0, Total=32220 [2021-11-07 07:33:21,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2021-11-07 07:33:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 482. [2021-11-07 07:33:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 421 states have (on average 1.002375296912114) internal successors, (422), 421 states have internal predecessors, (422), 60 states have call successors, (60), 60 states have call predecessors, (60), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 482 transitions. [2021-11-07 07:33:21,747 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 482 transitions. Word has length 473 [2021-11-07 07:33:21,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:21,747 INFO L470 AbstractCegarLoop]: Abstraction has 482 states and 482 transitions. [2021-11-07 07:33:21,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 121 states, 120 states have (on average 3.45) internal successors, (414), 62 states have internal predecessors, (414), 59 states have call successors, (59), 59 states have call predecessors, (59), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 482 transitions. [2021-11-07 07:33:21,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2021-11-07 07:33:21,750 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:21,750 INFO L513 BasicCegarLoop]: trace histogram [60, 60, 60, 59, 59, 59, 59, 59, 1, 1, 1, 1, 1, 1] [2021-11-07 07:33:21,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Ended with exit code 0 [2021-11-07 07:33:21,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-11-07 07:33:21,951 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:33:21,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:21,951 INFO L85 PathProgramCache]: Analyzing trace with hash -850607733, now seen corresponding path program 59 times [2021-11-07 07:33:21,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:21,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912940251] [2021-11-07 07:33:21,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:21,952 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 13924 backedges. 0 proven. 13924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:26,047 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:26,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912940251] [2021-11-07 07:33:26,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912940251] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:26,047 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382217834] [2021-11-07 07:33:26,047 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:33:26,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:33:26,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:33:26,048 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:33:26,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-11-07 07:33:30,615 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-11-07 07:33:30,615 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:33:30,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 1000 conjuncts, 122 conjunts are in the unsatisfiable core [2021-11-07 07:33:30,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:33:31,825 INFO L134 CoverageAnalysis]: Checked inductivity of 13924 backedges. 0 proven. 13924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:31,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382217834] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:31,826 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:33:31,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 122] total 122 [2021-11-07 07:33:31,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359364082] [2021-11-07 07:33:31,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2021-11-07 07:33:31,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:31,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2021-11-07 07:33:31,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3783, Invalid=11223, Unknown=0, NotChecked=0, Total=15006 [2021-11-07 07:33:31,828 INFO L87 Difference]: Start difference. First operand 482 states and 482 transitions. Second operand has 123 states, 122 states have (on average 3.4508196721311477) internal successors, (421), 63 states have internal predecessors, (421), 60 states have call successors, (60), 60 states have call predecessors, (60), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:34,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:34,698 INFO L93 Difference]: Finished difference Result 495 states and 495 transitions. [2021-11-07 07:33:34,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2021-11-07 07:33:34,698 INFO L78 Accepts]: Start accepts. Automaton has has 123 states, 122 states have (on average 3.4508196721311477) internal successors, (421), 63 states have internal predecessors, (421), 60 states have call successors, (60), 60 states have call predecessors, (60), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 481 [2021-11-07 07:33:34,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:34,700 INFO L225 Difference]: With dead ends: 495 [2021-11-07 07:33:34,700 INFO L226 Difference]: Without dead ends: 494 [2021-11-07 07:33:34,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 662 GetRequests, 481 SyntacticMatches, 0 SemanticMatches, 181 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5251 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=9333, Invalid=23973, Unknown=0, NotChecked=0, Total=33306 [2021-11-07 07:33:34,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-11-07 07:33:34,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 490. [2021-11-07 07:33:34,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 428 states have (on average 1.0023364485981308) internal successors, (429), 428 states have internal predecessors, (429), 61 states have call successors, (61), 61 states have call predecessors, (61), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:34,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 490 transitions. [2021-11-07 07:33:34,751 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 490 transitions. Word has length 481 [2021-11-07 07:33:34,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:34,751 INFO L470 AbstractCegarLoop]: Abstraction has 490 states and 490 transitions. [2021-11-07 07:33:34,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 122 states have (on average 3.4508196721311477) internal successors, (421), 63 states have internal predecessors, (421), 60 states have call successors, (60), 60 states have call predecessors, (60), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:34,752 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 490 transitions. [2021-11-07 07:33:34,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2021-11-07 07:33:34,754 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:34,754 INFO L513 BasicCegarLoop]: trace histogram [61, 61, 61, 60, 60, 60, 60, 60, 1, 1, 1, 1, 1, 1] [2021-11-07 07:33:34,789 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Forceful destruction successful, exit code 0 [2021-11-07 07:33:34,955 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-11-07 07:33:34,955 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:33:34,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:34,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1508633784, now seen corresponding path program 60 times [2021-11-07 07:33:34,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:34,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134155281] [2021-11-07 07:33:34,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:34,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:38,929 INFO L134 CoverageAnalysis]: Checked inductivity of 14400 backedges. 0 proven. 14400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:38,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:38,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134155281] [2021-11-07 07:33:38,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134155281] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:38,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941232263] [2021-11-07 07:33:38,929 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:33:38,930 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:33:38,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:33:38,932 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:33:38,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-11-07 07:33:43,732 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-11-07 07:33:43,732 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:33:43,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 124 conjunts are in the unsatisfiable core [2021-11-07 07:33:43,744 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:33:44,890 INFO L134 CoverageAnalysis]: Checked inductivity of 14400 backedges. 0 proven. 14400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:44,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941232263] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:44,890 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:33:44,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 124] total 124 [2021-11-07 07:33:44,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299532265] [2021-11-07 07:33:44,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2021-11-07 07:33:44,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:44,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2021-11-07 07:33:44,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3907, Invalid=11593, Unknown=0, NotChecked=0, Total=15500 [2021-11-07 07:33:44,893 INFO L87 Difference]: Start difference. First operand 490 states and 490 transitions. Second operand has 125 states, 124 states have (on average 3.4516129032258065) internal successors, (428), 64 states have internal predecessors, (428), 61 states have call successors, (61), 61 states have call predecessors, (61), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:47,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:33:47,744 INFO L93 Difference]: Finished difference Result 503 states and 503 transitions. [2021-11-07 07:33:47,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-11-07 07:33:47,745 INFO L78 Accepts]: Start accepts. Automaton has has 125 states, 124 states have (on average 3.4516129032258065) internal successors, (428), 64 states have internal predecessors, (428), 61 states have call successors, (61), 61 states have call predecessors, (61), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 489 [2021-11-07 07:33:47,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:33:47,747 INFO L225 Difference]: With dead ends: 503 [2021-11-07 07:33:47,747 INFO L226 Difference]: Without dead ends: 502 [2021-11-07 07:33:47,749 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 489 SyntacticMatches, 0 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5430 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=9641, Invalid=24769, Unknown=0, NotChecked=0, Total=34410 [2021-11-07 07:33:47,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-11-07 07:33:47,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 498. [2021-11-07 07:33:47,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 435 states have (on average 1.0022988505747126) internal successors, (436), 435 states have internal predecessors, (436), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:47,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 498 transitions. [2021-11-07 07:33:47,789 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 498 transitions. Word has length 489 [2021-11-07 07:33:47,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:33:47,790 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 498 transitions. [2021-11-07 07:33:47,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 124 states have (on average 3.4516129032258065) internal successors, (428), 64 states have internal predecessors, (428), 61 states have call successors, (61), 61 states have call predecessors, (61), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:33:47,790 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 498 transitions. [2021-11-07 07:33:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2021-11-07 07:33:47,792 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:33:47,792 INFO L513 BasicCegarLoop]: trace histogram [62, 62, 62, 61, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1] [2021-11-07 07:33:47,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-11-07 07:33:47,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,61 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:33:47,993 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:33:47,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:33:47,993 INFO L85 PathProgramCache]: Analyzing trace with hash -444573691, now seen corresponding path program 61 times [2021-11-07 07:33:47,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:33:47,993 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095014514] [2021-11-07 07:33:47,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:33:47,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:33:48,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:52,591 INFO L134 CoverageAnalysis]: Checked inductivity of 14884 backedges. 0 proven. 14884 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:52,592 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:33:52,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095014514] [2021-11-07 07:33:52,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095014514] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:52,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197836023] [2021-11-07 07:33:52,592 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:33:52,593 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:33:52,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:33:52,604 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:33:52,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-11-07 07:33:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:33:57,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 126 conjunts are in the unsatisfiable core [2021-11-07 07:33:57,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:33:58,521 INFO L134 CoverageAnalysis]: Checked inductivity of 14884 backedges. 0 proven. 14884 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:33:58,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197836023] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:33:58,522 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:33:58,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [126, 126] total 126 [2021-11-07 07:33:58,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157461927] [2021-11-07 07:33:58,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2021-11-07 07:33:58,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:33:58,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2021-11-07 07:33:58,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4033, Invalid=11969, Unknown=0, NotChecked=0, Total=16002 [2021-11-07 07:33:58,539 INFO L87 Difference]: Start difference. First operand 498 states and 498 transitions. Second operand has 127 states, 126 states have (on average 3.4523809523809526) internal successors, (435), 65 states have internal predecessors, (435), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:02,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:02,016 INFO L93 Difference]: Finished difference Result 511 states and 511 transitions. [2021-11-07 07:34:02,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2021-11-07 07:34:02,017 INFO L78 Accepts]: Start accepts. Automaton has has 127 states, 126 states have (on average 3.4523809523809526) internal successors, (435), 65 states have internal predecessors, (435), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 497 [2021-11-07 07:34:02,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:02,021 INFO L225 Difference]: With dead ends: 511 [2021-11-07 07:34:02,021 INFO L226 Difference]: Without dead ends: 510 [2021-11-07 07:34:02,050 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 684 GetRequests, 497 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5612 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=9954, Invalid=25578, Unknown=0, NotChecked=0, Total=35532 [2021-11-07 07:34:02,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-11-07 07:34:02,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 506. [2021-11-07 07:34:02,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 442 states have (on average 1.002262443438914) internal successors, (443), 442 states have internal predecessors, (443), 63 states have call successors, (63), 63 states have call predecessors, (63), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:02,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 506 transitions. [2021-11-07 07:34:02,118 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 506 transitions. Word has length 497 [2021-11-07 07:34:02,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:02,119 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 506 transitions. [2021-11-07 07:34:02,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 126 states have (on average 3.4523809523809526) internal successors, (435), 65 states have internal predecessors, (435), 62 states have call successors, (62), 62 states have call predecessors, (62), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:02,120 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 506 transitions. [2021-11-07 07:34:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-11-07 07:34:02,124 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:02,124 INFO L513 BasicCegarLoop]: trace histogram [63, 63, 63, 62, 62, 62, 62, 62, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:02,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Forceful destruction successful, exit code 0 [2021-11-07 07:34:02,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-11-07 07:34:02,339 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:34:02,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:02,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1662087230, now seen corresponding path program 62 times [2021-11-07 07:34:02,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:02,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98896898] [2021-11-07 07:34:02,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:02,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:06,863 INFO L134 CoverageAnalysis]: Checked inductivity of 15376 backedges. 0 proven. 15376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:06,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:06,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98896898] [2021-11-07 07:34:06,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98896898] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:06,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58941808] [2021-11-07 07:34:06,863 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:34:06,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:06,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:06,864 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:06,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-11-07 07:34:11,828 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:34:11,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:34:11,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 128 conjunts are in the unsatisfiable core [2021-11-07 07:34:11,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:13,045 INFO L134 CoverageAnalysis]: Checked inductivity of 15376 backedges. 0 proven. 15376 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:13,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58941808] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:13,045 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:34:13,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128] total 128 [2021-11-07 07:34:13,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896027129] [2021-11-07 07:34:13,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2021-11-07 07:34:13,047 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:13,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2021-11-07 07:34:13,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4161, Invalid=12351, Unknown=0, NotChecked=0, Total=16512 [2021-11-07 07:34:13,051 INFO L87 Difference]: Start difference. First operand 506 states and 506 transitions. Second operand has 129 states, 128 states have (on average 3.453125) internal successors, (442), 66 states have internal predecessors, (442), 63 states have call successors, (63), 63 states have call predecessors, (63), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:16,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:16,349 INFO L93 Difference]: Finished difference Result 519 states and 519 transitions. [2021-11-07 07:34:16,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 129 states. [2021-11-07 07:34:16,351 INFO L78 Accepts]: Start accepts. Automaton has has 129 states, 128 states have (on average 3.453125) internal successors, (442), 66 states have internal predecessors, (442), 63 states have call successors, (63), 63 states have call predecessors, (63), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 505 [2021-11-07 07:34:16,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:16,354 INFO L225 Difference]: With dead ends: 519 [2021-11-07 07:34:16,355 INFO L226 Difference]: Without dead ends: 518 [2021-11-07 07:34:16,358 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5797 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=10272, Invalid=26400, Unknown=0, NotChecked=0, Total=36672 [2021-11-07 07:34:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2021-11-07 07:34:16,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 514. [2021-11-07 07:34:16,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 449 states have (on average 1.0022271714922049) internal successors, (450), 449 states have internal predecessors, (450), 64 states have call successors, (64), 64 states have call predecessors, (64), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:16,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 514 transitions. [2021-11-07 07:34:16,427 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 514 transitions. Word has length 505 [2021-11-07 07:34:16,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:16,428 INFO L470 AbstractCegarLoop]: Abstraction has 514 states and 514 transitions. [2021-11-07 07:34:16,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 128 states have (on average 3.453125) internal successors, (442), 66 states have internal predecessors, (442), 63 states have call successors, (63), 63 states have call predecessors, (63), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:16,429 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 514 transitions. [2021-11-07 07:34:16,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2021-11-07 07:34:16,432 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:16,433 INFO L513 BasicCegarLoop]: trace histogram [64, 64, 64, 63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:16,478 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Forceful destruction successful, exit code 0 [2021-11-07 07:34:16,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-11-07 07:34:16,655 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:34:16,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:16,655 INFO L85 PathProgramCache]: Analyzing trace with hash 817609343, now seen corresponding path program 63 times [2021-11-07 07:34:16,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:16,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688292861] [2021-11-07 07:34:16,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:16,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:16,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:21,092 INFO L134 CoverageAnalysis]: Checked inductivity of 15876 backedges. 0 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:21,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:21,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688292861] [2021-11-07 07:34:21,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688292861] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:21,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691832132] [2021-11-07 07:34:21,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:34:21,093 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:21,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:21,099 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:21,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-11-07 07:34:26,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-11-07 07:34:26,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:34:26,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 1064 conjuncts, 130 conjunts are in the unsatisfiable core [2021-11-07 07:34:26,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 15876 backedges. 0 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:27,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691832132] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:27,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:34:27,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [130, 130] total 130 [2021-11-07 07:34:27,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719815191] [2021-11-07 07:34:27,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2021-11-07 07:34:27,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:27,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2021-11-07 07:34:27,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4291, Invalid=12739, Unknown=0, NotChecked=0, Total=17030 [2021-11-07 07:34:27,670 INFO L87 Difference]: Start difference. First operand 514 states and 514 transitions. Second operand has 131 states, 130 states have (on average 3.453846153846154) internal successors, (449), 67 states have internal predecessors, (449), 64 states have call successors, (64), 64 states have call predecessors, (64), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:31,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:31,203 INFO L93 Difference]: Finished difference Result 527 states and 527 transitions. [2021-11-07 07:34:31,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 131 states. [2021-11-07 07:34:31,204 INFO L78 Accepts]: Start accepts. Automaton has has 131 states, 130 states have (on average 3.453846153846154) internal successors, (449), 67 states have internal predecessors, (449), 64 states have call successors, (64), 64 states have call predecessors, (64), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 513 [2021-11-07 07:34:31,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:31,208 INFO L225 Difference]: With dead ends: 527 [2021-11-07 07:34:31,208 INFO L226 Difference]: Without dead ends: 526 [2021-11-07 07:34:31,213 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 706 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 193 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5985 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=10595, Invalid=27235, Unknown=0, NotChecked=0, Total=37830 [2021-11-07 07:34:31,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-11-07 07:34:31,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 522. [2021-11-07 07:34:31,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 456 states have (on average 1.0021929824561404) internal successors, (457), 456 states have internal predecessors, (457), 65 states have call successors, (65), 65 states have call predecessors, (65), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:31,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 522 transitions. [2021-11-07 07:34:31,367 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 522 transitions. Word has length 513 [2021-11-07 07:34:31,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:31,368 INFO L470 AbstractCegarLoop]: Abstraction has 522 states and 522 transitions. [2021-11-07 07:34:31,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 130 states have (on average 3.453846153846154) internal successors, (449), 67 states have internal predecessors, (449), 64 states have call successors, (64), 64 states have call predecessors, (64), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:31,368 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 522 transitions. [2021-11-07 07:34:31,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2021-11-07 07:34:31,370 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:31,370 INFO L513 BasicCegarLoop]: trace histogram [65, 65, 65, 64, 64, 64, 64, 64, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:31,410 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-11-07 07:34:31,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,64 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:31,571 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:34:31,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:31,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1480906812, now seen corresponding path program 64 times [2021-11-07 07:34:31,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:31,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050042315] [2021-11-07 07:34:31,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:31,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:31,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 16384 backedges. 0 proven. 16384 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:36,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:36,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050042315] [2021-11-07 07:34:36,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050042315] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:36,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081425034] [2021-11-07 07:34:36,051 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:34:36,051 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:36,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:36,061 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:36,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-11-07 07:34:41,254 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:34:41,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:34:41,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 1080 conjuncts, 132 conjunts are in the unsatisfiable core [2021-11-07 07:34:41,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:42,532 INFO L134 CoverageAnalysis]: Checked inductivity of 16384 backedges. 0 proven. 16384 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:42,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081425034] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:42,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:34:42,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [132, 132] total 132 [2021-11-07 07:34:42,533 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420075103] [2021-11-07 07:34:42,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2021-11-07 07:34:42,534 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:42,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2021-11-07 07:34:42,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4423, Invalid=13133, Unknown=0, NotChecked=0, Total=17556 [2021-11-07 07:34:42,539 INFO L87 Difference]: Start difference. First operand 522 states and 522 transitions. Second operand has 133 states, 132 states have (on average 3.4545454545454546) internal successors, (456), 68 states have internal predecessors, (456), 65 states have call successors, (65), 65 states have call predecessors, (65), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:46,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:34:46,183 INFO L93 Difference]: Finished difference Result 535 states and 535 transitions. [2021-11-07 07:34:46,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2021-11-07 07:34:46,184 INFO L78 Accepts]: Start accepts. Automaton has has 133 states, 132 states have (on average 3.4545454545454546) internal successors, (456), 68 states have internal predecessors, (456), 65 states have call successors, (65), 65 states have call predecessors, (65), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 521 [2021-11-07 07:34:46,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:34:46,186 INFO L225 Difference]: With dead ends: 535 [2021-11-07 07:34:46,186 INFO L226 Difference]: Without dead ends: 534 [2021-11-07 07:34:46,188 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 717 GetRequests, 521 SyntacticMatches, 0 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6176 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=10923, Invalid=28083, Unknown=0, NotChecked=0, Total=39006 [2021-11-07 07:34:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-11-07 07:34:46,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 530. [2021-11-07 07:34:46,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 463 states have (on average 1.0021598272138228) internal successors, (464), 463 states have internal predecessors, (464), 66 states have call successors, (66), 66 states have call predecessors, (66), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:46,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 530 transitions. [2021-11-07 07:34:46,255 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 530 transitions. Word has length 521 [2021-11-07 07:34:46,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:34:46,256 INFO L470 AbstractCegarLoop]: Abstraction has 530 states and 530 transitions. [2021-11-07 07:34:46,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 133 states, 132 states have (on average 3.4545454545454546) internal successors, (456), 68 states have internal predecessors, (456), 65 states have call successors, (65), 65 states have call predecessors, (65), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:34:46,256 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 530 transitions. [2021-11-07 07:34:46,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2021-11-07 07:34:46,258 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:34:46,259 INFO L513 BasicCegarLoop]: trace histogram [66, 66, 66, 65, 65, 65, 65, 65, 1, 1, 1, 1, 1, 1] [2021-11-07 07:34:46,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-11-07 07:34:46,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2021-11-07 07:34:46,459 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:34:46,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:34:46,460 INFO L85 PathProgramCache]: Analyzing trace with hash 501672185, now seen corresponding path program 65 times [2021-11-07 07:34:46,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:34:46,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094136929] [2021-11-07 07:34:46,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:34:46,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:34:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:34:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 16900 backedges. 0 proven. 16900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:51,086 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:34:51,086 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094136929] [2021-11-07 07:34:51,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094136929] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:51,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453180211] [2021-11-07 07:34:51,087 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:34:51,087 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:34:51,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:34:51,088 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:34:51,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-11-07 07:34:56,616 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2021-11-07 07:34:56,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:34:56,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 1096 conjuncts, 134 conjunts are in the unsatisfiable core [2021-11-07 07:34:56,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:34:57,925 INFO L134 CoverageAnalysis]: Checked inductivity of 16900 backedges. 0 proven. 16900 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:34:57,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453180211] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:34:57,926 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:34:57,926 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [134, 134] total 134 [2021-11-07 07:34:57,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737874490] [2021-11-07 07:34:57,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 135 states [2021-11-07 07:34:57,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:34:57,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2021-11-07 07:34:57,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4557, Invalid=13533, Unknown=0, NotChecked=0, Total=18090 [2021-11-07 07:34:57,930 INFO L87 Difference]: Start difference. First operand 530 states and 530 transitions. Second operand has 135 states, 134 states have (on average 3.455223880597015) internal successors, (463), 69 states have internal predecessors, (463), 66 states have call successors, (66), 66 states have call predecessors, (66), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:01,478 INFO L93 Difference]: Finished difference Result 543 states and 543 transitions. [2021-11-07 07:35:01,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2021-11-07 07:35:01,478 INFO L78 Accepts]: Start accepts. Automaton has has 135 states, 134 states have (on average 3.455223880597015) internal successors, (463), 69 states have internal predecessors, (463), 66 states have call successors, (66), 66 states have call predecessors, (66), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 529 [2021-11-07 07:35:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:01,481 INFO L225 Difference]: With dead ends: 543 [2021-11-07 07:35:01,481 INFO L226 Difference]: Without dead ends: 542 [2021-11-07 07:35:01,483 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 728 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6370 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=11256, Invalid=28944, Unknown=0, NotChecked=0, Total=40200 [2021-11-07 07:35:01,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2021-11-07 07:35:01,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 538. [2021-11-07 07:35:01,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 470 states have (on average 1.0021276595744681) internal successors, (471), 470 states have internal predecessors, (471), 67 states have call successors, (67), 67 states have call predecessors, (67), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:01,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 538 transitions. [2021-11-07 07:35:01,530 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 538 transitions. Word has length 529 [2021-11-07 07:35:01,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:01,530 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 538 transitions. [2021-11-07 07:35:01,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 135 states, 134 states have (on average 3.455223880597015) internal successors, (463), 69 states have internal predecessors, (463), 66 states have call successors, (66), 66 states have call predecessors, (66), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:01,531 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 538 transitions. [2021-11-07 07:35:01,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2021-11-07 07:35:01,535 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:01,535 INFO L513 BasicCegarLoop]: trace histogram [67, 67, 67, 66, 66, 66, 66, 66, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:01,591 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:01,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,66 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:01,763 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:35:01,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:01,763 INFO L85 PathProgramCache]: Analyzing trace with hash -553718602, now seen corresponding path program 66 times [2021-11-07 07:35:01,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:01,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830385225] [2021-11-07 07:35:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:01,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:01,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 17424 backedges. 0 proven. 17424 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:06,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:06,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830385225] [2021-11-07 07:35:06,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830385225] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:06,671 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364693586] [2021-11-07 07:35:06,671 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:35:06,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:06,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:06,672 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:06,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-11-07 07:35:12,419 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2021-11-07 07:35:12,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:35:12,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 1112 conjuncts, 136 conjunts are in the unsatisfiable core [2021-11-07 07:35:12,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:13,732 INFO L134 CoverageAnalysis]: Checked inductivity of 17424 backedges. 0 proven. 17424 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:13,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364693586] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:13,732 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:13,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [136, 136] total 136 [2021-11-07 07:35:13,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107069301] [2021-11-07 07:35:13,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2021-11-07 07:35:13,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:13,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2021-11-07 07:35:13,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4693, Invalid=13939, Unknown=0, NotChecked=0, Total=18632 [2021-11-07 07:35:13,738 INFO L87 Difference]: Start difference. First operand 538 states and 538 transitions. Second operand has 137 states, 136 states have (on average 3.4558823529411766) internal successors, (470), 70 states have internal predecessors, (470), 67 states have call successors, (67), 67 states have call predecessors, (67), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:17,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:17,500 INFO L93 Difference]: Finished difference Result 551 states and 551 transitions. [2021-11-07 07:35:17,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2021-11-07 07:35:17,500 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 136 states have (on average 3.4558823529411766) internal successors, (470), 70 states have internal predecessors, (470), 67 states have call successors, (67), 67 states have call predecessors, (67), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 537 [2021-11-07 07:35:17,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:17,504 INFO L225 Difference]: With dead ends: 551 [2021-11-07 07:35:17,504 INFO L226 Difference]: Without dead ends: 550 [2021-11-07 07:35:17,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 739 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6567 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=11594, Invalid=29818, Unknown=0, NotChecked=0, Total=41412 [2021-11-07 07:35:17,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-11-07 07:35:17,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 546. [2021-11-07 07:35:17,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 477 states have (on average 1.0020964360587001) internal successors, (478), 477 states have internal predecessors, (478), 68 states have call successors, (68), 68 states have call predecessors, (68), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:17,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 546 transitions. [2021-11-07 07:35:17,586 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 546 transitions. Word has length 537 [2021-11-07 07:35:17,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:17,586 INFO L470 AbstractCegarLoop]: Abstraction has 546 states and 546 transitions. [2021-11-07 07:35:17,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 136 states have (on average 3.4558823529411766) internal successors, (470), 70 states have internal predecessors, (470), 67 states have call successors, (67), 67 states have call predecessors, (67), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:17,587 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 546 transitions. [2021-11-07 07:35:17,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2021-11-07 07:35:17,591 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:17,591 INFO L513 BasicCegarLoop]: trace histogram [68, 68, 68, 67, 67, 67, 67, 67, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:17,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Forceful destruction successful, exit code 0 [2021-11-07 07:35:17,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,67 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:17,815 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:35:17,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:17,815 INFO L85 PathProgramCache]: Analyzing trace with hash 1273619315, now seen corresponding path program 67 times [2021-11-07 07:35:17,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:17,815 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407290342] [2021-11-07 07:35:17,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:17,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 17956 backedges. 0 proven. 17956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:22,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:22,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407290342] [2021-11-07 07:35:22,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407290342] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:22,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6847532] [2021-11-07 07:35:22,819 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:35:22,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:22,820 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:22,820 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:22,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-11-07 07:35:28,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:28,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 138 conjunts are in the unsatisfiable core [2021-11-07 07:35:28,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:29,816 INFO L134 CoverageAnalysis]: Checked inductivity of 17956 backedges. 0 proven. 17956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:29,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6847532] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:29,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:29,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [138, 138] total 138 [2021-11-07 07:35:29,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502568909] [2021-11-07 07:35:29,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2021-11-07 07:35:29,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:29,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2021-11-07 07:35:29,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4831, Invalid=14351, Unknown=0, NotChecked=0, Total=19182 [2021-11-07 07:35:29,820 INFO L87 Difference]: Start difference. First operand 546 states and 546 transitions. Second operand has 139 states, 138 states have (on average 3.4565217391304346) internal successors, (477), 71 states have internal predecessors, (477), 68 states have call successors, (68), 68 states have call predecessors, (68), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:33,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:33,548 INFO L93 Difference]: Finished difference Result 559 states and 559 transitions. [2021-11-07 07:35:33,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2021-11-07 07:35:33,548 INFO L78 Accepts]: Start accepts. Automaton has has 139 states, 138 states have (on average 3.4565217391304346) internal successors, (477), 71 states have internal predecessors, (477), 68 states have call successors, (68), 68 states have call predecessors, (68), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 545 [2021-11-07 07:35:33,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:33,551 INFO L225 Difference]: With dead ends: 559 [2021-11-07 07:35:33,551 INFO L226 Difference]: Without dead ends: 558 [2021-11-07 07:35:33,554 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6767 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=11937, Invalid=30705, Unknown=0, NotChecked=0, Total=42642 [2021-11-07 07:35:33,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2021-11-07 07:35:33,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 554. [2021-11-07 07:35:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 484 states have (on average 1.0020661157024793) internal successors, (485), 484 states have internal predecessors, (485), 69 states have call successors, (69), 69 states have call predecessors, (69), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:33,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 554 transitions. [2021-11-07 07:35:33,604 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 554 transitions. Word has length 545 [2021-11-07 07:35:33,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:33,605 INFO L470 AbstractCegarLoop]: Abstraction has 554 states and 554 transitions. [2021-11-07 07:35:33,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 138 states have (on average 3.4565217391304346) internal successors, (477), 71 states have internal predecessors, (477), 68 states have call successors, (68), 68 states have call predecessors, (68), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:33,605 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 554 transitions. [2021-11-07 07:35:33,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2021-11-07 07:35:33,608 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:33,608 INFO L513 BasicCegarLoop]: trace histogram [69, 69, 69, 68, 68, 68, 68, 68, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:33,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Ended with exit code 0 [2021-11-07 07:35:33,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 68 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable74 [2021-11-07 07:35:33,808 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:35:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:33,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1745145136, now seen corresponding path program 68 times [2021-11-07 07:35:33,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:33,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482004281] [2021-11-07 07:35:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:33,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:33,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:38,865 INFO L134 CoverageAnalysis]: Checked inductivity of 18496 backedges. 0 proven. 18496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:38,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:38,865 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482004281] [2021-11-07 07:35:38,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482004281] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:38,866 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [583148217] [2021-11-07 07:35:38,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:35:38,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:38,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:38,867 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:38,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-11-07 07:35:44,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:35:44,766 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:35:44,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 140 conjunts are in the unsatisfiable core [2021-11-07 07:35:44,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:35:46,215 INFO L134 CoverageAnalysis]: Checked inductivity of 18496 backedges. 0 proven. 18496 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:46,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [583148217] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:46,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:35:46,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [140, 140] total 140 [2021-11-07 07:35:46,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327367489] [2021-11-07 07:35:46,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2021-11-07 07:35:46,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:35:46,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2021-11-07 07:35:46,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4971, Invalid=14769, Unknown=0, NotChecked=0, Total=19740 [2021-11-07 07:35:46,220 INFO L87 Difference]: Start difference. First operand 554 states and 554 transitions. Second operand has 141 states, 140 states have (on average 3.4571428571428573) internal successors, (484), 72 states have internal predecessors, (484), 69 states have call successors, (69), 69 states have call predecessors, (69), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:50,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:35:50,263 INFO L93 Difference]: Finished difference Result 567 states and 567 transitions. [2021-11-07 07:35:50,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2021-11-07 07:35:50,263 INFO L78 Accepts]: Start accepts. Automaton has has 141 states, 140 states have (on average 3.4571428571428573) internal successors, (484), 72 states have internal predecessors, (484), 69 states have call successors, (69), 69 states have call predecessors, (69), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 553 [2021-11-07 07:35:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:35:50,266 INFO L225 Difference]: With dead ends: 567 [2021-11-07 07:35:50,266 INFO L226 Difference]: Without dead ends: 566 [2021-11-07 07:35:50,268 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6970 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=12285, Invalid=31605, Unknown=0, NotChecked=0, Total=43890 [2021-11-07 07:35:50,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2021-11-07 07:35:50,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 562. [2021-11-07 07:35:50,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 491 states have (on average 1.0020366598778003) internal successors, (492), 491 states have internal predecessors, (492), 70 states have call successors, (70), 70 states have call predecessors, (70), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:50,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 562 transitions. [2021-11-07 07:35:50,321 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 562 transitions. Word has length 553 [2021-11-07 07:35:50,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:35:50,321 INFO L470 AbstractCegarLoop]: Abstraction has 562 states and 562 transitions. [2021-11-07 07:35:50,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 140 states have (on average 3.4571428571428573) internal successors, (484), 72 states have internal predecessors, (484), 69 states have call successors, (69), 69 states have call predecessors, (69), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:35:50,321 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 562 transitions. [2021-11-07 07:35:50,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2021-11-07 07:35:50,324 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:35:50,324 INFO L513 BasicCegarLoop]: trace histogram [70, 70, 70, 69, 69, 69, 69, 69, 1, 1, 1, 1, 1, 1] [2021-11-07 07:35:50,365 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Ended with exit code 0 [2021-11-07 07:35:50,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-11-07 07:35:50,525 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:35:50,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:35:50,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1985173011, now seen corresponding path program 69 times [2021-11-07 07:35:50,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:35:50,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283004026] [2021-11-07 07:35:50,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:35:50,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:35:50,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:35:55,702 INFO L134 CoverageAnalysis]: Checked inductivity of 19044 backedges. 0 proven. 19044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:35:55,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:35:55,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283004026] [2021-11-07 07:35:55,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283004026] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:35:55,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1669851614] [2021-11-07 07:35:55,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:35:55,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:35:55,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:35:55,703 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:35:55,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-11-07 07:36:01,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2021-11-07 07:36:01,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:36:01,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 142 conjunts are in the unsatisfiable core [2021-11-07 07:36:01,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:36:03,501 INFO L134 CoverageAnalysis]: Checked inductivity of 19044 backedges. 0 proven. 19044 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:03,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1669851614] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:03,502 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:36:03,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [142, 142] total 142 [2021-11-07 07:36:03,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705198477] [2021-11-07 07:36:03,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2021-11-07 07:36:03,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:03,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2021-11-07 07:36:03,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5113, Invalid=15193, Unknown=0, NotChecked=0, Total=20306 [2021-11-07 07:36:03,505 INFO L87 Difference]: Start difference. First operand 562 states and 562 transitions. Second operand has 143 states, 142 states have (on average 3.4577464788732395) internal successors, (491), 73 states have internal predecessors, (491), 70 states have call successors, (70), 70 states have call predecessors, (70), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:07,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:07,614 INFO L93 Difference]: Finished difference Result 575 states and 575 transitions. [2021-11-07 07:36:07,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2021-11-07 07:36:07,614 INFO L78 Accepts]: Start accepts. Automaton has has 143 states, 142 states have (on average 3.4577464788732395) internal successors, (491), 73 states have internal predecessors, (491), 70 states have call successors, (70), 70 states have call predecessors, (70), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 561 [2021-11-07 07:36:07,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:07,617 INFO L225 Difference]: With dead ends: 575 [2021-11-07 07:36:07,617 INFO L226 Difference]: Without dead ends: 574 [2021-11-07 07:36:07,620 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 561 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7176 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=12638, Invalid=32518, Unknown=0, NotChecked=0, Total=45156 [2021-11-07 07:36:07,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 574 states. [2021-11-07 07:36:07,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 574 to 570. [2021-11-07 07:36:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 498 states have (on average 1.002008032128514) internal successors, (499), 498 states have internal predecessors, (499), 71 states have call successors, (71), 71 states have call predecessors, (71), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:07,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 570 transitions. [2021-11-07 07:36:07,673 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 570 transitions. Word has length 561 [2021-11-07 07:36:07,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:07,673 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 570 transitions. [2021-11-07 07:36:07,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 142 states have (on average 3.4577464788732395) internal successors, (491), 73 states have internal predecessors, (491), 70 states have call successors, (70), 70 states have call predecessors, (70), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:07,674 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 570 transitions. [2021-11-07 07:36:07,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2021-11-07 07:36:07,676 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:07,677 INFO L513 BasicCegarLoop]: trace histogram [71, 71, 71, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:07,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2021-11-07 07:36:07,878 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,70 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:36:07,878 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:36:07,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1514043818, now seen corresponding path program 70 times [2021-11-07 07:36:07,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:07,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969519989] [2021-11-07 07:36:07,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:07,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 19600 backedges. 0 proven. 19600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:13,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:13,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969519989] [2021-11-07 07:36:13,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969519989] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:13,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728170651] [2021-11-07 07:36:13,504 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:36:13,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:36:13,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:36:13,505 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:36:13,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-11-07 07:36:19,805 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:36:19,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:36:19,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 1176 conjuncts, 144 conjunts are in the unsatisfiable core [2021-11-07 07:36:19,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:36:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 19600 backedges. 0 proven. 19600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:21,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728170651] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:21,182 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:36:21,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [144, 144] total 144 [2021-11-07 07:36:21,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790384412] [2021-11-07 07:36:21,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2021-11-07 07:36:21,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:21,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2021-11-07 07:36:21,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5257, Invalid=15623, Unknown=0, NotChecked=0, Total=20880 [2021-11-07 07:36:21,186 INFO L87 Difference]: Start difference. First operand 570 states and 570 transitions. Second operand has 145 states, 144 states have (on average 3.4583333333333335) internal successors, (498), 74 states have internal predecessors, (498), 71 states have call successors, (71), 71 states have call predecessors, (71), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:25,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:25,452 INFO L93 Difference]: Finished difference Result 583 states and 583 transitions. [2021-11-07 07:36:25,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 145 states. [2021-11-07 07:36:25,452 INFO L78 Accepts]: Start accepts. Automaton has has 145 states, 144 states have (on average 3.4583333333333335) internal successors, (498), 74 states have internal predecessors, (498), 71 states have call successors, (71), 71 states have call predecessors, (71), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 569 [2021-11-07 07:36:25,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:25,455 INFO L225 Difference]: With dead ends: 583 [2021-11-07 07:36:25,455 INFO L226 Difference]: Without dead ends: 582 [2021-11-07 07:36:25,457 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7385 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=12996, Invalid=33444, Unknown=0, NotChecked=0, Total=46440 [2021-11-07 07:36:25,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2021-11-07 07:36:25,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2021-11-07 07:36:25,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 505 states have (on average 1.001980198019802) internal successors, (506), 505 states have internal predecessors, (506), 72 states have call successors, (72), 72 states have call predecessors, (72), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:25,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 578 transitions. [2021-11-07 07:36:25,516 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 578 transitions. Word has length 569 [2021-11-07 07:36:25,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:25,517 INFO L470 AbstractCegarLoop]: Abstraction has 578 states and 578 transitions. [2021-11-07 07:36:25,517 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 144 states have (on average 3.4583333333333335) internal successors, (498), 74 states have internal predecessors, (498), 71 states have call successors, (71), 71 states have call predecessors, (71), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:25,517 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 578 transitions. [2021-11-07 07:36:25,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2021-11-07 07:36:25,522 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:25,522 INFO L513 BasicCegarLoop]: trace histogram [72, 72, 72, 71, 71, 71, 71, 71, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:25,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2021-11-07 07:36:25,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable77 [2021-11-07 07:36:25,731 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:36:25,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:25,731 INFO L85 PathProgramCache]: Analyzing trace with hash -703120281, now seen corresponding path program 71 times [2021-11-07 07:36:25,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:25,731 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951599702] [2021-11-07 07:36:25,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:25,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:25,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:31,224 INFO L134 CoverageAnalysis]: Checked inductivity of 20164 backedges. 0 proven. 20164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:31,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:31,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951599702] [2021-11-07 07:36:31,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951599702] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:31,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588751772] [2021-11-07 07:36:31,225 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:36:31,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:36:31,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:36:31,234 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:36:31,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-11-07 07:36:37,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 72 check-sat command(s) [2021-11-07 07:36:37,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:36:37,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 146 conjunts are in the unsatisfiable core [2021-11-07 07:36:37,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:36:39,390 INFO L134 CoverageAnalysis]: Checked inductivity of 20164 backedges. 0 proven. 20164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:39,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588751772] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:39,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:36:39,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [146, 146] total 146 [2021-11-07 07:36:39,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528786965] [2021-11-07 07:36:39,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2021-11-07 07:36:39,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:39,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2021-11-07 07:36:39,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5403, Invalid=16059, Unknown=0, NotChecked=0, Total=21462 [2021-11-07 07:36:39,395 INFO L87 Difference]: Start difference. First operand 578 states and 578 transitions. Second operand has 147 states, 146 states have (on average 3.458904109589041) internal successors, (505), 75 states have internal predecessors, (505), 72 states have call successors, (72), 72 states have call predecessors, (72), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:43,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:36:43,548 INFO L93 Difference]: Finished difference Result 591 states and 591 transitions. [2021-11-07 07:36:43,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2021-11-07 07:36:43,549 INFO L78 Accepts]: Start accepts. Automaton has has 147 states, 146 states have (on average 3.458904109589041) internal successors, (505), 75 states have internal predecessors, (505), 72 states have call successors, (72), 72 states have call predecessors, (72), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 577 [2021-11-07 07:36:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:36:43,552 INFO L225 Difference]: With dead ends: 591 [2021-11-07 07:36:43,552 INFO L226 Difference]: Without dead ends: 590 [2021-11-07 07:36:43,555 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 217 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7597 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=13359, Invalid=34383, Unknown=0, NotChecked=0, Total=47742 [2021-11-07 07:36:43,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2021-11-07 07:36:43,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 586. [2021-11-07 07:36:43,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 512 states have (on average 1.001953125) internal successors, (513), 512 states have internal predecessors, (513), 73 states have call successors, (73), 73 states have call predecessors, (73), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:43,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 586 transitions. [2021-11-07 07:36:43,716 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 586 transitions. Word has length 577 [2021-11-07 07:36:43,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:36:43,716 INFO L470 AbstractCegarLoop]: Abstraction has 586 states and 586 transitions. [2021-11-07 07:36:43,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 146 states have (on average 3.458904109589041) internal successors, (505), 75 states have internal predecessors, (505), 72 states have call successors, (72), 72 states have call predecessors, (72), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:36:43,717 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 586 transitions. [2021-11-07 07:36:43,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2021-11-07 07:36:43,719 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:36:43,720 INFO L513 BasicCegarLoop]: trace histogram [73, 73, 73, 72, 72, 72, 72, 72, 1, 1, 1, 1, 1, 1] [2021-11-07 07:36:43,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Ended with exit code 0 [2021-11-07 07:36:43,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 72 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-11-07 07:36:43,921 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:36:43,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:36:43,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1284764196, now seen corresponding path program 72 times [2021-11-07 07:36:43,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:36:43,921 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873222517] [2021-11-07 07:36:43,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:36:43,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:36:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:36:49,579 INFO L134 CoverageAnalysis]: Checked inductivity of 20736 backedges. 0 proven. 20736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:49,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:36:49,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873222517] [2021-11-07 07:36:49,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873222517] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:49,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952277863] [2021-11-07 07:36:49,579 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:36:49,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:36:49,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:36:49,580 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:36:49,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-11-07 07:36:56,429 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 73 check-sat command(s) [2021-11-07 07:36:56,429 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:36:56,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 148 conjunts are in the unsatisfiable core [2021-11-07 07:36:56,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:36:58,028 INFO L134 CoverageAnalysis]: Checked inductivity of 20736 backedges. 0 proven. 20736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:36:58,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952277863] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:36:58,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:36:58,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [148, 148] total 148 [2021-11-07 07:36:58,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614146749] [2021-11-07 07:36:58,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2021-11-07 07:36:58,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:36:58,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2021-11-07 07:36:58,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5551, Invalid=16501, Unknown=0, NotChecked=0, Total=22052 [2021-11-07 07:36:58,045 INFO L87 Difference]: Start difference. First operand 586 states and 586 transitions. Second operand has 149 states, 148 states have (on average 3.4594594594594597) internal successors, (512), 76 states have internal predecessors, (512), 73 states have call successors, (73), 73 states have call predecessors, (73), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:02,688 INFO L93 Difference]: Finished difference Result 599 states and 599 transitions. [2021-11-07 07:37:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 149 states. [2021-11-07 07:37:02,688 INFO L78 Accepts]: Start accepts. Automaton has has 149 states, 148 states have (on average 3.4594594594594597) internal successors, (512), 76 states have internal predecessors, (512), 73 states have call successors, (73), 73 states have call predecessors, (73), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 585 [2021-11-07 07:37:02,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:02,691 INFO L225 Difference]: With dead ends: 599 [2021-11-07 07:37:02,691 INFO L226 Difference]: Without dead ends: 598 [2021-11-07 07:37:02,695 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 805 GetRequests, 585 SyntacticMatches, 0 SemanticMatches, 220 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7812 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=13727, Invalid=35335, Unknown=0, NotChecked=0, Total=49062 [2021-11-07 07:37:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2021-11-07 07:37:02,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 594. [2021-11-07 07:37:02,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 519 states have (on average 1.001926782273603) internal successors, (520), 519 states have internal predecessors, (520), 74 states have call successors, (74), 74 states have call predecessors, (74), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:02,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 594 transitions. [2021-11-07 07:37:02,759 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 594 transitions. Word has length 585 [2021-11-07 07:37:02,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:02,760 INFO L470 AbstractCegarLoop]: Abstraction has 594 states and 594 transitions. [2021-11-07 07:37:02,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 148 states have (on average 3.4594594594594597) internal successors, (512), 76 states have internal predecessors, (512), 73 states have call successors, (73), 73 states have call predecessors, (73), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:02,761 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 594 transitions. [2021-11-07 07:37:02,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2021-11-07 07:37:02,766 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:02,766 INFO L513 BasicCegarLoop]: trace histogram [74, 74, 74, 73, 73, 73, 73, 73, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:02,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Ended with exit code 0 [2021-11-07 07:37:02,982 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-11-07 07:37:02,983 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:37:02,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:02,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1611766497, now seen corresponding path program 73 times [2021-11-07 07:37:02,983 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:02,983 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348841967] [2021-11-07 07:37:02,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:02,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 21316 backedges. 0 proven. 21316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:08,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:08,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348841967] [2021-11-07 07:37:08,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348841967] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:37:08,960 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456462036] [2021-11-07 07:37:08,960 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-07 07:37:08,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:37:08,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:37:08,961 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:37:08,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-11-07 07:37:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:15,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 150 conjunts are in the unsatisfiable core [2021-11-07 07:37:15,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:37:17,534 INFO L134 CoverageAnalysis]: Checked inductivity of 21316 backedges. 0 proven. 21316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:17,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456462036] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:37:17,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:37:17,535 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [150, 150] total 150 [2021-11-07 07:37:17,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928088975] [2021-11-07 07:37:17,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 151 states [2021-11-07 07:37:17,536 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:17,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2021-11-07 07:37:17,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5701, Invalid=16949, Unknown=0, NotChecked=0, Total=22650 [2021-11-07 07:37:17,540 INFO L87 Difference]: Start difference. First operand 594 states and 594 transitions. Second operand has 151 states, 150 states have (on average 3.46) internal successors, (519), 77 states have internal predecessors, (519), 74 states have call successors, (74), 74 states have call predecessors, (74), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:22,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:22,145 INFO L93 Difference]: Finished difference Result 607 states and 607 transitions. [2021-11-07 07:37:22,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2021-11-07 07:37:22,145 INFO L78 Accepts]: Start accepts. Automaton has has 151 states, 150 states have (on average 3.46) internal successors, (519), 77 states have internal predecessors, (519), 74 states have call successors, (74), 74 states have call predecessors, (74), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 593 [2021-11-07 07:37:22,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:22,149 INFO L225 Difference]: With dead ends: 607 [2021-11-07 07:37:22,149 INFO L226 Difference]: Without dead ends: 606 [2021-11-07 07:37:22,153 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 816 GetRequests, 593 SyntacticMatches, 0 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8030 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=14100, Invalid=36300, Unknown=0, NotChecked=0, Total=50400 [2021-11-07 07:37:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2021-11-07 07:37:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 602. [2021-11-07 07:37:22,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 602 states, 526 states have (on average 1.0019011406844107) internal successors, (527), 526 states have internal predecessors, (527), 75 states have call successors, (75), 75 states have call predecessors, (75), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:22,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 602 states and 602 transitions. [2021-11-07 07:37:22,220 INFO L78 Accepts]: Start accepts. Automaton has 602 states and 602 transitions. Word has length 593 [2021-11-07 07:37:22,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:22,220 INFO L470 AbstractCegarLoop]: Abstraction has 602 states and 602 transitions. [2021-11-07 07:37:22,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 151 states, 150 states have (on average 3.46) internal successors, (519), 77 states have internal predecessors, (519), 74 states have call successors, (74), 74 states have call predecessors, (74), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:22,220 INFO L276 IsEmpty]: Start isEmpty. Operand 602 states and 602 transitions. [2021-11-07 07:37:22,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 602 [2021-11-07 07:37:22,223 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:22,224 INFO L513 BasicCegarLoop]: trace histogram [75, 75, 75, 74, 74, 74, 74, 74, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:22,266 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Ended with exit code 0 [2021-11-07 07:37:22,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,74 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:37:22,424 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:37:22,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:22,424 INFO L85 PathProgramCache]: Analyzing trace with hash 99432094, now seen corresponding path program 74 times [2021-11-07 07:37:22,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:22,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414461720] [2021-11-07 07:37:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:22,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 21904 backedges. 0 proven. 21904 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:28,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:28,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414461720] [2021-11-07 07:37:28,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414461720] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:37:28,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943443651] [2021-11-07 07:37:28,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-07 07:37:28,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:37:28,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:37:28,835 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:37:28,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-11-07 07:37:35,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-07 07:37:35,983 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:37:35,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 152 conjunts are in the unsatisfiable core [2021-11-07 07:37:36,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:37:37,545 INFO L134 CoverageAnalysis]: Checked inductivity of 21904 backedges. 0 proven. 21904 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:37,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943443651] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:37:37,545 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:37:37,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [152, 152] total 152 [2021-11-07 07:37:37,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790547591] [2021-11-07 07:37:37,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 153 states [2021-11-07 07:37:37,547 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 153 interpolants. [2021-11-07 07:37:37,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5853, Invalid=17403, Unknown=0, NotChecked=0, Total=23256 [2021-11-07 07:37:37,549 INFO L87 Difference]: Start difference. First operand 602 states and 602 transitions. Second operand has 153 states, 152 states have (on average 3.460526315789474) internal successors, (526), 78 states have internal predecessors, (526), 75 states have call successors, (75), 75 states have call predecessors, (75), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:42,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:37:42,250 INFO L93 Difference]: Finished difference Result 615 states and 615 transitions. [2021-11-07 07:37:42,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2021-11-07 07:37:42,251 INFO L78 Accepts]: Start accepts. Automaton has has 153 states, 152 states have (on average 3.460526315789474) internal successors, (526), 78 states have internal predecessors, (526), 75 states have call successors, (75), 75 states have call predecessors, (75), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 601 [2021-11-07 07:37:42,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:37:42,253 INFO L225 Difference]: With dead ends: 615 [2021-11-07 07:37:42,253 INFO L226 Difference]: Without dead ends: 614 [2021-11-07 07:37:42,256 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 601 SyntacticMatches, 0 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8251 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=14478, Invalid=37278, Unknown=0, NotChecked=0, Total=51756 [2021-11-07 07:37:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2021-11-07 07:37:42,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 610. [2021-11-07 07:37:42,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 610 states, 533 states have (on average 1.00187617260788) internal successors, (534), 533 states have internal predecessors, (534), 76 states have call successors, (76), 76 states have call predecessors, (76), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:42,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 610 states to 610 states and 610 transitions. [2021-11-07 07:37:42,317 INFO L78 Accepts]: Start accepts. Automaton has 610 states and 610 transitions. Word has length 601 [2021-11-07 07:37:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:37:42,318 INFO L470 AbstractCegarLoop]: Abstraction has 610 states and 610 transitions. [2021-11-07 07:37:42,318 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 153 states, 152 states have (on average 3.460526315789474) internal successors, (526), 78 states have internal predecessors, (526), 75 states have call successors, (75), 75 states have call predecessors, (75), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:37:42,318 INFO L276 IsEmpty]: Start isEmpty. Operand 610 states and 610 transitions. [2021-11-07 07:37:42,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2021-11-07 07:37:42,322 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:37:42,322 INFO L513 BasicCegarLoop]: trace histogram [76, 76, 76, 75, 75, 75, 75, 75, 1, 1, 1, 1, 1, 1] [2021-11-07 07:37:42,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-11-07 07:37:42,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,75 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:37:42,522 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:37:42,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:37:42,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2038184613, now seen corresponding path program 75 times [2021-11-07 07:37:42,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:37:42,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581188893] [2021-11-07 07:37:42,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:37:42,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:37:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:37:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 22500 backedges. 0 proven. 22500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:48,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:37:48,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581188893] [2021-11-07 07:37:48,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581188893] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:37:48,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397344262] [2021-11-07 07:37:48,875 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-07 07:37:48,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:37:48,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:37:48,876 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:37:48,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-11-07 07:37:56,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2021-11-07 07:37:56,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:37:56,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1256 conjuncts, 154 conjunts are in the unsatisfiable core [2021-11-07 07:37:56,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:37:58,247 INFO L134 CoverageAnalysis]: Checked inductivity of 22500 backedges. 0 proven. 22500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:37:58,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397344262] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:37:58,248 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:37:58,248 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [154, 154] total 154 [2021-11-07 07:37:58,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331838159] [2021-11-07 07:37:58,249 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2021-11-07 07:37:58,249 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:37:58,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2021-11-07 07:37:58,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6007, Invalid=17863, Unknown=0, NotChecked=0, Total=23870 [2021-11-07 07:37:58,253 INFO L87 Difference]: Start difference. First operand 610 states and 610 transitions. Second operand has 155 states, 154 states have (on average 3.461038961038961) internal successors, (533), 79 states have internal predecessors, (533), 76 states have call successors, (76), 76 states have call predecessors, (76), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:03,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:03,269 INFO L93 Difference]: Finished difference Result 623 states and 623 transitions. [2021-11-07 07:38:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2021-11-07 07:38:03,269 INFO L78 Accepts]: Start accepts. Automaton has has 155 states, 154 states have (on average 3.461038961038961) internal successors, (533), 79 states have internal predecessors, (533), 76 states have call successors, (76), 76 states have call predecessors, (76), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 609 [2021-11-07 07:38:03,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:03,272 INFO L225 Difference]: With dead ends: 623 [2021-11-07 07:38:03,272 INFO L226 Difference]: Without dead ends: 622 [2021-11-07 07:38:03,275 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 838 GetRequests, 609 SyntacticMatches, 0 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8475 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=14861, Invalid=38269, Unknown=0, NotChecked=0, Total=53130 [2021-11-07 07:38:03,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 622 states. [2021-11-07 07:38:03,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 622 to 618. [2021-11-07 07:38:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 540 states have (on average 1.0018518518518518) internal successors, (541), 540 states have internal predecessors, (541), 77 states have call successors, (77), 77 states have call predecessors, (77), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:03,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 618 transitions. [2021-11-07 07:38:03,337 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 618 transitions. Word has length 609 [2021-11-07 07:38:03,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:03,338 INFO L470 AbstractCegarLoop]: Abstraction has 618 states and 618 transitions. [2021-11-07 07:38:03,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 154 states have (on average 3.461038961038961) internal successors, (533), 79 states have internal predecessors, (533), 76 states have call successors, (76), 76 states have call predecessors, (76), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:03,338 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 618 transitions. [2021-11-07 07:38:03,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2021-11-07 07:38:03,341 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:03,342 INFO L513 BasicCegarLoop]: trace histogram [77, 77, 77, 76, 76, 76, 76, 76, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:03,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2021-11-07 07:38:03,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82,76 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:38:03,545 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:38:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:03,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2100447000, now seen corresponding path program 76 times [2021-11-07 07:38:03,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:03,545 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866404142] [2021-11-07 07:38:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:03,546 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:03,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 23104 backedges. 0 proven. 23104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:10,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:10,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866404142] [2021-11-07 07:38:10,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866404142] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:38:10,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618478167] [2021-11-07 07:38:10,200 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-07 07:38:10,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:38:10,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:10,201 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:38:10,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-11-07 07:38:17,680 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-07 07:38:17,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:38:17,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 156 conjunts are in the unsatisfiable core [2021-11-07 07:38:17,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:38:19,230 INFO L134 CoverageAnalysis]: Checked inductivity of 23104 backedges. 0 proven. 23104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:19,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618478167] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:38:19,231 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:38:19,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [156, 156] total 156 [2021-11-07 07:38:19,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120177017] [2021-11-07 07:38:19,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 157 states [2021-11-07 07:38:19,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:19,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 157 interpolants. [2021-11-07 07:38:19,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6163, Invalid=18329, Unknown=0, NotChecked=0, Total=24492 [2021-11-07 07:38:19,235 INFO L87 Difference]: Start difference. First operand 618 states and 618 transitions. Second operand has 157 states, 156 states have (on average 3.4615384615384617) internal successors, (540), 80 states have internal predecessors, (540), 77 states have call successors, (77), 77 states have call predecessors, (77), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:24,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:24,379 INFO L93 Difference]: Finished difference Result 631 states and 631 transitions. [2021-11-07 07:38:24,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2021-11-07 07:38:24,379 INFO L78 Accepts]: Start accepts. Automaton has has 157 states, 156 states have (on average 3.4615384615384617) internal successors, (540), 80 states have internal predecessors, (540), 77 states have call successors, (77), 77 states have call predecessors, (77), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 617 [2021-11-07 07:38:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:24,382 INFO L225 Difference]: With dead ends: 631 [2021-11-07 07:38:24,383 INFO L226 Difference]: Without dead ends: 630 [2021-11-07 07:38:24,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 849 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 232 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8702 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=15249, Invalid=39273, Unknown=0, NotChecked=0, Total=54522 [2021-11-07 07:38:24,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-11-07 07:38:24,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 626. [2021-11-07 07:38:24,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 626 states, 547 states have (on average 1.0018281535648994) internal successors, (548), 547 states have internal predecessors, (548), 78 states have call successors, (78), 78 states have call predecessors, (78), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:24,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 626 states and 626 transitions. [2021-11-07 07:38:24,466 INFO L78 Accepts]: Start accepts. Automaton has 626 states and 626 transitions. Word has length 617 [2021-11-07 07:38:24,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:24,466 INFO L470 AbstractCegarLoop]: Abstraction has 626 states and 626 transitions. [2021-11-07 07:38:24,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 157 states, 156 states have (on average 3.4615384615384617) internal successors, (540), 80 states have internal predecessors, (540), 77 states have call successors, (77), 77 states have call predecessors, (77), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:24,467 INFO L276 IsEmpty]: Start isEmpty. Operand 626 states and 626 transitions. [2021-11-07 07:38:24,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2021-11-07 07:38:24,471 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:24,471 INFO L513 BasicCegarLoop]: trace histogram [78, 78, 78, 77, 77, 77, 77, 77, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:24,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Ended with exit code 0 [2021-11-07 07:38:24,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,77 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:38:24,672 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:38:24,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:24,672 INFO L85 PathProgramCache]: Analyzing trace with hash -665469995, now seen corresponding path program 77 times [2021-11-07 07:38:24,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:24,672 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878615662] [2021-11-07 07:38:24,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:24,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:24,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:32,042 INFO L134 CoverageAnalysis]: Checked inductivity of 23716 backedges. 0 proven. 23716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:32,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:32,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878615662] [2021-11-07 07:38:32,042 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878615662] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:38:32,042 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805341480] [2021-11-07 07:38:32,042 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-07 07:38:32,042 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:38:32,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:32,043 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:38:32,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-11-07 07:38:40,146 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2021-11-07 07:38:40,146 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-07 07:38:40,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 158 conjunts are in the unsatisfiable core [2021-11-07 07:38:40,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:38:41,850 INFO L134 CoverageAnalysis]: Checked inductivity of 23716 backedges. 0 proven. 23716 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:41,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805341480] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:38:41,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:38:41,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [158, 158] total 158 [2021-11-07 07:38:41,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642530806] [2021-11-07 07:38:41,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 159 states [2021-11-07 07:38:41,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:38:41,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 159 interpolants. [2021-11-07 07:38:41,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6321, Invalid=18801, Unknown=0, NotChecked=0, Total=25122 [2021-11-07 07:38:41,857 INFO L87 Difference]: Start difference. First operand 626 states and 626 transitions. Second operand has 159 states, 158 states have (on average 3.462025316455696) internal successors, (547), 81 states have internal predecessors, (547), 78 states have call successors, (78), 78 states have call predecessors, (78), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:46,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:38:46,965 INFO L93 Difference]: Finished difference Result 639 states and 639 transitions. [2021-11-07 07:38:46,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 159 states. [2021-11-07 07:38:46,965 INFO L78 Accepts]: Start accepts. Automaton has has 159 states, 158 states have (on average 3.462025316455696) internal successors, (547), 81 states have internal predecessors, (547), 78 states have call successors, (78), 78 states have call predecessors, (78), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 625 [2021-11-07 07:38:46,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:38:46,968 INFO L225 Difference]: With dead ends: 639 [2021-11-07 07:38:46,968 INFO L226 Difference]: Without dead ends: 638 [2021-11-07 07:38:46,971 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 860 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8932 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=15642, Invalid=40290, Unknown=0, NotChecked=0, Total=55932 [2021-11-07 07:38:46,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2021-11-07 07:38:47,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 634. [2021-11-07 07:38:47,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 554 states have (on average 1.0018050541516246) internal successors, (555), 554 states have internal predecessors, (555), 79 states have call successors, (79), 79 states have call predecessors, (79), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:47,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 634 transitions. [2021-11-07 07:38:47,070 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 634 transitions. Word has length 625 [2021-11-07 07:38:47,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:38:47,070 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 634 transitions. [2021-11-07 07:38:47,070 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 159 states, 158 states have (on average 3.462025316455696) internal successors, (547), 81 states have internal predecessors, (547), 78 states have call successors, (78), 78 states have call predecessors, (78), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:38:47,070 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 634 transitions. [2021-11-07 07:38:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 634 [2021-11-07 07:38:47,075 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:38:47,075 INFO L513 BasicCegarLoop]: trace histogram [79, 79, 79, 78, 78, 78, 78, 78, 1, 1, 1, 1, 1, 1] [2021-11-07 07:38:47,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2021-11-07 07:38:47,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable84 [2021-11-07 07:38:47,276 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-11-07 07:38:47,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:38:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash -649387118, now seen corresponding path program 78 times [2021-11-07 07:38:47,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:38:47,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291934102] [2021-11-07 07:38:47,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:38:47,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:38:47,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:38:54,371 INFO L134 CoverageAnalysis]: Checked inductivity of 24336 backedges. 0 proven. 24336 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:38:54,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:38:54,371 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291934102] [2021-11-07 07:38:54,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291934102] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:38:54,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946162016] [2021-11-07 07:38:54,372 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-11-07 07:38:54,372 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:38:54,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:38:54,373 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:38:54,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0d778fe-ca8c-4acd-b19e-be2405441ee8/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process