./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/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_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label19.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8aa577dc4c04bf53d7d29751ed362e9afcf94d1db611db106e7ed08797634e47 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:53:06,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:53:06,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:53:06,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:53:06,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:53:06,622 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:53:06,625 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:53:06,630 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:53:06,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:53:06,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:53:06,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:53:06,642 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:53:06,643 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:53:06,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:53:06,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:53:06,651 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:53:06,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:53:06,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:53:06,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:53:06,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:53:06,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:53:06,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:53:06,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:53:06,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:53:06,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:53:06,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:53:06,691 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:53:06,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:53:06,694 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:53:06,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:53:06,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:53:06,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:53:06,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:53:06,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:53:06,702 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:53:06,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:53:06,703 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:53:06,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:53:06,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:53:06,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:53:06,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:53:06,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:53:06,753 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:53:06,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:53:06,754 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:53:06,754 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:53:06,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:53:06,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:53:06,763 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:53:06,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:53:06,763 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:53:06,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:53:06,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:53:06,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:53:06,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:53:06,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:53:06,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:53:06,766 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:53:06,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:53:06,766 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:53:06,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:53:06,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:53:06,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:53:06,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:53:06,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:53:06,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:53:06,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:53:06,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:53:06,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:53:06,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:53:06,769 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:53:06,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:53:06,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:53:06,771 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:53:06,772 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_625ef156-0974-491f-998d-88cf8ed3543c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8aa577dc4c04bf53d7d29751ed362e9afcf94d1db611db106e7ed08797634e47 [2021-11-07 07:53:07,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:53:07,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:53:07,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:53:07,154 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:53:07,155 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:53:07,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/eca-rers2012/Problem11_label19.c [2021-11-07 07:53:07,247 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/data/3a93130e2/6fa99da57f8c40359171efd59952717a/FLAGaf9d21c87 [2021-11-07 07:53:07,886 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:53:07,886 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/sv-benchmarks/c/eca-rers2012/Problem11_label19.c [2021-11-07 07:53:07,908 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/data/3a93130e2/6fa99da57f8c40359171efd59952717a/FLAGaf9d21c87 [2021-11-07 07:53:08,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/data/3a93130e2/6fa99da57f8c40359171efd59952717a [2021-11-07 07:53:08,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:53:08,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:53:08,073 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:53:08,073 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:53:08,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:53:08,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:53:08" (1/1) ... [2021-11-07 07:53:08,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a591895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:08, skipping insertion in model container [2021-11-07 07:53:08,084 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:53:08" (1/1) ... [2021-11-07 07:53:08,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:53:08,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:53:08,571 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_625ef156-0974-491f-998d-88cf8ed3543c/sv-benchmarks/c/eca-rers2012/Problem11_label19.c[8142,8155] [2021-11-07 07:53:08,933 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:53:08,946 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:53:08,993 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_625ef156-0974-491f-998d-88cf8ed3543c/sv-benchmarks/c/eca-rers2012/Problem11_label19.c[8142,8155] [2021-11-07 07:53:09,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:53:09,143 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:53:09,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09 WrapperNode [2021-11-07 07:53:09,144 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:53:09,145 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:53:09,145 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:53:09,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:53:09,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:53:09,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:53:09,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:53:09,360 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:53:09,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,494 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,515 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:53:09,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:53:09,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:53:09,518 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:53:09,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (1/1) ... [2021-11-07 07:53:09,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:53:09,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:53:09,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:53:09,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:53:09,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:53:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:53:09,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:53:09,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:53:11,569 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:53:11,570 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-07 07:53:11,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:53:11 BoogieIcfgContainer [2021-11-07 07:53:11,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:53:11,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:53:11,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:53:11,580 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:53:11,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:53:08" (1/3) ... [2021-11-07 07:53:11,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7706a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:53:11, skipping insertion in model container [2021-11-07 07:53:11,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:53:09" (2/3) ... [2021-11-07 07:53:11,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e7706a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:53:11, skipping insertion in model container [2021-11-07 07:53:11,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:53:11" (3/3) ... [2021-11-07 07:53:11,584 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label19.c [2021-11-07 07:53:11,593 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:53:11,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:53:11,667 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:53:11,678 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=PETRI_NET, 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 07:53:11,678 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 07:53:11,716 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:11,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-07 07:53:11,725 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:11,725 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:11,726 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:11,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:11,731 INFO L85 PathProgramCache]: Analyzing trace with hash -2158734, now seen corresponding path program 1 times [2021-11-07 07:53:11,740 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:11,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593160921] [2021-11-07 07:53:11,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:11,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:12,068 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 07:53:12,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:12,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593160921] [2021-11-07 07:53:12,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593160921] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:12,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:12,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:53:12,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540386339] [2021-11-07 07:53:12,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:12,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:12,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:12,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:12,107 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:13,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:13,501 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2021-11-07 07:53:13,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:13,503 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-11-07 07:53:13,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:13,517 INFO L225 Difference]: With dead ends: 761 [2021-11-07 07:53:13,518 INFO L226 Difference]: Without dead ends: 413 [2021-11-07 07:53:13,522 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 07:53:13,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2021-11-07 07:53:13,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2021-11-07 07:53:13,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:13,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2021-11-07 07:53:13,590 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 56 [2021-11-07 07:53:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:13,591 INFO L470 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2021-11-07 07:53:13,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:13,591 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2021-11-07 07:53:13,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-11-07 07:53:13,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:13,598 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:13,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:53:13,598 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:13,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:13,600 INFO L85 PathProgramCache]: Analyzing trace with hash 145975082, now seen corresponding path program 1 times [2021-11-07 07:53:13,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:13,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970030477] [2021-11-07 07:53:13,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:13,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:13,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:13,847 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:53:13,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:13,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970030477] [2021-11-07 07:53:13,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970030477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:13,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:13,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:53:13,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910851740] [2021-11-07 07:53:13,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:13,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:13,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:13,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:13,852 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:14,902 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2021-11-07 07:53:14,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:14,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2021-11-07 07:53:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:14,911 INFO L225 Difference]: With dead ends: 1211 [2021-11-07 07:53:14,911 INFO L226 Difference]: Without dead ends: 800 [2021-11-07 07:53:14,914 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 07:53:14,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2021-11-07 07:53:14,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2021-11-07 07:53:14,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3756345177664975) internal successors, (1084), 788 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:14,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1084 transitions. [2021-11-07 07:53:14,963 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1084 transitions. Word has length 124 [2021-11-07 07:53:14,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:14,964 INFO L470 AbstractCegarLoop]: Abstraction has 789 states and 1084 transitions. [2021-11-07 07:53:14,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:14,975 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1084 transitions. [2021-11-07 07:53:14,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-07 07:53:14,982 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:14,982 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:14,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:53:14,983 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:14,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:14,991 INFO L85 PathProgramCache]: Analyzing trace with hash -87355732, now seen corresponding path program 1 times [2021-11-07 07:53:14,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:14,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4075150] [2021-11-07 07:53:14,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:14,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:15,167 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:53:15,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:15,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4075150] [2021-11-07 07:53:15,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4075150] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:15,173 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:15,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:53:15,174 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434930175] [2021-11-07 07:53:15,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:15,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:15,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:15,183 INFO L87 Difference]: Start difference. First operand 789 states and 1084 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:16,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:16,098 INFO L93 Difference]: Finished difference Result 1945 states and 2614 transitions. [2021-11-07 07:53:16,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:16,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-07 07:53:16,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:16,107 INFO L225 Difference]: With dead ends: 1945 [2021-11-07 07:53:16,108 INFO L226 Difference]: Without dead ends: 1158 [2021-11-07 07:53:16,109 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 07:53:16,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2021-11-07 07:53:16,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2021-11-07 07:53:16,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2716262975778547) internal successors, (1470), 1156 states have internal predecessors, (1470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:16,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1470 transitions. [2021-11-07 07:53:16,148 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1470 transitions. Word has length 125 [2021-11-07 07:53:16,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:16,149 INFO L470 AbstractCegarLoop]: Abstraction has 1157 states and 1470 transitions. [2021-11-07 07:53:16,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:16,149 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1470 transitions. [2021-11-07 07:53:16,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-11-07 07:53:16,154 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:16,154 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:16,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 07:53:16,155 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:16,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:16,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1822006727, now seen corresponding path program 1 times [2021-11-07 07:53:16,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:16,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109233666] [2021-11-07 07:53:16,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:16,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:16,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:16,413 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:53:16,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:16,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109233666] [2021-11-07 07:53:16,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109233666] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:16,418 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:16,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:16,419 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620329444] [2021-11-07 07:53:16,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:16,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:16,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:16,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:16,423 INFO L87 Difference]: Start difference. First operand 1157 states and 1470 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:17,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:17,363 INFO L93 Difference]: Finished difference Result 2519 states and 3352 transitions. [2021-11-07 07:53:17,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:17,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-11-07 07:53:17,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:17,374 INFO L225 Difference]: With dead ends: 2519 [2021-11-07 07:53:17,374 INFO L226 Difference]: Without dead ends: 1548 [2021-11-07 07:53:17,376 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2021-11-07 07:53:17,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1545. [2021-11-07 07:53:17,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.294041450777202) internal successors, (1998), 1544 states have internal predecessors, (1998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:17,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1998 transitions. [2021-11-07 07:53:17,417 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1998 transitions. Word has length 183 [2021-11-07 07:53:17,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:17,418 INFO L470 AbstractCegarLoop]: Abstraction has 1545 states and 1998 transitions. [2021-11-07 07:53:17,418 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:17,418 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1998 transitions. [2021-11-07 07:53:17,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-07 07:53:17,422 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:17,422 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:17,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-07 07:53:17,423 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:17,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:17,423 INFO L85 PathProgramCache]: Analyzing trace with hash -293129306, now seen corresponding path program 1 times [2021-11-07 07:53:17,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:17,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266146540] [2021-11-07 07:53:17,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:17,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:53:17,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:17,560 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266146540] [2021-11-07 07:53:17,560 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266146540] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:17,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:17,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:17,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130313357] [2021-11-07 07:53:17,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:17,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:17,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:17,563 INFO L87 Difference]: Start difference. First operand 1545 states and 1998 transitions. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:18,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:18,482 INFO L93 Difference]: Finished difference Result 3656 states and 4826 transitions. [2021-11-07 07:53:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:18,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 236 [2021-11-07 07:53:18,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:18,499 INFO L225 Difference]: With dead ends: 3656 [2021-11-07 07:53:18,500 INFO L226 Difference]: Without dead ends: 2297 [2021-11-07 07:53:18,502 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:18,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2297 states. [2021-11-07 07:53:18,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2297 to 2100. [2021-11-07 07:53:18,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 2099 states have (on average 1.2706050500238208) internal successors, (2667), 2099 states have internal predecessors, (2667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:18,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2667 transitions. [2021-11-07 07:53:18,588 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2667 transitions. Word has length 236 [2021-11-07 07:53:18,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:18,589 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2667 transitions. [2021-11-07 07:53:18,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:18,590 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2667 transitions. [2021-11-07 07:53:18,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2021-11-07 07:53:18,595 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:18,595 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:18,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-07 07:53:18,596 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:18,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:18,596 INFO L85 PathProgramCache]: Analyzing trace with hash -814689872, now seen corresponding path program 1 times [2021-11-07 07:53:18,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:18,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536097845] [2021-11-07 07:53:18,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:18,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:18,830 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 175 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:53:18,830 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:18,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536097845] [2021-11-07 07:53:18,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536097845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:18,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:18,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:53:18,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816049060] [2021-11-07 07:53:18,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:53:18,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:18,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:53:18,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:18,838 INFO L87 Difference]: Start difference. First operand 2100 states and 2667 transitions. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:20,593 INFO L93 Difference]: Finished difference Result 6988 states and 9014 transitions. [2021-11-07 07:53:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:53:20,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 237 [2021-11-07 07:53:20,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:20,632 INFO L225 Difference]: With dead ends: 6988 [2021-11-07 07:53:20,632 INFO L226 Difference]: Without dead ends: 4890 [2021-11-07 07:53:20,636 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:20,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4890 states. [2021-11-07 07:53:20,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4890 to 4690. [2021-11-07 07:53:20,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4690 states, 4689 states have (on average 1.2518660695244188) internal successors, (5870), 4689 states have internal predecessors, (5870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:20,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4690 states to 4690 states and 5870 transitions. [2021-11-07 07:53:20,768 INFO L78 Accepts]: Start accepts. Automaton has 4690 states and 5870 transitions. Word has length 237 [2021-11-07 07:53:20,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:20,769 INFO L470 AbstractCegarLoop]: Abstraction has 4690 states and 5870 transitions. [2021-11-07 07:53:20,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:20,770 INFO L276 IsEmpty]: Start isEmpty. Operand 4690 states and 5870 transitions. [2021-11-07 07:53:20,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-11-07 07:53:20,776 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:20,776 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:20,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-07 07:53:20,777 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:20,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:20,778 INFO L85 PathProgramCache]: Analyzing trace with hash 298488641, now seen corresponding path program 1 times [2021-11-07 07:53:20,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:20,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261109916] [2021-11-07 07:53:20,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:20,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:20,944 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-07 07:53:20,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:20,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261109916] [2021-11-07 07:53:20,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261109916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:20,945 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:20,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:20,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309955067] [2021-11-07 07:53:20,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:20,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:20,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:20,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:20,948 INFO L87 Difference]: Start difference. First operand 4690 states and 5870 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:22,080 INFO L93 Difference]: Finished difference Result 10496 states and 13349 transitions. [2021-11-07 07:53:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:22,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2021-11-07 07:53:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:22,116 INFO L225 Difference]: With dead ends: 10496 [2021-11-07 07:53:22,116 INFO L226 Difference]: Without dead ends: 6176 [2021-11-07 07:53:22,122 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:22,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6176 states. [2021-11-07 07:53:22,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6176 to 5978. [2021-11-07 07:53:22,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5978 states, 5977 states have (on average 1.2297139032959679) internal successors, (7350), 5977 states have internal predecessors, (7350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:22,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5978 states to 5978 states and 7350 transitions. [2021-11-07 07:53:22,278 INFO L78 Accepts]: Start accepts. Automaton has 5978 states and 7350 transitions. Word has length 238 [2021-11-07 07:53:22,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:22,279 INFO L470 AbstractCegarLoop]: Abstraction has 5978 states and 7350 transitions. [2021-11-07 07:53:22,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:22,279 INFO L276 IsEmpty]: Start isEmpty. Operand 5978 states and 7350 transitions. [2021-11-07 07:53:22,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-07 07:53:22,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:22,285 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:22,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-07 07:53:22,286 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:22,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:22,287 INFO L85 PathProgramCache]: Analyzing trace with hash -70460415, now seen corresponding path program 1 times [2021-11-07 07:53:22,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:22,288 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477140255] [2021-11-07 07:53:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:22,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:22,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:22,467 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-11-07 07:53:22,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:22,468 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477140255] [2021-11-07 07:53:22,468 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477140255] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:22,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:22,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:22,469 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912641110] [2021-11-07 07:53:22,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:22,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:22,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:22,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:22,471 INFO L87 Difference]: Start difference. First operand 5978 states and 7350 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:23,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:23,666 INFO L93 Difference]: Finished difference Result 14181 states and 17519 transitions. [2021-11-07 07:53:23,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:23,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2021-11-07 07:53:23,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:23,718 INFO L225 Difference]: With dead ends: 14181 [2021-11-07 07:53:23,718 INFO L226 Difference]: Without dead ends: 8573 [2021-11-07 07:53:23,726 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:23,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8573 states. [2021-11-07 07:53:23,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8573 to 8017. [2021-11-07 07:53:23,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8017 states, 8016 states have (on average 1.2169411177644711) internal successors, (9755), 8016 states have internal predecessors, (9755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:23,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8017 states to 8017 states and 9755 transitions. [2021-11-07 07:53:23,950 INFO L78 Accepts]: Start accepts. Automaton has 8017 states and 9755 transitions. Word has length 248 [2021-11-07 07:53:23,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:23,951 INFO L470 AbstractCegarLoop]: Abstraction has 8017 states and 9755 transitions. [2021-11-07 07:53:23,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:23,952 INFO L276 IsEmpty]: Start isEmpty. Operand 8017 states and 9755 transitions. [2021-11-07 07:53:23,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-07 07:53:23,960 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:23,960 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:23,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-07 07:53:23,961 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:23,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:23,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2090947407, now seen corresponding path program 1 times [2021-11-07 07:53:23,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:23,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726167037] [2021-11-07 07:53:23,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:23,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:24,107 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-11-07 07:53:24,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:24,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726167037] [2021-11-07 07:53:24,108 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726167037] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:24,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:24,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:24,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939486729] [2021-11-07 07:53:24,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:24,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:24,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:24,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:24,112 INFO L87 Difference]: Start difference. First operand 8017 states and 9755 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:25,190 INFO L93 Difference]: Finished difference Result 17345 states and 21233 transitions. [2021-11-07 07:53:25,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:25,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 258 [2021-11-07 07:53:25,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:25,227 INFO L225 Difference]: With dead ends: 17345 [2021-11-07 07:53:25,228 INFO L226 Difference]: Without dead ends: 9698 [2021-11-07 07:53:25,239 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:25,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9698 states. [2021-11-07 07:53:25,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9698 to 9304. [2021-11-07 07:53:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9304 states, 9303 states have (on average 1.2159518434913468) internal successors, (11312), 9303 states have internal predecessors, (11312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9304 states to 9304 states and 11312 transitions. [2021-11-07 07:53:25,433 INFO L78 Accepts]: Start accepts. Automaton has 9304 states and 11312 transitions. Word has length 258 [2021-11-07 07:53:25,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:25,434 INFO L470 AbstractCegarLoop]: Abstraction has 9304 states and 11312 transitions. [2021-11-07 07:53:25,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:25,435 INFO L276 IsEmpty]: Start isEmpty. Operand 9304 states and 11312 transitions. [2021-11-07 07:53:25,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-07 07:53:25,465 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:25,465 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:25,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-07 07:53:25,466 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:25,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:25,467 INFO L85 PathProgramCache]: Analyzing trace with hash 973039469, now seen corresponding path program 1 times [2021-11-07 07:53:25,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:25,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938837209] [2021-11-07 07:53:25,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:25,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:25,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-07 07:53:25,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:25,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938837209] [2021-11-07 07:53:25,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938837209] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:25,566 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:25,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:53:25,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435640591] [2021-11-07 07:53:25,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:25,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:25,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:25,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:25,568 INFO L87 Difference]: Start difference. First operand 9304 states and 11312 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:26,381 INFO L93 Difference]: Finished difference Result 18205 states and 22188 transitions. [2021-11-07 07:53:26,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:26,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 259 [2021-11-07 07:53:26,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:26,402 INFO L225 Difference]: With dead ends: 18205 [2021-11-07 07:53:26,402 INFO L226 Difference]: Without dead ends: 9271 [2021-11-07 07:53:26,413 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 07:53:26,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9271 states. [2021-11-07 07:53:26,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9271 to 9086. [2021-11-07 07:53:26,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9086 states, 9085 states have (on average 1.1512383048981838) internal successors, (10459), 9085 states have internal predecessors, (10459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9086 states to 9086 states and 10459 transitions. [2021-11-07 07:53:26,655 INFO L78 Accepts]: Start accepts. Automaton has 9086 states and 10459 transitions. Word has length 259 [2021-11-07 07:53:26,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:26,655 INFO L470 AbstractCegarLoop]: Abstraction has 9086 states and 10459 transitions. [2021-11-07 07:53:26,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 9086 states and 10459 transitions. [2021-11-07 07:53:26,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-07 07:53:26,666 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:26,667 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:26,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-07 07:53:26,668 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:26,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:26,669 INFO L85 PathProgramCache]: Analyzing trace with hash 585798969, now seen corresponding path program 1 times [2021-11-07 07:53:26,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:26,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375025945] [2021-11-07 07:53:26,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:26,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:26,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:26,828 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-07 07:53:26,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:26,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375025945] [2021-11-07 07:53:26,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375025945] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:26,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:26,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:26,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409926692] [2021-11-07 07:53:26,830 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:26,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:26,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:26,832 INFO L87 Difference]: Start difference. First operand 9086 states and 10459 transitions. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:27,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:27,903 INFO L93 Difference]: Finished difference Result 18358 states and 21126 transitions. [2021-11-07 07:53:27,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:27,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 289 [2021-11-07 07:53:27,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:27,923 INFO L225 Difference]: With dead ends: 18358 [2021-11-07 07:53:27,923 INFO L226 Difference]: Without dead ends: 9458 [2021-11-07 07:53:27,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:27,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9458 states. [2021-11-07 07:53:28,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9458 to 9453. [2021-11-07 07:53:28,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9453 states, 9452 states have (on average 1.1241007194244603) internal successors, (10625), 9452 states have internal predecessors, (10625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:28,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9453 states to 9453 states and 10625 transitions. [2021-11-07 07:53:28,084 INFO L78 Accepts]: Start accepts. Automaton has 9453 states and 10625 transitions. Word has length 289 [2021-11-07 07:53:28,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:28,084 INFO L470 AbstractCegarLoop]: Abstraction has 9453 states and 10625 transitions. [2021-11-07 07:53:28,085 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:28,085 INFO L276 IsEmpty]: Start isEmpty. Operand 9453 states and 10625 transitions. [2021-11-07 07:53:28,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2021-11-07 07:53:28,098 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:28,099 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:28,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-07 07:53:28,100 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:28,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:28,100 INFO L85 PathProgramCache]: Analyzing trace with hash 844810203, now seen corresponding path program 1 times [2021-11-07 07:53:28,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:28,101 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124160882] [2021-11-07 07:53:28,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:28,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:28,254 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-07 07:53:28,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:28,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124160882] [2021-11-07 07:53:28,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124160882] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:28,254 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:28,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:28,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241594872] [2021-11-07 07:53:28,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:28,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:28,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:28,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:28,257 INFO L87 Difference]: Start difference. First operand 9453 states and 10625 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:29,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:29,299 INFO L93 Difference]: Finished difference Result 21307 states and 24061 transitions. [2021-11-07 07:53:29,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:29,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 319 [2021-11-07 07:53:29,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:29,324 INFO L225 Difference]: With dead ends: 21307 [2021-11-07 07:53:29,324 INFO L226 Difference]: Without dead ends: 12224 [2021-11-07 07:53:29,336 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:29,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12224 states. [2021-11-07 07:53:29,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12224 to 12222. [2021-11-07 07:53:29,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12222 states, 12221 states have (on average 1.116111611161116) internal successors, (13640), 12221 states have internal predecessors, (13640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:29,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12222 states to 12222 states and 13640 transitions. [2021-11-07 07:53:29,553 INFO L78 Accepts]: Start accepts. Automaton has 12222 states and 13640 transitions. Word has length 319 [2021-11-07 07:53:29,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:29,555 INFO L470 AbstractCegarLoop]: Abstraction has 12222 states and 13640 transitions. [2021-11-07 07:53:29,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:29,555 INFO L276 IsEmpty]: Start isEmpty. Operand 12222 states and 13640 transitions. [2021-11-07 07:53:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2021-11-07 07:53:29,602 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:29,602 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:29,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-07 07:53:29,603 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:29,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:29,604 INFO L85 PathProgramCache]: Analyzing trace with hash -235094284, now seen corresponding path program 1 times [2021-11-07 07:53:29,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:29,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18510005] [2021-11-07 07:53:29,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:29,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:29,857 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 242 proven. 137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:53:29,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:29,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18510005] [2021-11-07 07:53:29,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18510005] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:53:29,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471061599] [2021-11-07 07:53:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:29,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:53:29,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:53:29,864 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:53:29,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-07 07:53:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:30,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 07:53:30,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:53:31,343 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-07 07:53:31,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471061599] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:31,344 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 07:53:31,344 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2021-11-07 07:53:31,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630474367] [2021-11-07 07:53:31,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:31,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:31,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:31,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:53:31,347 INFO L87 Difference]: Start difference. First operand 12222 states and 13640 transitions. Second operand has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:32,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:32,341 INFO L93 Difference]: Finished difference Result 25383 states and 28427 transitions. [2021-11-07 07:53:32,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:32,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 329 [2021-11-07 07:53:32,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:32,367 INFO L225 Difference]: With dead ends: 25383 [2021-11-07 07:53:32,367 INFO L226 Difference]: Without dead ends: 13531 [2021-11-07 07:53:32,381 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:53:32,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13531 states. [2021-11-07 07:53:32,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13531 to 13522. [2021-11-07 07:53:32,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13522 states, 13521 states have (on average 1.1178167295318393) internal successors, (15114), 13521 states have internal predecessors, (15114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:32,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13522 states to 13522 states and 15114 transitions. [2021-11-07 07:53:32,637 INFO L78 Accepts]: Start accepts. Automaton has 13522 states and 15114 transitions. Word has length 329 [2021-11-07 07:53:32,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:32,638 INFO L470 AbstractCegarLoop]: Abstraction has 13522 states and 15114 transitions. [2021-11-07 07:53:32,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.0) internal successors, (249), 3 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:32,638 INFO L276 IsEmpty]: Start isEmpty. Operand 13522 states and 15114 transitions. [2021-11-07 07:53:32,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2021-11-07 07:53:32,653 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:32,654 INFO L513 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:32,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:53:32,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-07 07:53:32,868 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:32,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:32,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2086914279, now seen corresponding path program 1 times [2021-11-07 07:53:32,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:32,869 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283676492] [2021-11-07 07:53:32,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:32,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:33,046 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-07 07:53:33,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:33,046 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283676492] [2021-11-07 07:53:33,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [283676492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:33,047 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:33,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:53:33,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860797913] [2021-11-07 07:53:33,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:33,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:33,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:33,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:33,050 INFO L87 Difference]: Start difference. First operand 13522 states and 15114 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:33,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:33,486 INFO L93 Difference]: Finished difference Result 26663 states and 29835 transitions. [2021-11-07 07:53:33,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:33,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 338 [2021-11-07 07:53:33,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:33,514 INFO L225 Difference]: With dead ends: 26663 [2021-11-07 07:53:33,514 INFO L226 Difference]: Without dead ends: 13511 [2021-11-07 07:53:33,522 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 07:53:33,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13511 states. [2021-11-07 07:53:33,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13511 to 13506. [2021-11-07 07:53:33,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13506 states, 13505 states have (on average 1.117067752684191) internal successors, (15086), 13505 states have internal predecessors, (15086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:33,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13506 states to 13506 states and 15086 transitions. [2021-11-07 07:53:33,804 INFO L78 Accepts]: Start accepts. Automaton has 13506 states and 15086 transitions. Word has length 338 [2021-11-07 07:53:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:33,805 INFO L470 AbstractCegarLoop]: Abstraction has 13506 states and 15086 transitions. [2021-11-07 07:53:33,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 2 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:33,805 INFO L276 IsEmpty]: Start isEmpty. Operand 13506 states and 15086 transitions. [2021-11-07 07:53:33,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-11-07 07:53:33,818 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:33,819 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:33,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-07 07:53:33,819 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:33,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:33,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1537666383, now seen corresponding path program 1 times [2021-11-07 07:53:33,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:33,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955000468] [2021-11-07 07:53:33,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:33,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:33,974 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 341 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-07 07:53:33,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:33,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955000468] [2021-11-07 07:53:33,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955000468] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:33,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:33,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:33,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466919881] [2021-11-07 07:53:33,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:53:33,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:33,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:53:33,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:33,985 INFO L87 Difference]: Start difference. First operand 13506 states and 15086 transitions. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:35,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:35,494 INFO L93 Difference]: Finished difference Result 28862 states and 32245 transitions. [2021-11-07 07:53:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:53:35,495 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2021-11-07 07:53:35,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:35,525 INFO L225 Difference]: With dead ends: 28862 [2021-11-07 07:53:35,525 INFO L226 Difference]: Without dead ends: 15726 [2021-11-07 07:53:35,535 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:35,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15726 states. [2021-11-07 07:53:35,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15726 to 15718. [2021-11-07 07:53:35,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15718 states, 15717 states have (on average 1.1105172742889864) internal successors, (17454), 15717 states have internal predecessors, (17454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:35,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15718 states to 15718 states and 17454 transitions. [2021-11-07 07:53:35,851 INFO L78 Accepts]: Start accepts. Automaton has 15718 states and 17454 transitions. Word has length 350 [2021-11-07 07:53:35,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:35,852 INFO L470 AbstractCegarLoop]: Abstraction has 15718 states and 17454 transitions. [2021-11-07 07:53:35,852 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:35,852 INFO L276 IsEmpty]: Start isEmpty. Operand 15718 states and 17454 transitions. [2021-11-07 07:53:35,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2021-11-07 07:53:35,875 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:35,875 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:35,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-07 07:53:35,876 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:35,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:35,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1164252215, now seen corresponding path program 1 times [2021-11-07 07:53:35,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:35,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912206612] [2021-11-07 07:53:35,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:35,877 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:35,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-07 07:53:36,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:36,096 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912206612] [2021-11-07 07:53:36,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912206612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:36,096 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:36,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:53:36,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646797240] [2021-11-07 07:53:36,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:53:36,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:36,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:53:36,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:36,099 INFO L87 Difference]: Start difference. First operand 15718 states and 17454 transitions. Second operand has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:37,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:37,598 INFO L93 Difference]: Finished difference Result 32359 states and 35959 transitions. [2021-11-07 07:53:37,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:53:37,599 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2021-11-07 07:53:37,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:37,634 INFO L225 Difference]: With dead ends: 32359 [2021-11-07 07:53:37,634 INFO L226 Difference]: Without dead ends: 17011 [2021-11-07 07:53:37,643 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:37,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17011 states. [2021-11-07 07:53:37,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17011 to 16270. [2021-11-07 07:53:37,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16270 states, 16269 states have (on average 1.108980269223677) internal successors, (18042), 16269 states have internal predecessors, (18042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:37,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16270 states to 16270 states and 18042 transitions. [2021-11-07 07:53:37,893 INFO L78 Accepts]: Start accepts. Automaton has 16270 states and 18042 transitions. Word has length 363 [2021-11-07 07:53:37,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:37,894 INFO L470 AbstractCegarLoop]: Abstraction has 16270 states and 18042 transitions. [2021-11-07 07:53:37,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.25) internal successors, (253), 4 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:37,894 INFO L276 IsEmpty]: Start isEmpty. Operand 16270 states and 18042 transitions. [2021-11-07 07:53:37,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-11-07 07:53:37,919 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:37,920 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:37,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-07 07:53:37,920 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:37,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1462969262, now seen corresponding path program 1 times [2021-11-07 07:53:37,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:37,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778076238] [2021-11-07 07:53:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:37,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:38,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 359 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-11-07 07:53:38,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:38,298 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778076238] [2021-11-07 07:53:38,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778076238] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:38,298 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:38,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:38,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858570049] [2021-11-07 07:53:38,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:53:38,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:38,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:53:38,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:38,301 INFO L87 Difference]: Start difference. First operand 16270 states and 18042 transitions. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:39,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:39,882 INFO L93 Difference]: Finished difference Result 43057 states and 47697 transitions. [2021-11-07 07:53:39,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:53:39,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2021-11-07 07:53:39,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:40,026 INFO L225 Difference]: With dead ends: 43057 [2021-11-07 07:53:40,027 INFO L226 Difference]: Without dead ends: 26233 [2021-11-07 07:53:40,033 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:40,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26233 states. [2021-11-07 07:53:40,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26233 to 24940. [2021-11-07 07:53:40,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24940 states, 24939 states have (on average 1.1017282168491118) internal successors, (27476), 24939 states have internal predecessors, (27476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:40,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24940 states to 24940 states and 27476 transitions. [2021-11-07 07:53:40,501 INFO L78 Accepts]: Start accepts. Automaton has 24940 states and 27476 transitions. Word has length 377 [2021-11-07 07:53:40,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:40,502 INFO L470 AbstractCegarLoop]: Abstraction has 24940 states and 27476 transitions. [2021-11-07 07:53:40,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 3 states have internal predecessors, (297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 24940 states and 27476 transitions. [2021-11-07 07:53:40,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2021-11-07 07:53:40,525 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:40,526 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:40,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-07 07:53:40,527 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:40,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:40,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1797707710, now seen corresponding path program 1 times [2021-11-07 07:53:40,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:40,528 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688034881] [2021-11-07 07:53:40,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:40,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2021-11-07 07:53:40,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:40,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688034881] [2021-11-07 07:53:40,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688034881] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:40,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:40,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:40,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114034640] [2021-11-07 07:53:40,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:40,733 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:40,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:40,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:40,734 INFO L87 Difference]: Start difference. First operand 24940 states and 27476 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:41,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:41,592 INFO L93 Difference]: Finished difference Result 28806 states and 31708 transitions. [2021-11-07 07:53:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:41,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 408 [2021-11-07 07:53:41,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:41,626 INFO L225 Difference]: With dead ends: 28806 [2021-11-07 07:53:41,626 INFO L226 Difference]: Without dead ends: 28804 [2021-11-07 07:53:41,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:41,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28804 states. [2021-11-07 07:53:42,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28804 to 25308. [2021-11-07 07:53:42,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25308 states, 25307 states have (on average 1.1021851661595605) internal successors, (27893), 25307 states have internal predecessors, (27893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:42,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25308 states to 25308 states and 27893 transitions. [2021-11-07 07:53:42,122 INFO L78 Accepts]: Start accepts. Automaton has 25308 states and 27893 transitions. Word has length 408 [2021-11-07 07:53:42,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:42,123 INFO L470 AbstractCegarLoop]: Abstraction has 25308 states and 27893 transitions. [2021-11-07 07:53:42,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:42,123 INFO L276 IsEmpty]: Start isEmpty. Operand 25308 states and 27893 transitions. [2021-11-07 07:53:42,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2021-11-07 07:53:42,142 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:42,142 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:42,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-07 07:53:42,143 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:42,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1512001580, now seen corresponding path program 1 times [2021-11-07 07:53:42,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:42,144 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10457522] [2021-11-07 07:53:42,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:42,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:42,289 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 458 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-07 07:53:42,289 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:42,289 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10457522] [2021-11-07 07:53:42,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10457522] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:42,289 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:42,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:42,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063052682] [2021-11-07 07:53:42,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:42,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:42,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:42,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:42,292 INFO L87 Difference]: Start difference. First operand 25308 states and 27893 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:43,357 INFO L93 Difference]: Finished difference Result 54667 states and 60218 transitions. [2021-11-07 07:53:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:43,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 419 [2021-11-07 07:53:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:43,403 INFO L225 Difference]: With dead ends: 54667 [2021-11-07 07:53:43,403 INFO L226 Difference]: Without dead ends: 29913 [2021-11-07 07:53:43,419 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:43,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29913 states. [2021-11-07 07:53:43,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29913 to 29724. [2021-11-07 07:53:43,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29724 states, 29723 states have (on average 1.0919489957272146) internal successors, (32456), 29723 states have internal predecessors, (32456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29724 states to 29724 states and 32456 transitions. [2021-11-07 07:53:43,917 INFO L78 Accepts]: Start accepts. Automaton has 29724 states and 32456 transitions. Word has length 419 [2021-11-07 07:53:43,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:43,917 INFO L470 AbstractCegarLoop]: Abstraction has 29724 states and 32456 transitions. [2021-11-07 07:53:43,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 29724 states and 32456 transitions. [2021-11-07 07:53:43,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2021-11-07 07:53:43,931 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:43,931 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:43,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-07 07:53:43,932 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:43,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:43,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1594395410, now seen corresponding path program 1 times [2021-11-07 07:53:43,932 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:43,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546920997] [2021-11-07 07:53:43,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:43,933 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:44,138 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 627 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-07 07:53:44,138 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:44,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546920997] [2021-11-07 07:53:44,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546920997] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:44,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:44,139 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:53:44,139 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541452672] [2021-11-07 07:53:44,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:53:44,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:44,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:53:44,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:44,141 INFO L87 Difference]: Start difference. First operand 29724 states and 32456 transitions. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:45,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:45,621 INFO L93 Difference]: Finished difference Result 63687 states and 69564 transitions. [2021-11-07 07:53:45,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:53:45,630 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 427 [2021-11-07 07:53:45,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:45,670 INFO L225 Difference]: With dead ends: 63687 [2021-11-07 07:53:45,670 INFO L226 Difference]: Without dead ends: 34701 [2021-11-07 07:53:45,687 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34701 states. [2021-11-07 07:53:46,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34701 to 30831. [2021-11-07 07:53:46,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30831 states, 30830 states have (on average 1.0880960103795005) internal successors, (33546), 30830 states have internal predecessors, (33546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:46,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30831 states to 30831 states and 33546 transitions. [2021-11-07 07:53:46,237 INFO L78 Accepts]: Start accepts. Automaton has 30831 states and 33546 transitions. Word has length 427 [2021-11-07 07:53:46,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:46,237 INFO L470 AbstractCegarLoop]: Abstraction has 30831 states and 33546 transitions. [2021-11-07 07:53:46,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 4 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:46,238 INFO L276 IsEmpty]: Start isEmpty. Operand 30831 states and 33546 transitions. [2021-11-07 07:53:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-11-07 07:53:46,247 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:46,248 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:46,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-07 07:53:46,249 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:46,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:46,249 INFO L85 PathProgramCache]: Analyzing trace with hash 974136964, now seen corresponding path program 1 times [2021-11-07 07:53:46,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:46,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117257098] [2021-11-07 07:53:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:46,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:46,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 249 proven. 191 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:53:46,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:46,480 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117257098] [2021-11-07 07:53:46,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117257098] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:53:46,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621250308] [2021-11-07 07:53:46,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:46,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:53:46,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:53:46,483 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:53:46,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-07 07:53:46,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:46,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:53:46,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:53:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 230 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:53:49,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621250308] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:53:49,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:53:49,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-11-07 07:53:49,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242057476] [2021-11-07 07:53:49,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-07 07:53:49,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:49,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-07 07:53:49,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-11-07 07:53:49,933 INFO L87 Difference]: Start difference. First operand 30831 states and 33546 transitions. Second operand has 9 states, 9 states have (on average 95.44444444444444) internal successors, (859), 8 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:54,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:54,782 INFO L93 Difference]: Finished difference Result 75853 states and 82504 transitions. [2021-11-07 07:53:54,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-07 07:53:54,783 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 95.44444444444444) internal successors, (859), 8 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2021-11-07 07:53:54,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:54,821 INFO L225 Difference]: With dead ends: 75853 [2021-11-07 07:53:54,821 INFO L226 Difference]: Without dead ends: 46128 [2021-11-07 07:53:54,835 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 427 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:53:54,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46128 states. [2021-11-07 07:53:55,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46128 to 38011. [2021-11-07 07:53:55,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38011 states, 38010 states have (on average 1.083372796632465) internal successors, (41179), 38010 states have internal predecessors, (41179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:55,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38011 states to 38011 states and 41179 transitions. [2021-11-07 07:53:55,388 INFO L78 Accepts]: Start accepts. Automaton has 38011 states and 41179 transitions. Word has length 430 [2021-11-07 07:53:55,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:55,389 INFO L470 AbstractCegarLoop]: Abstraction has 38011 states and 41179 transitions. [2021-11-07 07:53:55,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 95.44444444444444) internal successors, (859), 8 states have internal predecessors, (859), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:55,389 INFO L276 IsEmpty]: Start isEmpty. Operand 38011 states and 41179 transitions. [2021-11-07 07:53:55,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-11-07 07:53:55,496 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:55,496 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:55,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:53:55,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:53:55,711 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:55,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:55,712 INFO L85 PathProgramCache]: Analyzing trace with hash -742651351, now seen corresponding path program 1 times [2021-11-07 07:53:55,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:55,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508343217] [2021-11-07 07:53:55,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:55,712 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:55,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:55,904 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 349 trivial. 0 not checked. [2021-11-07 07:53:55,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:55,905 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508343217] [2021-11-07 07:53:55,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508343217] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:55,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:55,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:55,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932963208] [2021-11-07 07:53:55,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:55,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:55,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:55,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:55,909 INFO L87 Difference]: Start difference. First operand 38011 states and 41179 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:56,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:56,749 INFO L93 Difference]: Finished difference Result 42797 states and 46304 transitions. [2021-11-07 07:53:56,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:56,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 444 [2021-11-07 07:53:56,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:56,790 INFO L225 Difference]: With dead ends: 42797 [2021-11-07 07:53:56,790 INFO L226 Difference]: Without dead ends: 42795 [2021-11-07 07:53:56,798 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:56,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42795 states. [2021-11-07 07:53:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42795 to 37643. [2021-11-07 07:53:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37643 states, 37642 states have (on average 1.0838159502683173) internal successors, (40797), 37642 states have internal predecessors, (40797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:57,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37643 states to 37643 states and 40797 transitions. [2021-11-07 07:53:57,353 INFO L78 Accepts]: Start accepts. Automaton has 37643 states and 40797 transitions. Word has length 444 [2021-11-07 07:53:57,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:57,354 INFO L470 AbstractCegarLoop]: Abstraction has 37643 states and 40797 transitions. [2021-11-07 07:53:57,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:57,354 INFO L276 IsEmpty]: Start isEmpty. Operand 37643 states and 40797 transitions. [2021-11-07 07:53:57,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2021-11-07 07:53:57,381 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:57,382 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:57,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-07 07:53:57,382 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:57,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:57,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1973495715, now seen corresponding path program 1 times [2021-11-07 07:53:57,383 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:57,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440481592] [2021-11-07 07:53:57,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:57,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:57,589 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 623 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2021-11-07 07:53:57,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:57,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440481592] [2021-11-07 07:53:57,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440481592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:57,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:57,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-07 07:53:57,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58400227] [2021-11-07 07:53:57,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 07:53:57,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:57,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 07:53:57,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 07:53:57,595 INFO L87 Difference]: Start difference. First operand 37643 states and 40797 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:58,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:53:58,538 INFO L93 Difference]: Finished difference Result 73073 states and 79275 transitions. [2021-11-07 07:53:58,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 07:53:58,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 473 [2021-11-07 07:53:58,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:53:58,577 INFO L225 Difference]: With dead ends: 73073 [2021-11-07 07:53:58,577 INFO L226 Difference]: Without dead ends: 38932 [2021-11-07 07:53:58,596 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 07:53:58,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38932 states. [2021-11-07 07:53:59,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38932 to 37459. [2021-11-07 07:53:59,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37459 states, 37458 states have (on average 1.0835869507181377) internal successors, (40589), 37458 states have internal predecessors, (40589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:59,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37459 states to 37459 states and 40589 transitions. [2021-11-07 07:53:59,139 INFO L78 Accepts]: Start accepts. Automaton has 37459 states and 40589 transitions. Word has length 473 [2021-11-07 07:53:59,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:53:59,139 INFO L470 AbstractCegarLoop]: Abstraction has 37459 states and 40589 transitions. [2021-11-07 07:53:59,139 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:53:59,139 INFO L276 IsEmpty]: Start isEmpty. Operand 37459 states and 40589 transitions. [2021-11-07 07:53:59,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 490 [2021-11-07 07:53:59,163 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:53:59,164 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:53:59,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-07 07:53:59,164 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:53:59,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:53:59,165 INFO L85 PathProgramCache]: Analyzing trace with hash 2025307201, now seen corresponding path program 1 times [2021-11-07 07:53:59,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:53:59,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150879622] [2021-11-07 07:53:59,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:53:59,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:53:59,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:53:59,394 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 626 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-07 07:53:59,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:53:59,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150879622] [2021-11-07 07:53:59,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150879622] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:53:59,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:53:59,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 07:53:59,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723185493] [2021-11-07 07:53:59,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:53:59,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:53:59,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:53:59,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:53:59,398 INFO L87 Difference]: Start difference. First operand 37459 states and 40589 transitions. Second operand has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:00,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:54:00,484 INFO L93 Difference]: Finished difference Result 71420 states and 77480 transitions. [2021-11-07 07:54:00,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:54:00,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 489 [2021-11-07 07:54:00,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:54:00,518 INFO L225 Difference]: With dead ends: 71420 [2021-11-07 07:54:00,518 INFO L226 Difference]: Without dead ends: 37463 [2021-11-07 07:54:00,533 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 07:54:00,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37463 states. [2021-11-07 07:54:00,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37463 to 37459. [2021-11-07 07:54:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37459 states, 37458 states have (on average 1.0833199850499227) internal successors, (40579), 37458 states have internal predecessors, (40579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:01,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37459 states to 37459 states and 40579 transitions. [2021-11-07 07:54:01,034 INFO L78 Accepts]: Start accepts. Automaton has 37459 states and 40579 transitions. Word has length 489 [2021-11-07 07:54:01,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:54:01,035 INFO L470 AbstractCegarLoop]: Abstraction has 37459 states and 40579 transitions. [2021-11-07 07:54:01,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 91.5) internal successors, (366), 4 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:01,035 INFO L276 IsEmpty]: Start isEmpty. Operand 37459 states and 40579 transitions. [2021-11-07 07:54:01,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-11-07 07:54:01,062 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:54:01,062 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:54:01,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-07 07:54:01,063 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:54:01,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:54:01,063 INFO L85 PathProgramCache]: Analyzing trace with hash 822179319, now seen corresponding path program 1 times [2021-11-07 07:54:01,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:54:01,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087601680] [2021-11-07 07:54:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:01,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:54:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:01,338 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 540 proven. 64 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2021-11-07 07:54:01,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:54:01,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087601680] [2021-11-07 07:54:01,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087601680] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:54:01,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684475171] [2021-11-07 07:54:01,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:01,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:54:01,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:54:01,343 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:54:01,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-07 07:54:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:01,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 07:54:01,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:54:03,302 INFO L134 CoverageAnalysis]: Checked inductivity of 782 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2021-11-07 07:54:03,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684475171] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:54:03,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 07:54:03,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-11-07 07:54:03,303 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110891586] [2021-11-07 07:54:03,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:54:03,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:54:03,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:54:03,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:54:03,305 INFO L87 Difference]: Start difference. First operand 37459 states and 40579 transitions. Second operand has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:54:04,437 INFO L93 Difference]: Finished difference Result 71428 states and 77471 transitions. [2021-11-07 07:54:04,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:54:04,438 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 505 [2021-11-07 07:54:04,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:54:04,493 INFO L225 Difference]: With dead ends: 71428 [2021-11-07 07:54:04,493 INFO L226 Difference]: Without dead ends: 37471 [2021-11-07 07:54:04,516 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:54:04,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37471 states. [2021-11-07 07:54:04,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37471 to 36719. [2021-11-07 07:54:04,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36719 states, 36718 states have (on average 1.0823301922762678) internal successors, (39741), 36718 states have internal predecessors, (39741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:04,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36719 states to 36719 states and 39741 transitions. [2021-11-07 07:54:04,995 INFO L78 Accepts]: Start accepts. Automaton has 36719 states and 39741 transitions. Word has length 505 [2021-11-07 07:54:04,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:54:04,996 INFO L470 AbstractCegarLoop]: Abstraction has 36719 states and 39741 transitions. [2021-11-07 07:54:04,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 95.5) internal successors, (382), 4 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:04,996 INFO L276 IsEmpty]: Start isEmpty. Operand 36719 states and 39741 transitions. [2021-11-07 07:54:05,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-11-07 07:54:05,013 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:54:05,014 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:54:05,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-07 07:54:05,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:54:05,219 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:54:05,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:54:05,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1644491105, now seen corresponding path program 1 times [2021-11-07 07:54:05,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:54:05,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517410093] [2021-11-07 07:54:05,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:05,220 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:54:05,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:05,571 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 464 proven. 222 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-07 07:54:05,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:54:05,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517410093] [2021-11-07 07:54:05,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517410093] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:54:05,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [820086033] [2021-11-07 07:54:05,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:05,573 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:54:05,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:54:05,583 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:54:05,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-07 07:54:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:06,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-07 07:54:06,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:54:09,720 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 464 proven. 222 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-07 07:54:09,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [820086033] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:54:09,721 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:54:09,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-11-07 07:54:09,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577577302] [2021-11-07 07:54:09,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:54:09,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:54:09,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:54:09,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:54:09,724 INFO L87 Difference]: Start difference. First operand 36719 states and 39741 transitions. Second operand has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:12,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:54:12,575 INFO L93 Difference]: Finished difference Result 76187 states and 82314 transitions. [2021-11-07 07:54:12,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-07 07:54:12,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 505 [2021-11-07 07:54:12,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:54:12,615 INFO L225 Difference]: With dead ends: 76187 [2021-11-07 07:54:12,615 INFO L226 Difference]: Without dead ends: 39838 [2021-11-07 07:54:12,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 504 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:54:12,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39838 states. [2021-11-07 07:54:13,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39838 to 32453. [2021-11-07 07:54:13,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32453 states, 32452 states have (on average 1.0762356711450758) internal successors, (34926), 32452 states have internal predecessors, (34926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32453 states to 32453 states and 34926 transitions. [2021-11-07 07:54:13,131 INFO L78 Accepts]: Start accepts. Automaton has 32453 states and 34926 transitions. Word has length 505 [2021-11-07 07:54:13,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:54:13,132 INFO L470 AbstractCegarLoop]: Abstraction has 32453 states and 34926 transitions. [2021-11-07 07:54:13,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 64.57142857142857) internal successors, (452), 6 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:13,132 INFO L276 IsEmpty]: Start isEmpty. Operand 32453 states and 34926 transitions. [2021-11-07 07:54:13,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2021-11-07 07:54:13,154 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:54:13,154 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:54:13,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-07 07:54:13,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-11-07 07:54:13,355 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:54:13,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:54:13,355 INFO L85 PathProgramCache]: Analyzing trace with hash -1592139152, now seen corresponding path program 1 times [2021-11-07 07:54:13,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:54:13,356 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643328323] [2021-11-07 07:54:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:13,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:54:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:13,642 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 410 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-07 07:54:13,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:54:13,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643328323] [2021-11-07 07:54:13,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643328323] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:54:13,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412899659] [2021-11-07 07:54:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:13,643 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:54:13,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:54:13,651 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:54:13,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-07 07:54:14,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:14,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 07:54:14,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:54:17,928 INFO L134 CoverageAnalysis]: Checked inductivity of 766 backedges. 356 proven. 260 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-07 07:54:17,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412899659] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:54:17,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:54:17,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-11-07 07:54:17,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514505395] [2021-11-07 07:54:17,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 07:54:17,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:54:17,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 07:54:17,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:54:17,931 INFO L87 Difference]: Start difference. First operand 32453 states and 34926 transitions. Second operand has 7 states, 7 states have (on average 66.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:21,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:54:21,491 INFO L93 Difference]: Finished difference Result 79652 states and 85859 transitions. [2021-11-07 07:54:21,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:54:21,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 66.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 541 [2021-11-07 07:54:21,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:54:21,545 INFO L225 Difference]: With dead ends: 79652 [2021-11-07 07:54:21,546 INFO L226 Difference]: Without dead ends: 48859 [2021-11-07 07:54:21,563 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 539 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:54:21,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48859 states. [2021-11-07 07:54:21,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48859 to 38165. [2021-11-07 07:54:21,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38165 states, 38164 states have (on average 1.0768525311812178) internal successors, (41097), 38164 states have internal predecessors, (41097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:22,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38165 states to 38165 states and 41097 transitions. [2021-11-07 07:54:22,029 INFO L78 Accepts]: Start accepts. Automaton has 38165 states and 41097 transitions. Word has length 541 [2021-11-07 07:54:22,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:54:22,030 INFO L470 AbstractCegarLoop]: Abstraction has 38165 states and 41097 transitions. [2021-11-07 07:54:22,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 66.0) internal successors, (462), 6 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 38165 states and 41097 transitions. [2021-11-07 07:54:22,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2021-11-07 07:54:22,046 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:54:22,047 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:54:22,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-07 07:54:22,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-11-07 07:54:22,248 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:54:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:54:22,248 INFO L85 PathProgramCache]: Analyzing trace with hash 79502953, now seen corresponding path program 1 times [2021-11-07 07:54:22,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:54:22,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201402591] [2021-11-07 07:54:22,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:22,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:54:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:22,524 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 428 proven. 206 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2021-11-07 07:54:22,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:54:22,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201402591] [2021-11-07 07:54:22,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201402591] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:54:22,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425911778] [2021-11-07 07:54:22,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:22,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:54:22,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:54:22,527 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:54:22,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-07 07:54:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:23,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-07 07:54:23,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:54:25,778 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 367 proven. 54 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2021-11-07 07:54:25,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425911778] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:54:25,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-07 07:54:25,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2021-11-07 07:54:25,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943237262] [2021-11-07 07:54:25,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 07:54:25,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:54:25,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 07:54:25,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-07 07:54:25,781 INFO L87 Difference]: Start difference. First operand 38165 states and 41097 transitions. Second operand has 8 states, 8 states have (on average 87.375) internal successors, (699), 8 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:30,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:54:30,098 INFO L93 Difference]: Finished difference Result 92172 states and 99177 transitions. [2021-11-07 07:54:30,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-07 07:54:30,098 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 87.375) internal successors, (699), 8 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 552 [2021-11-07 07:54:30,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:54:30,159 INFO L225 Difference]: With dead ends: 92172 [2021-11-07 07:54:30,159 INFO L226 Difference]: Without dead ends: 57141 [2021-11-07 07:54:30,180 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 566 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=93, Unknown=0, NotChecked=0, Total=156 [2021-11-07 07:54:30,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57141 states. [2021-11-07 07:54:30,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57141 to 43507. [2021-11-07 07:54:30,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43507 states, 43506 states have (on average 1.0774375948145083) internal successors, (46875), 43506 states have internal predecessors, (46875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43507 states to 43507 states and 46875 transitions. [2021-11-07 07:54:30,798 INFO L78 Accepts]: Start accepts. Automaton has 43507 states and 46875 transitions. Word has length 552 [2021-11-07 07:54:30,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:54:30,799 INFO L470 AbstractCegarLoop]: Abstraction has 43507 states and 46875 transitions. [2021-11-07 07:54:30,799 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 87.375) internal successors, (699), 8 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:30,799 INFO L276 IsEmpty]: Start isEmpty. Operand 43507 states and 46875 transitions. [2021-11-07 07:54:30,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2021-11-07 07:54:30,827 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:54:30,828 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:54:30,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-07 07:54:31,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-07 07:54:31,029 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:54:31,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:54:31,029 INFO L85 PathProgramCache]: Analyzing trace with hash -2146043742, now seen corresponding path program 1 times [2021-11-07 07:54:31,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:54:31,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780883916] [2021-11-07 07:54:31,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:31,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:54:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 914 proven. 64 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-11-07 07:54:31,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:54:31,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780883916] [2021-11-07 07:54:31,413 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780883916] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-07 07:54:31,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225275570] [2021-11-07 07:54:31,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:54:31,414 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-07 07:54:31,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:54:31,415 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-07 07:54:31,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-07 07:54:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:54:32,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 07:54:32,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:54:34,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 1036 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2021-11-07 07:54:34,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225275570] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:54:34,657 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-11-07 07:54:34,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2021-11-07 07:54:34,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685279303] [2021-11-07 07:54:34,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 07:54:34,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:54:34,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 07:54:34,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:54:34,660 INFO L87 Difference]: Start difference. First operand 43507 states and 46875 transitions. Second operand has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:35,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:54:35,888 INFO L93 Difference]: Finished difference Result 82584 states and 89034 transitions. [2021-11-07 07:54:35,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 07:54:35,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 638 [2021-11-07 07:54:35,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:54:35,889 INFO L225 Difference]: With dead ends: 82584 [2021-11-07 07:54:35,889 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 07:54:35,907 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 641 GetRequests, 636 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-07 07:54:35,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 07:54:35,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 07:54:35,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:35,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 07:54:35,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 638 [2021-11-07 07:54:35,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:54:35,909 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:54:35,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 99.25) internal successors, (397), 4 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:54:35,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 07:54:35,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 07:54:35,911 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:54:35,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-07 07:54:36,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-07 07:54:36,114 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 07:54:36,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:54:40,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:54:43,581 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:54:53,022 INFO L857 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2021-11-07 07:54:53,022 INFO L857 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,022 INFO L857 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,023 INFO L857 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,024 INFO L857 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,024 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,024 INFO L857 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,024 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,024 INFO L857 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,024 INFO L857 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,024 INFO L857 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2021-11-07 07:54:53,025 INFO L857 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L853 garLoopResultBuilder]: At program point L1035(lines 32 1036) the Hoare annotation is: (let ((.cse15 (< 0 (+ ~a23~0 43))) (.cse17 (<= 141 ~a29~0))) (let ((.cse11 (or .cse15 (not (= ULTIMATE.start_calculate_output_~input 4)) .cse17)) (.cse0 (<= 0 (+ 589264 ~a29~0))) (.cse16 (< (+ ~a29~0 21) 0)) (.cse7 (= ~a25~0 12)) (.cse10 (<= 141 ~a23~0)) (.cse21 (<= ~a29~0 275)) (.cse9 (<= 245 ~a29~0)) (.cse13 (<= (+ 119992 ~a23~0) 0)) (.cse4 (<= ~a29~0 220)) (.cse22 (= ~a25~0 10)) (.cse2 (<= ~a25~0 10)) (.cse19 (<= 256 ~a29~0)) (.cse1 (= ~a4~0 0)) (.cse12 (= ~a25~0 11)) (.cse18 (<= ~a29~0 274)) (.cse5 (<= ~a23~0 312)) (.cse14 (= ~a25~0 13)) (.cse20 (<= 173 ~a23~0)) (.cse3 (= ~a3~0 1)) (.cse8 (= ~a4~0 1)) (.cse6 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse6 .cse9 .cse10) (and .cse7 .cse11 .cse1 .cse3 .cse5 .cse6) (and (<= 260 ~a29~0) .cse1 .cse2 .cse3 .cse5 .cse6) (and .cse12 .cse13 .cse8 .cse6 .cse9) (and .cse0 .cse7 .cse11 .cse1 (<= (+ ~a29~0 580291) 0) .cse3 .cse6) (and .cse14 .cse1 .cse15 .cse3 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse6 .cse16) (and .cse12 .cse3 .cse8 .cse6 (<= 103953 ~a29~0)) (and .cse7 .cse17 .cse3 .cse8 (<= ~a29~0 232) .cse6 .cse10) (and .cse7 .cse1 .cse18 .cse17 .cse3 .cse6) (and .cse19 .cse1 .cse12 .cse3 .cse13 .cse6) (and .cse0 .cse1 .cse12 .cse3 .cse4 .cse5 .cse6) (and .cse14 .cse18 .cse17 .cse3 .cse8 .cse6) (and .cse2 .cse17 .cse3 .cse8 .cse6) (and .cse1 .cse12 .cse3 .cse4 .cse13 .cse6) (and .cse12 .cse20 .cse3 .cse8 .cse5 .cse6) (and .cse14 .cse3 .cse4 (<= 0 (+ 7792 ~a29~0)) .cse8 .cse6 .cse10) (and .cse21 .cse7 .cse1 .cse3 .cse6 .cse9) (and .cse2 .cse3 .cse8 .cse5 .cse6 .cse16 .cse10) (and .cse1 .cse15 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse12 .cse3 .cse8 .cse6 .cse9 .cse10) (and .cse7 .cse3 .cse8 .cse5 .cse6 .cse10) (and .cse3 .cse8 .cse6 (<= 115953 ~a29~0)) (and .cse3 .cse8 .cse6 .cse22) (and .cse21 .cse12 .cse3 .cse8 .cse6 .cse9) (and .cse13 .cse8 .cse6 .cse22) (and .cse1 .cse15 .cse3 .cse4 .cse6 .cse22) (and .cse2 .cse20 .cse3 .cse8 .cse5 .cse6) (and .cse12 .cse18 .cse17 .cse3 .cse8 .cse6) (and .cse19 .cse1 .cse12 .cse18 .cse3 .cse5 .cse6) (and .cse14 .cse20 .cse3 .cse8 .cse6)))) [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,026 INFO L857 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L860 garLoopResultBuilder]: At program point L1038(lines 1038 1054) the Hoare annotation is: true [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,027 INFO L857 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,028 INFO L857 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,029 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,029 INFO L857 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,029 INFO L857 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-07 07:54:53,029 INFO L857 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2021-11-07 07:54:53,029 INFO L857 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2021-11-07 07:54:53,029 INFO L857 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,029 INFO L853 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse15 (< 0 (+ ~a23~0 43))) (.cse17 (<= 141 ~a29~0))) (let ((.cse11 (or .cse15 (not (= ULTIMATE.start_calculate_output_~input 4)) .cse17)) (.cse0 (<= 0 (+ 589264 ~a29~0))) (.cse16 (< (+ ~a29~0 21) 0)) (.cse7 (= ~a25~0 12)) (.cse10 (<= 141 ~a23~0)) (.cse21 (<= ~a29~0 275)) (.cse9 (<= 245 ~a29~0)) (.cse13 (<= (+ 119992 ~a23~0) 0)) (.cse4 (<= ~a29~0 220)) (.cse22 (= ~a25~0 10)) (.cse2 (<= ~a25~0 10)) (.cse19 (<= 256 ~a29~0)) (.cse1 (= ~a4~0 0)) (.cse12 (= ~a25~0 11)) (.cse18 (<= ~a29~0 274)) (.cse5 (<= ~a23~0 312)) (.cse14 (= ~a25~0 13)) (.cse20 (<= 173 ~a23~0)) (.cse3 (= ~a3~0 1)) (.cse8 (= ~a4~0 1)) (.cse6 (= ~a8~0 15))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse6 .cse9 .cse10) (and .cse7 .cse11 .cse1 .cse3 .cse5 .cse6) (and (<= 260 ~a29~0) .cse1 .cse2 .cse3 .cse5 .cse6) (and .cse12 .cse13 .cse8 .cse6 .cse9) (and .cse0 .cse7 .cse11 .cse1 (<= (+ ~a29~0 580291) 0) .cse3 .cse6) (and .cse14 .cse1 .cse15 .cse3 .cse5 .cse6) (and .cse7 .cse3 .cse8 .cse6 .cse16) (and .cse12 .cse3 .cse8 .cse6 (<= 103953 ~a29~0)) (and .cse7 .cse17 .cse3 .cse8 (<= ~a29~0 232) .cse6 .cse10) (and .cse7 .cse1 .cse18 .cse17 .cse3 .cse6) (and .cse19 .cse1 .cse12 .cse3 .cse13 .cse6) (and .cse0 .cse1 .cse12 .cse3 .cse4 .cse5 .cse6) (and .cse14 .cse18 .cse17 .cse3 .cse8 .cse6) (and .cse2 .cse17 .cse3 .cse8 .cse6) (and .cse1 .cse12 .cse3 .cse4 .cse13 .cse6) (and .cse12 .cse20 .cse3 .cse8 .cse5 .cse6) (and .cse14 .cse3 .cse4 (<= 0 (+ 7792 ~a29~0)) .cse8 .cse6 .cse10) (and .cse21 .cse7 .cse1 .cse3 .cse6 .cse9) (and .cse2 .cse3 .cse8 .cse5 .cse6 .cse16 .cse10) (and .cse1 .cse15 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse12 .cse3 .cse8 .cse6 .cse9 .cse10) (and .cse7 .cse3 .cse8 .cse5 .cse6 .cse10) (and .cse3 .cse8 .cse6 (<= 115953 ~a29~0)) (and .cse3 .cse8 .cse6 .cse22) (and .cse21 .cse12 .cse3 .cse8 .cse6 .cse9) (and .cse13 .cse8 .cse6 .cse22) (and .cse1 .cse15 .cse3 .cse4 .cse6 .cse22) (and .cse2 .cse20 .cse3 .cse8 .cse5 .cse6) (and .cse12 .cse18 .cse17 .cse3 .cse8 .cse6) (and .cse19 .cse1 .cse12 .cse18 .cse3 .cse5 .cse6) (and .cse14 .cse20 .cse3 .cse8 .cse6)))) [2021-11-07 07:54:53,029 INFO L857 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,030 INFO L857 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,030 INFO L857 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,030 INFO L857 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,030 INFO L857 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,030 INFO L857 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,030 INFO L857 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,030 INFO L857 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,031 INFO L857 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-11-07 07:54:53,031 INFO L857 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2021-11-07 07:54:53,031 INFO L857 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2021-11-07 07:54:53,031 INFO L857 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2021-11-07 07:54:53,031 INFO L857 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2021-11-07 07:54:53,031 INFO L857 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2021-11-07 07:54:53,031 INFO L857 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2021-11-07 07:54:53,031 INFO L857 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2021-11-07 07:54:53,032 INFO L857 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,033 INFO L857 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,034 INFO L857 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2021-11-07 07:54:53,035 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-07 07:54:53,036 INFO L857 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,037 INFO L857 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,037 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,037 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,037 INFO L857 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,037 INFO L857 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,037 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,037 INFO L857 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,037 INFO L857 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2021-11-07 07:54:53,038 INFO L857 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-11-07 07:54:53,038 INFO L857 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2021-11-07 07:54:53,038 INFO L857 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,038 INFO L857 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,038 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,038 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,038 INFO L857 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,038 INFO L857 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,039 INFO L857 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,039 INFO L857 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,039 INFO L857 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,039 INFO L857 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,039 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,039 INFO L857 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2021-11-07 07:54:53,039 INFO L857 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2021-11-07 07:54:53,040 INFO L857 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2021-11-07 07:54:53,040 INFO L857 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-07 07:54:53,040 INFO L857 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2021-11-07 07:54:53,040 INFO L857 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,040 INFO L857 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,040 INFO L857 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,040 INFO L857 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,040 INFO L857 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,041 INFO L857 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2021-11-07 07:54:53,042 INFO L857 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2021-11-07 07:54:53,042 INFO L857 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,042 INFO L857 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,042 INFO L857 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,042 INFO L857 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,042 INFO L857 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,042 INFO L857 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2021-11-07 07:54:53,043 INFO L857 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2021-11-07 07:54:53,043 INFO L857 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,043 INFO L857 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,043 INFO L857 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2021-11-07 07:54:53,043 INFO L857 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2021-11-07 07:54:53,043 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,043 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,044 INFO L857 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2021-11-07 07:54:53,045 INFO L857 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2021-11-07 07:54:53,046 INFO L857 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2021-11-07 07:54:53,046 INFO L857 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,046 INFO L857 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,046 INFO L857 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,046 INFO L857 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,046 INFO L857 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,046 INFO L857 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,047 INFO L857 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,047 INFO L857 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-07 07:54:53,047 INFO L857 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2021-11-07 07:54:53,047 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 07:54:53,047 INFO L857 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,047 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,047 INFO L857 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,047 INFO L857 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,048 INFO L857 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,048 INFO L857 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,048 INFO L857 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-11-07 07:54:53,048 INFO L857 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2021-11-07 07:54:53,048 INFO L857 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,048 INFO L857 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,048 INFO L857 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,049 INFO L857 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,049 INFO L857 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,049 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,049 INFO L857 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,049 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2021-11-07 07:54:53,049 INFO L857 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2021-11-07 07:54:53,049 INFO L857 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,049 INFO L857 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,050 INFO L857 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-07 07:54:53,050 INFO L857 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-11-07 07:54:53,050 INFO L857 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2021-11-07 07:54:53,050 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2021-11-07 07:54:53,052 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:54:53,054 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:54:53,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:54:53 BoogieIcfgContainer [2021-11-07 07:54:53,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:54:53,102 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:54:53,102 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:54:53,102 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:54:53,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:53:11" (3/4) ... [2021-11-07 07:54:53,105 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 07:54:53,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 07:54:53,138 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-07 07:54:53,140 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 07:54:53,142 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 07:54:53,281 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 07:54:53,281 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:54:53,282 INFO L168 Benchmark]: Toolchain (without parser) took 105210.28 ms. Allocated memory was 83.9 MB in the beginning and 4.7 GB in the end (delta: 4.6 GB). Free memory was 45.8 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 1.4 GB. Max. memory is 16.1 GB. [2021-11-07 07:54:53,283 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 56.9 MB in the beginning and 56.9 MB in the end (delta: 31.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:54:53,283 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1071.43 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 45.7 MB in the beginning and 47.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:54:53,284 INFO L168 Benchmark]: Boogie Procedure Inliner took 213.38 ms. Allocated memory is still 104.9 MB. Free memory was 47.5 MB in the beginning and 66.4 MB in the end (delta: -18.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:54:53,284 INFO L168 Benchmark]: Boogie Preprocessor took 155.37 ms. Allocated memory is still 104.9 MB. Free memory was 66.4 MB in the beginning and 57.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:54:53,285 INFO L168 Benchmark]: RCFGBuilder took 2058.05 ms. Allocated memory was 104.9 MB in the beginning and 161.5 MB in the end (delta: 56.6 MB). Free memory was 57.3 MB in the beginning and 95.4 MB in the end (delta: -38.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:54:53,285 INFO L168 Benchmark]: TraceAbstraction took 101525.35 ms. Allocated memory was 161.5 MB in the beginning and 4.7 GB in the end (delta: 4.5 GB). Free memory was 95.4 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.1 GB. [2021-11-07 07:54:53,285 INFO L168 Benchmark]: Witness Printer took 179.43 ms. Allocated memory is still 4.7 GB. Free memory was 3.3 GB in the beginning and 3.3 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-11-07 07:54:53,288 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 83.9 MB. Free memory was 56.9 MB in the beginning and 56.9 MB in the end (delta: 31.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1071.43 ms. Allocated memory was 83.9 MB in the beginning and 104.9 MB in the end (delta: 21.0 MB). Free memory was 45.7 MB in the beginning and 47.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 213.38 ms. Allocated memory is still 104.9 MB. Free memory was 47.5 MB in the beginning and 66.4 MB in the end (delta: -18.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 155.37 ms. Allocated memory is still 104.9 MB. Free memory was 66.4 MB in the beginning and 57.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2058.05 ms. Allocated memory was 104.9 MB in the beginning and 161.5 MB in the end (delta: 56.6 MB). Free memory was 57.3 MB in the beginning and 95.4 MB in the end (delta: -38.1 MB). Peak memory consumption was 50.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 101525.35 ms. Allocated memory was 161.5 MB in the beginning and 4.7 GB in the end (delta: 4.5 GB). Free memory was 95.4 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.1 GB. * Witness Printer took 179.43 ms. Allocated memory is still 4.7 GB. Free memory was 3.3 GB in the beginning and 3.3 GB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 184]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 101.3s, OverallIterations: 29, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 44.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.9s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 4613 SDtfs, 9485 SDslu, 1025 SDs, 0 SdLazy, 32530 SolverSat, 4896 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 31.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3615 GetRequests, 3529 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43507occurred in iteration=28, InterpolantAutomatonStates: 129, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.8s AutomataMinimizationTime, 29 MinimizatonAttempts, 58574 StatesRemovedByMinimization, 27 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 473 NumberOfFragments, 1297 HoareAnnotationTreeSize, 3 FomulaSimplifications, 748718 FormulaSimplificationTreeSizeReduction, 7.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 578614 FormulaSimplificationTreeSizeReductionInter, 9.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 20.1s InterpolantComputationTime, 13660 NumberOfCodeBlocks, 13660 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 13624 ConstructedInterpolants, 0 QuantifiedInterpolants, 44963 SizeOfPredicates, 6 NumberOfNonLiveVariables, 4731 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 36 InterpolantComputations, 25 PerfectInterpolantSequences, 15483/17319 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((0 <= 589264 + a29 && a4 == 0) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29) && 141 <= a23)) || (((((a25 == 12 && ((0 < a23 + 43 || !(input == 4)) || 141 <= a29)) && a4 == 0) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((260 <= a29 && a4 == 0) && a25 <= 10) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 11 && 119992 + a23 <= 0) && a4 == 1) && a8 == 15) && 245 <= a29)) || ((((((0 <= 589264 + a29 && a25 == 12) && ((0 < a23 + 43 || !(input == 4)) || 141 <= a29)) && a4 == 0) && a29 + 580291 <= 0) && a3 == 1) && a8 == 15)) || (((((a25 == 13 && a4 == 0) && 0 < a23 + 43) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && a29 + 21 < 0)) || ((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) && 103953 <= a29)) || ((((((a25 == 12 && 141 <= a29) && a3 == 1) && a4 == 1) && a29 <= 232) && a8 == 15) && 141 <= a23)) || (((((a25 == 12 && a4 == 0) && a29 <= 274) && 141 <= a29) && a3 == 1) && a8 == 15)) || (((((256 <= a29 && a4 == 0) && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a8 == 15)) || ((((((0 <= 589264 + a29 && a4 == 0) && a25 == 11) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a25 == 13 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 <= 10 && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a4 == 0 && a25 == 11) && a3 == 1) && a29 <= 220) && 119992 + a23 <= 0) && a8 == 15)) || (((((a25 == 11 && 173 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((((a25 == 13 && a3 == 1) && a29 <= 220) && 0 <= 7792 + a29) && a4 == 1) && a8 == 15) && 141 <= a23)) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15) && 245 <= a29)) || ((((((a25 <= 10 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && a29 + 21 < 0) && 141 <= a23)) || ((((((a4 == 0 && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29) && 141 <= a23)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 141 <= a23)) || (((a3 == 1 && a4 == 1) && a8 == 15) && 115953 <= a29)) || (((a3 == 1 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a29 <= 275 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29)) || (((119992 + a23 <= 0 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a4 == 0 && 0 < a23 + 43) && a3 == 1) && a29 <= 220) && a8 == 15) && a25 == 10)) || (((((a25 <= 10 && 173 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((256 <= a29 && a4 == 0) && a25 == 11) && a29 <= 274) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 13 && 173 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((0 <= 589264 + a29 && a4 == 0) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29) && 141 <= a23)) || (((((a25 == 12 && ((0 < a23 + 43 || !(input == 4)) || 141 <= a29)) && a4 == 0) && a3 == 1) && a23 <= 312) && a8 == 15)) || (((((260 <= a29 && a4 == 0) && a25 <= 10) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 11 && 119992 + a23 <= 0) && a4 == 1) && a8 == 15) && 245 <= a29)) || ((((((0 <= 589264 + a29 && a25 == 12) && ((0 < a23 + 43 || !(input == 4)) || 141 <= a29)) && a4 == 0) && a29 + 580291 <= 0) && a3 == 1) && a8 == 15)) || (((((a25 == 13 && a4 == 0) && 0 < a23 + 43) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 12 && a3 == 1) && a4 == 1) && a8 == 15) && a29 + 21 < 0)) || ((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) && 103953 <= a29)) || ((((((a25 == 12 && 141 <= a29) && a3 == 1) && a4 == 1) && a29 <= 232) && a8 == 15) && 141 <= a23)) || (((((a25 == 12 && a4 == 0) && a29 <= 274) && 141 <= a29) && a3 == 1) && a8 == 15)) || (((((256 <= a29 && a4 == 0) && a25 == 11) && a3 == 1) && 119992 + a23 <= 0) && a8 == 15)) || ((((((0 <= 589264 + a29 && a4 == 0) && a25 == 11) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a25 == 13 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((a25 <= 10 && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || (((((a4 == 0 && a25 == 11) && a3 == 1) && a29 <= 220) && 119992 + a23 <= 0) && a8 == 15)) || (((((a25 == 11 && 173 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || ((((((a25 == 13 && a3 == 1) && a29 <= 220) && 0 <= 7792 + a29) && a4 == 1) && a8 == 15) && 141 <= a23)) || (((((a29 <= 275 && a25 == 12) && a4 == 0) && a3 == 1) && a8 == 15) && 245 <= a29)) || ((((((a25 <= 10 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && a29 + 21 < 0) && 141 <= a23)) || ((((((a4 == 0 && 0 < a23 + 43) && a25 <= 10) && a3 == 1) && a29 <= 220) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29) && 141 <= a23)) || (((((a25 == 12 && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15) && 141 <= a23)) || (((a3 == 1 && a4 == 1) && a8 == 15) && 115953 <= a29)) || (((a3 == 1 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a29 <= 275 && a25 == 11) && a3 == 1) && a4 == 1) && a8 == 15) && 245 <= a29)) || (((119992 + a23 <= 0 && a4 == 1) && a8 == 15) && a25 == 10)) || (((((a4 == 0 && 0 < a23 + 43) && a3 == 1) && a29 <= 220) && a8 == 15) && a25 == 10)) || (((((a25 <= 10 && 173 <= a23) && a3 == 1) && a4 == 1) && a23 <= 312) && a8 == 15)) || (((((a25 == 11 && a29 <= 274) && 141 <= a29) && a3 == 1) && a4 == 1) && a8 == 15)) || ((((((256 <= a29 && a4 == 0) && a25 == 11) && a29 <= 274) && a3 == 1) && a23 <= 312) && a8 == 15)) || ((((a25 == 13 && 173 <= a23) && a3 == 1) && a4 == 1) && a8 == 15) - InvariantResult [Line: 1038]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-07 07:54:53,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_625ef156-0974-491f-998d-88cf8ed3543c/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE