./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s4lif.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/s4lif.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3 --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 534f65d1ff2b45362991156181f9c292b124b459 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:48:41,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:48:41,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:48:41,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:48:41,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:48:41,700 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:48:41,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:48:41,705 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:48:41,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:48:41,709 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:48:41,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:48:41,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:48:41,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:48:41,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:48:41,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:48:41,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:48:41,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:48:41,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:48:41,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:48:41,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:48:41,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:48:41,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:48:41,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:48:41,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:48:41,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:48:41,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:48:41,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:48:41,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:48:41,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:48:41,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:48:41,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:48:41,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:48:41,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:48:41,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:48:41,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:48:41,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:48:41,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:48:41,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:48:41,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:48:41,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:48:41,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:48:41,764 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:48:41,795 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:48:41,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:48:41,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:48:41,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:48:41,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:48:41,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:48:41,805 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:48:41,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:48:41,806 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:48:41,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:48:41,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:48:41,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:48:41,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:48:41,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:48:41,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:48:41,808 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:48:41,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:48:41,809 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:48:41,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:48:41,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:48:41,810 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:48:41,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:48:41,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:48:41,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:48:41,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:48:41,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:48:41,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:48:41,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:48:41,812 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:48:41,814 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:48:41,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:48:41,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:48:41,814 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_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 534f65d1ff2b45362991156181f9c292b124b459 [2021-10-15 19:48:42,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:48:42,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:48:42,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:48:42,160 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:48:42,161 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:48:42,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/array-fpi/s4lif.c [2021-10-15 19:48:42,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/data/66843e142/cf2169350c6d41cd9382aeb86b7f6708/FLAG40358858a [2021-10-15 19:48:42,656 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:48:42,656 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/sv-benchmarks/c/array-fpi/s4lif.c [2021-10-15 19:48:42,663 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/data/66843e142/cf2169350c6d41cd9382aeb86b7f6708/FLAG40358858a [2021-10-15 19:48:43,057 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/data/66843e142/cf2169350c6d41cd9382aeb86b7f6708 [2021-10-15 19:48:43,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:48:43,061 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:48:43,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:48:43,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:48:43,069 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:48:43,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18fe358d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43, skipping insertion in model container [2021-10-15 19:48:43,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,079 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:48:43,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:48:43,276 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_c8d07739-2244-4327-a9cc-09d815342fd2/sv-benchmarks/c/array-fpi/s4lif.c[588,601] [2021-10-15 19:48:43,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:48:43,312 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:48:43,324 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_c8d07739-2244-4327-a9cc-09d815342fd2/sv-benchmarks/c/array-fpi/s4lif.c[588,601] [2021-10-15 19:48:43,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:48:43,347 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:48:43,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43 WrapperNode [2021-10-15 19:48:43,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:48:43,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:48:43,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:48:43,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:48:43,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,363 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:48:43,392 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:48:43,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:48:43,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:48:43,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,407 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:48:43,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:48:43,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:48:43,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:48:43,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (1/1) ... [2021-10-15 19:48:43,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:48:43,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:43,490 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:48:43,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:48:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:48:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:48:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:48:43,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:48:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:48:43,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:48:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:48:43,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:48:43,874 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:48:43,874 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-15 19:48:43,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:48:43 BoogieIcfgContainer [2021-10-15 19:48:43,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:48:43,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:48:43,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:48:43,881 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:48:43,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:48:43" (1/3) ... [2021-10-15 19:48:43,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceebbc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:48:43, skipping insertion in model container [2021-10-15 19:48:43,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:48:43" (2/3) ... [2021-10-15 19:48:43,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ceebbc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:48:43, skipping insertion in model container [2021-10-15 19:48:43,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:48:43" (3/3) ... [2021-10-15 19:48:43,885 INFO L111 eAbstractionObserver]: Analyzing ICFG s4lif.c [2021-10-15 19:48:43,890 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:48:43,890 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:48:43,933 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:48:43,940 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, mConcurrency=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 [2021-10-15 19:48:43,940 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:48:43,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 31 transitions, 62 flow [2021-10-15 19:48:43,970 INFO L129 PetriNetUnfolder]: 10/31 cut-off events. [2021-10-15 19:48:43,971 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:48:43,972 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 31 events. 10/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-15 19:48:43,973 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 31 transitions, 62 flow [2021-10-15 19:48:43,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 25 transitions, 50 flow [2021-10-15 19:48:43,982 INFO L129 PetriNetUnfolder]: 8/24 cut-off events. [2021-10-15 19:48:43,982 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:48:43,983 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:43,983 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:43,984 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:43,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:43,989 INFO L82 PathProgramCache]: Analyzing trace with hash -923568332, now seen corresponding path program 1 times [2021-10-15 19:48:43,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:43,999 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520589108] [2021-10-15 19:48:43,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:44,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:44,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:48:44,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:44,256 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520589108] [2021-10-15 19:48:44,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520589108] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:48:44,258 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:48:44,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:48:44,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564414897] [2021-10-15 19:48:44,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:48:44,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:44,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:48:44,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:48:44,284 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:48:44,287 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 25 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:44,287 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:44,287 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:48:44,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:44,358 INFO L129 PetriNetUnfolder]: 5/29 cut-off events. [2021-10-15 19:48:44,358 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:48:44,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 29 events. 5/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2021-10-15 19:48:44,360 INFO L132 encePairwiseOnDemand]: 17/31 looper letters, 19 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2021-10-15 19:48:44,360 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 29 transitions, 110 flow [2021-10-15 19:48:44,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:48:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-15 19:48:44,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2021-10-15 19:48:44,372 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2021-10-15 19:48:44,373 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 64 transitions. [2021-10-15 19:48:44,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 64 transitions. [2021-10-15 19:48:44,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:44,377 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 64 transitions. [2021-10-15 19:48:44,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:44,387 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:44,387 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:44,389 INFO L186 Difference]: Start difference. First operand has 18 places, 25 transitions, 50 flow. Second operand 4 states and 64 transitions. [2021-10-15 19:48:44,390 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 29 transitions, 110 flow [2021-10-15 19:48:44,394 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:48:44,399 INFO L242 Difference]: Finished difference. Result has 22 places, 24 transitions, 80 flow [2021-10-15 19:48:44,401 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=22, PETRI_TRANSITIONS=24} [2021-10-15 19:48:44,402 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2021-10-15 19:48:44,403 INFO L470 AbstractCegarLoop]: Abstraction has has 22 places, 24 transitions, 80 flow [2021-10-15 19:48:44,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:44,404 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:44,404 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:44,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:48:44,404 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:44,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:44,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1608161903, now seen corresponding path program 1 times [2021-10-15 19:48:44,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:44,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858013120] [2021-10-15 19:48:44,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:44,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:48:44,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:44,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858013120] [2021-10-15 19:48:44,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858013120] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:44,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1792898460] [2021-10-15 19:48:44,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:44,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:44,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:44,760 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:44,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-15 19:48:44,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:44,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-15 19:48:44,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:44,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:48:45,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-15 19:48:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:48:45,086 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1792898460] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:45,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:45,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-10-15 19:48:45,087 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109695467] [2021-10-15 19:48:45,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-15 19:48:45,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:45,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-15 19:48:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-15 19:48:45,102 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2021-10-15 19:48:45,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 24 transitions, 80 flow. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:45,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:45,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2021-10-15 19:48:45,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:45,209 INFO L129 PetriNetUnfolder]: 4/28 cut-off events. [2021-10-15 19:48:45,209 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-15 19:48:45,211 INFO L84 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 28 events. 4/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 12. Up to 16 conditions per place. [2021-10-15 19:48:45,212 INFO L132 encePairwiseOnDemand]: 23/31 looper letters, 16 selfloop transitions, 7 changer transitions 0/27 dead transitions. [2021-10-15 19:48:45,219 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 27 transitions, 132 flow [2021-10-15 19:48:45,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-15 19:48:45,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-15 19:48:45,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 77 transitions. [2021-10-15 19:48:45,224 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.41397849462365593 [2021-10-15 19:48:45,225 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 77 transitions. [2021-10-15 19:48:45,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 77 transitions. [2021-10-15 19:48:45,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:45,226 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 77 transitions. [2021-10-15 19:48:45,229 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:45,231 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:45,231 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 31.0) internal successors, (217), 7 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:45,232 INFO L186 Difference]: Start difference. First operand has 22 places, 24 transitions, 80 flow. Second operand 6 states and 77 transitions. [2021-10-15 19:48:45,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 27 transitions, 132 flow [2021-10-15 19:48:45,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 27 transitions, 124 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 19:48:45,240 INFO L242 Difference]: Finished difference. Result has 28 places, 27 transitions, 110 flow [2021-10-15 19:48:45,241 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=110, PETRI_PLACES=28, PETRI_TRANSITIONS=27} [2021-10-15 19:48:45,241 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 10 predicate places. [2021-10-15 19:48:45,242 INFO L470 AbstractCegarLoop]: Abstraction has has 28 places, 27 transitions, 110 flow [2021-10-15 19:48:45,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 7 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:45,242 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:45,243 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:45,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:45,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:45,456 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:45,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:45,457 INFO L82 PathProgramCache]: Analyzing trace with hash 2001188913, now seen corresponding path program 1 times [2021-10-15 19:48:45,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:45,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411866275] [2021-10-15 19:48:45,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:45,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:45,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:45,970 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:48:45,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:45,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411866275] [2021-10-15 19:48:45,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411866275] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:45,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675866881] [2021-10-15 19:48:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:45,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:45,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:45,973 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:45,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-15 19:48:46,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:46,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-15 19:48:46,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:46,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:48:46,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:46,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:48:46,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:46,600 INFO L354 Elim1Store]: treesize reduction 53, result has 1.9 percent of original size [2021-10-15 19:48:46,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 51 treesize of output 34 [2021-10-15 19:48:46,787 INFO L354 Elim1Store]: treesize reduction 39, result has 15.2 percent of original size [2021-10-15 19:48:46,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 28 [2021-10-15 19:48:46,933 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-10-15 19:48:46,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 41 [2021-10-15 19:48:46,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:48:46,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675866881] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:46,975 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:46,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2021-10-15 19:48:46,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413906806] [2021-10-15 19:48:46,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-10-15 19:48:46,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:46,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-10-15 19:48:46,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2021-10-15 19:48:46,978 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:48:46,978 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 27 transitions, 110 flow. Second operand has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 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) [2021-10-15 19:48:46,978 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:46,979 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:48:46,979 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:47,609 INFO L129 PetriNetUnfolder]: 10/56 cut-off events. [2021-10-15 19:48:47,609 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-10-15 19:48:47,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 174 conditions, 56 events. 10/56 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 92 event pairs, 0 based on Foata normal form. 1/54 useless extension candidates. Maximal degree in co-relation 72. Up to 24 conditions per place. [2021-10-15 19:48:47,610 INFO L132 encePairwiseOnDemand]: 16/31 looper letters, 28 selfloop transitions, 23 changer transitions 2/55 dead transitions. [2021-10-15 19:48:47,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 55 transitions, 330 flow [2021-10-15 19:48:47,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-15 19:48:47,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-15 19:48:47,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 126 transitions. [2021-10-15 19:48:47,617 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.21392190152801357 [2021-10-15 19:48:47,618 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 126 transitions. [2021-10-15 19:48:47,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 126 transitions. [2021-10-15 19:48:47,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:47,619 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 126 transitions. [2021-10-15 19:48:47,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 6.631578947368421) internal successors, (126), 19 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:47,624 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 31.0) internal successors, (620), 20 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:47,625 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 31.0) internal successors, (620), 20 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:47,625 INFO L186 Difference]: Start difference. First operand has 28 places, 27 transitions, 110 flow. Second operand 19 states and 126 transitions. [2021-10-15 19:48:47,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 55 transitions, 330 flow [2021-10-15 19:48:47,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 55 transitions, 324 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-15 19:48:47,632 INFO L242 Difference]: Finished difference. Result has 55 places, 46 transitions, 288 flow [2021-10-15 19:48:47,632 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=288, PETRI_PLACES=55, PETRI_TRANSITIONS=46} [2021-10-15 19:48:47,632 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 37 predicate places. [2021-10-15 19:48:47,633 INFO L470 AbstractCegarLoop]: Abstraction has has 55 places, 46 transitions, 288 flow [2021-10-15 19:48:47,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.434782608695652) internal successors, (125), 23 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) [2021-10-15 19:48:47,633 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:47,634 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:47,667 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:47,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:47,849 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:47,850 INFO L82 PathProgramCache]: Analyzing trace with hash -949569453, now seen corresponding path program 2 times [2021-10-15 19:48:47,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:47,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981744271] [2021-10-15 19:48:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:47,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:47,913 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:48:47,913 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:47,913 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981744271] [2021-10-15 19:48:47,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981744271] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:47,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053542113] [2021-10-15 19:48:47,914 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 19:48:47,914 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:47,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:47,915 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:47,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-15 19:48:48,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-15 19:48:48,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:48:48,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 19:48:48,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:48,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:48:48,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053542113] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:48,108 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:48,108 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-15 19:48:48,108 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861560344] [2021-10-15 19:48:48,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-15 19:48:48,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:48,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-15 19:48:48,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-15 19:48:48,110 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:48:48,110 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 46 transitions, 288 flow. Second operand has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,110 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:48,110 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:48:48,111 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:48,238 INFO L129 PetriNetUnfolder]: 5/58 cut-off events. [2021-10-15 19:48:48,238 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-10-15 19:48:48,239 INFO L84 FinitePrefix]: Finished finitePrefix Result has 230 conditions, 58 events. 5/58 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 70 event pairs, 0 based on Foata normal form. 3/59 useless extension candidates. Maximal degree in co-relation 203. Up to 22 conditions per place. [2021-10-15 19:48:48,240 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 23 selfloop transitions, 18 changer transitions 9/53 dead transitions. [2021-10-15 19:48:48,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 53 transitions, 406 flow [2021-10-15 19:48:48,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-15 19:48:48,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-15 19:48:48,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 113 transitions. [2021-10-15 19:48:48,241 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4050179211469534 [2021-10-15 19:48:48,242 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 113 transitions. [2021-10-15 19:48:48,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 113 transitions. [2021-10-15 19:48:48,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:48,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 113 transitions. [2021-10-15 19:48:48,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,244 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,244 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,244 INFO L186 Difference]: Start difference. First operand has 55 places, 46 transitions, 288 flow. Second operand 9 states and 113 transitions. [2021-10-15 19:48:48,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 53 transitions, 406 flow [2021-10-15 19:48:48,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 53 transitions, 387 flow, removed 9 selfloop flow, removed 4 redundant places. [2021-10-15 19:48:48,250 INFO L242 Difference]: Finished difference. Result has 55 places, 35 transitions, 230 flow [2021-10-15 19:48:48,250 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=230, PETRI_PLACES=55, PETRI_TRANSITIONS=35} [2021-10-15 19:48:48,251 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 37 predicate places. [2021-10-15 19:48:48,251 INFO L470 AbstractCegarLoop]: Abstraction has has 55 places, 35 transitions, 230 flow [2021-10-15 19:48:48,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.6) internal successors, (96), 10 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,251 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:48,251 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:48,291 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:48,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:48,477 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:48,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:48,477 INFO L82 PathProgramCache]: Analyzing trace with hash -2105967953, now seen corresponding path program 3 times [2021-10-15 19:48:48,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:48,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376781416] [2021-10-15 19:48:48,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:48,478 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:48,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:48:48,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:48,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376781416] [2021-10-15 19:48:48,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376781416] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:48,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847969783] [2021-10-15 19:48:48,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-15 19:48:48,537 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:48,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:48,538 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:48,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-15 19:48:48,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-15 19:48:48,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:48:48,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-15 19:48:48,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:48,743 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-15 19:48:48,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847969783] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:48,743 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:48,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-15 19:48:48,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413898270] [2021-10-15 19:48:48,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-15 19:48:48,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:48,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-15 19:48:48,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-10-15 19:48:48,747 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:48:48,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 35 transitions, 230 flow. Second operand has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:48,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:48:48,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:48,877 INFO L129 PetriNetUnfolder]: 5/36 cut-off events. [2021-10-15 19:48:48,877 INFO L130 PetriNetUnfolder]: For 45/45 co-relation queries the response was YES. [2021-10-15 19:48:48,878 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 36 events. 5/36 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 2/36 useless extension candidates. Maximal degree in co-relation 140. Up to 12 conditions per place. [2021-10-15 19:48:48,879 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 16 selfloop transitions, 17 changer transitions 0/36 dead transitions. [2021-10-15 19:48:48,879 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 36 transitions, 289 flow [2021-10-15 19:48:48,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-15 19:48:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-15 19:48:48,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 97 transitions. [2021-10-15 19:48:48,882 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.34767025089605735 [2021-10-15 19:48:48,882 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 97 transitions. [2021-10-15 19:48:48,883 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 97 transitions. [2021-10-15 19:48:48,883 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:48,883 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 97 transitions. [2021-10-15 19:48:48,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 10.777777777777779) internal successors, (97), 9 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,886 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,887 INFO L186 Difference]: Start difference. First operand has 55 places, 35 transitions, 230 flow. Second operand 9 states and 97 transitions. [2021-10-15 19:48:48,887 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 36 transitions, 289 flow [2021-10-15 19:48:48,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 36 transitions, 235 flow, removed 19 selfloop flow, removed 12 redundant places. [2021-10-15 19:48:48,895 INFO L242 Difference]: Finished difference. Result has 42 places, 33 transitions, 208 flow [2021-10-15 19:48:48,895 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=208, PETRI_PLACES=42, PETRI_TRANSITIONS=33} [2021-10-15 19:48:48,896 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 24 predicate places. [2021-10-15 19:48:48,896 INFO L470 AbstractCegarLoop]: Abstraction has has 42 places, 33 transitions, 208 flow [2021-10-15 19:48:48,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.1) internal successors, (101), 10 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:48,896 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:48,897 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:48,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:49,123 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:49,124 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:49,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:49,124 INFO L82 PathProgramCache]: Analyzing trace with hash -774428629, now seen corresponding path program 1 times [2021-10-15 19:48:49,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:49,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195233646] [2021-10-15 19:48:49,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:49,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:49,325 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-15 19:48:49,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:49,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195233646] [2021-10-15 19:48:49,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195233646] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:49,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735016098] [2021-10-15 19:48:49,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:49,326 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:49,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:49,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:49,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-15 19:48:49,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:49,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-15 19:48:49,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:49,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-15 19:48:49,551 INFO L354 Elim1Store]: treesize reduction 47, result has 16.1 percent of original size [2021-10-15 19:48:49,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 26 [2021-10-15 19:48:49,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-10-15 19:48:49,638 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-15 19:48:49,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735016098] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:49,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:49,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 16 [2021-10-15 19:48:49,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484902486] [2021-10-15 19:48:49,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-15 19:48:49,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-15 19:48:49,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-10-15 19:48:49,646 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:48:49,646 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 33 transitions, 208 flow. Second operand has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:49,647 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:49,647 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:48:49,647 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:49,920 INFO L129 PetriNetUnfolder]: 4/35 cut-off events. [2021-10-15 19:48:49,920 INFO L130 PetriNetUnfolder]: For 36/36 co-relation queries the response was YES. [2021-10-15 19:48:49,920 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 35 events. 4/35 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 10 event pairs, 0 based on Foata normal form. 0/34 useless extension candidates. Maximal degree in co-relation 88. Up to 10 conditions per place. [2021-10-15 19:48:49,921 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 11 selfloop transitions, 21 changer transitions 0/35 dead transitions. [2021-10-15 19:48:49,921 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 35 transitions, 280 flow [2021-10-15 19:48:49,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-15 19:48:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-10-15 19:48:49,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 131 transitions. [2021-10-15 19:48:49,923 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.30184331797235026 [2021-10-15 19:48:49,923 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 131 transitions. [2021-10-15 19:48:49,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 131 transitions. [2021-10-15 19:48:49,923 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:49,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 131 transitions. [2021-10-15 19:48:49,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 9.357142857142858) internal successors, (131), 14 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:49,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 31.0) internal successors, (465), 15 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:49,926 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 31.0) internal successors, (465), 15 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:49,926 INFO L186 Difference]: Start difference. First operand has 42 places, 33 transitions, 208 flow. Second operand 14 states and 131 transitions. [2021-10-15 19:48:49,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 35 transitions, 280 flow [2021-10-15 19:48:49,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 35 transitions, 247 flow, removed 6 selfloop flow, removed 6 redundant places. [2021-10-15 19:48:49,929 INFO L242 Difference]: Finished difference. Result has 50 places, 35 transitions, 231 flow [2021-10-15 19:48:49,930 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=231, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2021-10-15 19:48:49,930 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 32 predicate places. [2021-10-15 19:48:49,930 INFO L470 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 231 flow [2021-10-15 19:48:49,930 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.125) internal successors, (146), 16 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:49,931 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:49,931 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:49,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:50,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:50,131 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:50,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:50,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1032594067, now seen corresponding path program 4 times [2021-10-15 19:48:50,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:50,132 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719131800] [2021-10-15 19:48:50,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:50,132 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:50,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:48:51,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:51,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719131800] [2021-10-15 19:48:51,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719131800] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:51,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425022131] [2021-10-15 19:48:51,038 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-15 19:48:51,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:51,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:51,052 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:51,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-15 19:48:51,169 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-15 19:48:51,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:48:51,171 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 38 conjunts are in the unsatisfiable core [2021-10-15 19:48:51,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:51,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:48:51,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-15 19:48:51,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:51,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:48:51,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:51,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-10-15 19:48:51,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:51,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:51,700 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:48:51,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 39 [2021-10-15 19:48:51,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:51,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 35 [2021-10-15 19:48:52,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:52,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:52,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:48:52,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 39 [2021-10-15 19:48:52,394 INFO L354 Elim1Store]: treesize reduction 76, result has 16.5 percent of original size [2021-10-15 19:48:52,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 37 [2021-10-15 19:48:52,553 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-10-15 19:48:52,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 45 [2021-10-15 19:48:52,603 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:48:52,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425022131] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:52,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:52,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 36 [2021-10-15 19:48:52,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503860042] [2021-10-15 19:48:52,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-15 19:48:52,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:52,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-15 19:48:52,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=1082, Unknown=0, NotChecked=0, Total=1260 [2021-10-15 19:48:52,607 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:48:52,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 231 flow. Second operand has 36 states, 36 states have (on average 5.277777777777778) internal successors, (190), 36 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:52,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:52,608 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:48:52,608 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:53,737 INFO L129 PetriNetUnfolder]: 10/72 cut-off events. [2021-10-15 19:48:53,737 INFO L130 PetriNetUnfolder]: For 66/66 co-relation queries the response was YES. [2021-10-15 19:48:53,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 326 conditions, 72 events. 10/72 cut-off events. For 66/66 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 123 event pairs, 0 based on Foata normal form. 1/70 useless extension candidates. Maximal degree in co-relation 171. Up to 32 conditions per place. [2021-10-15 19:48:53,738 INFO L132 encePairwiseOnDemand]: 17/31 looper letters, 34 selfloop transitions, 34 changer transitions 2/72 dead transitions. [2021-10-15 19:48:53,739 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 72 transitions, 632 flow [2021-10-15 19:48:53,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-10-15 19:48:53,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2021-10-15 19:48:53,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 185 transitions. [2021-10-15 19:48:53,741 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.19250780437044746 [2021-10-15 19:48:53,741 INFO L72 ComplementDD]: Start complementDD. Operand 31 states and 185 transitions. [2021-10-15 19:48:53,741 INFO L73 IsDeterministic]: Start isDeterministic. Operand 31 states and 185 transitions. [2021-10-15 19:48:53,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:53,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 31 states and 185 transitions. [2021-10-15 19:48:53,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 32 states, 31 states have (on average 5.967741935483871) internal successors, (185), 31 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) [2021-10-15 19:48:53,745 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 32 states, 32 states have (on average 31.0) internal successors, (992), 32 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:53,745 INFO L81 ComplementDD]: Finished complementDD. Result has 32 states, 32 states have (on average 31.0) internal successors, (992), 32 states have internal predecessors, (992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:53,746 INFO L186 Difference]: Start difference. First operand has 50 places, 35 transitions, 231 flow. Second operand 31 states and 185 transitions. [2021-10-15 19:48:53,746 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 72 transitions, 632 flow [2021-10-15 19:48:53,748 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 72 transitions, 469 flow, removed 27 selfloop flow, removed 9 redundant places. [2021-10-15 19:48:53,751 INFO L242 Difference]: Finished difference. Result has 84 places, 64 transitions, 437 flow [2021-10-15 19:48:53,751 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=437, PETRI_PLACES=84, PETRI_TRANSITIONS=64} [2021-10-15 19:48:53,751 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 66 predicate places. [2021-10-15 19:48:53,752 INFO L470 AbstractCegarLoop]: Abstraction has has 84 places, 64 transitions, 437 flow [2021-10-15 19:48:53,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 5.277777777777778) internal successors, (190), 36 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:53,752 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:53,752 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:53,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:53,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:53,970 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:53,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:53,970 INFO L82 PathProgramCache]: Analyzing trace with hash -132219249, now seen corresponding path program 5 times [2021-10-15 19:48:53,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:53,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493801287] [2021-10-15 19:48:53,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:53,971 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:54,069 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-15 19:48:54,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:54,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493801287] [2021-10-15 19:48:54,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493801287] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:54,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912032533] [2021-10-15 19:48:54,071 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-15 19:48:54,071 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:54,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:54,072 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:54,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-15 19:48:54,267 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-10-15 19:48:54,267 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:48:54,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 19:48:54,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:54,395 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-15 19:48:54,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912032533] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:54,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:54,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-15 19:48:54,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440433030] [2021-10-15 19:48:54,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-15 19:48:54,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:54,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-15 19:48:54,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2021-10-15 19:48:54,398 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:48:54,398 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 64 transitions, 437 flow. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:54,399 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:54,399 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:48:54,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:54,543 INFO L129 PetriNetUnfolder]: 5/72 cut-off events. [2021-10-15 19:48:54,543 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2021-10-15 19:48:54,544 INFO L84 FinitePrefix]: Finished finitePrefix Result has 306 conditions, 72 events. 5/72 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 91 event pairs, 0 based on Foata normal form. 3/73 useless extension candidates. Maximal degree in co-relation 277. Up to 14 conditions per place. [2021-10-15 19:48:54,544 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 28 selfloop transitions, 22 changer transitions 14/67 dead transitions. [2021-10-15 19:48:54,545 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 67 transitions, 558 flow [2021-10-15 19:48:54,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-15 19:48:54,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-15 19:48:54,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 139 transitions. [2021-10-15 19:48:54,547 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.40762463343108507 [2021-10-15 19:48:54,547 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 139 transitions. [2021-10-15 19:48:54,547 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 139 transitions. [2021-10-15 19:48:54,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:54,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 139 transitions. [2021-10-15 19:48:54,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 12.636363636363637) internal successors, (139), 11 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:54,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:54,550 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 31.0) internal successors, (372), 12 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:54,550 INFO L186 Difference]: Start difference. First operand has 84 places, 64 transitions, 437 flow. Second operand 11 states and 139 transitions. [2021-10-15 19:48:54,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 67 transitions, 558 flow [2021-10-15 19:48:54,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 67 transitions, 508 flow, removed 9 selfloop flow, removed 9 redundant places. [2021-10-15 19:48:54,554 INFO L242 Difference]: Finished difference. Result has 77 places, 45 transitions, 291 flow [2021-10-15 19:48:54,555 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=297, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=291, PETRI_PLACES=77, PETRI_TRANSITIONS=45} [2021-10-15 19:48:54,555 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 59 predicate places. [2021-10-15 19:48:54,555 INFO L470 AbstractCegarLoop]: Abstraction has has 77 places, 45 transitions, 291 flow [2021-10-15 19:48:54,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:54,555 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:54,555 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:54,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:54,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:54,756 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:54,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:54,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1292373713, now seen corresponding path program 6 times [2021-10-15 19:48:54,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:54,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226948605] [2021-10-15 19:48:54,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:54,757 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:54,821 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-15 19:48:54,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:54,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226948605] [2021-10-15 19:48:54,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226948605] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:54,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [174458910] [2021-10-15 19:48:54,822 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-15 19:48:54,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:54,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:54,824 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:54,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-15 19:48:55,024 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-10-15 19:48:55,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:48:55,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-15 19:48:55,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-15 19:48:55,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [174458910] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:55,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:55,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-15 19:48:55,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640001621] [2021-10-15 19:48:55,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-15 19:48:55,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:55,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-15 19:48:55,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2021-10-15 19:48:55,160 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:48:55,160 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 45 transitions, 291 flow. Second operand has 13 states, 13 states have (on average 9.923076923076923) internal successors, (129), 13 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:55,161 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:55,161 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:48:55,161 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:55,320 INFO L129 PetriNetUnfolder]: 5/43 cut-off events. [2021-10-15 19:48:55,320 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2021-10-15 19:48:55,320 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 43 events. 5/43 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 2/43 useless extension candidates. Maximal degree in co-relation 150. Up to 10 conditions per place. [2021-10-15 19:48:55,321 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 19 selfloop transitions, 21 changer transitions 0/43 dead transitions. [2021-10-15 19:48:55,321 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 43 transitions, 354 flow [2021-10-15 19:48:55,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-10-15 19:48:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-10-15 19:48:55,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 125 transitions. [2021-10-15 19:48:55,324 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.33602150537634407 [2021-10-15 19:48:55,324 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 125 transitions. [2021-10-15 19:48:55,324 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 125 transitions. [2021-10-15 19:48:55,325 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:55,325 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 125 transitions. [2021-10-15 19:48:55,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 10.416666666666666) internal successors, (125), 12 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) [2021-10-15 19:48:55,326 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 31.0) internal successors, (403), 13 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:55,327 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 31.0) internal successors, (403), 13 states have internal predecessors, (403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:55,327 INFO L186 Difference]: Start difference. First operand has 77 places, 45 transitions, 291 flow. Second operand 12 states and 125 transitions. [2021-10-15 19:48:55,327 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 43 transitions, 354 flow [2021-10-15 19:48:55,328 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 43 transitions, 286 flow, removed 19 selfloop flow, removed 16 redundant places. [2021-10-15 19:48:55,330 INFO L242 Difference]: Finished difference. Result has 56 places, 41 transitions, 251 flow [2021-10-15 19:48:55,330 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=251, PETRI_PLACES=56, PETRI_TRANSITIONS=41} [2021-10-15 19:48:55,331 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 38 predicate places. [2021-10-15 19:48:55,331 INFO L470 AbstractCegarLoop]: Abstraction has has 56 places, 41 transitions, 251 flow [2021-10-15 19:48:55,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.923076923076923) internal successors, (129), 13 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:55,331 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:55,331 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:55,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:55,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:55,548 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:55,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:55,548 INFO L82 PathProgramCache]: Analyzing trace with hash 2033315503, now seen corresponding path program 2 times [2021-10-15 19:48:55,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:55,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335775418] [2021-10-15 19:48:55,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:55,549 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:55,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-15 19:48:55,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:55,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335775418] [2021-10-15 19:48:55,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335775418] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:55,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [856725862] [2021-10-15 19:48:55,711 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 19:48:55,711 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:55,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:55,712 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:55,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-15 19:48:55,910 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-15 19:48:55,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:48:55,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-15 19:48:55,913 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:56,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-10-15 19:48:56,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:56,086 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-15 19:48:56,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2021-10-15 19:48:56,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:56,151 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-15 19:48:56,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2021-10-15 19:48:56,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-10-15 19:48:56,231 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-15 19:48:56,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [856725862] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:56,232 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:48:56,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2021-10-15 19:48:56,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708174547] [2021-10-15 19:48:56,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-15 19:48:56,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:48:56,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-15 19:48:56,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2021-10-15 19:48:56,234 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 31 [2021-10-15 19:48:56,234 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 41 transitions, 251 flow. Second operand has 18 states, 18 states have (on average 11.333333333333334) internal successors, (204), 18 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:56,234 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:48:56,234 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 31 [2021-10-15 19:48:56,234 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:48:56,433 INFO L129 PetriNetUnfolder]: 4/42 cut-off events. [2021-10-15 19:48:56,433 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2021-10-15 19:48:56,433 INFO L84 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 42 events. 4/42 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 117. Up to 14 conditions per place. [2021-10-15 19:48:56,434 INFO L132 encePairwiseOnDemand]: 21/31 looper letters, 19 selfloop transitions, 19 changer transitions 0/42 dead transitions. [2021-10-15 19:48:56,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 42 transitions, 333 flow [2021-10-15 19:48:56,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-10-15 19:48:56,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-15 19:48:56,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 183 transitions. [2021-10-15 19:48:56,435 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3689516129032258 [2021-10-15 19:48:56,436 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 183 transitions. [2021-10-15 19:48:56,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 183 transitions. [2021-10-15 19:48:56,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:48:56,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 183 transitions. [2021-10-15 19:48:56,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 11.4375) internal successors, (183), 16 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) [2021-10-15 19:48:56,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 31.0) internal successors, (527), 17 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:56,438 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 31.0) internal successors, (527), 17 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:56,438 INFO L186 Difference]: Start difference. First operand has 56 places, 41 transitions, 251 flow. Second operand 16 states and 183 transitions. [2021-10-15 19:48:56,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 42 transitions, 333 flow [2021-10-15 19:48:56,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 42 transitions, 308 flow, removed 0 selfloop flow, removed 9 redundant places. [2021-10-15 19:48:56,442 INFO L242 Difference]: Finished difference. Result has 63 places, 42 transitions, 276 flow [2021-10-15 19:48:56,442 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=276, PETRI_PLACES=63, PETRI_TRANSITIONS=42} [2021-10-15 19:48:56,442 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 45 predicate places. [2021-10-15 19:48:56,442 INFO L470 AbstractCegarLoop]: Abstraction has has 63 places, 42 transitions, 276 flow [2021-10-15 19:48:56,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.333333333333334) internal successors, (204), 18 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:48:56,443 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:48:56,443 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:48:56,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-15 19:48:56,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-15 19:48:56,644 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:48:56,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:48:56,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1250534543, now seen corresponding path program 7 times [2021-10-15 19:48:56,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:48:56,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409117910] [2021-10-15 19:48:56,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:48:56,644 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:48:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:58,102 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:48:58,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:48:58,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409117910] [2021-10-15 19:48:58,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409117910] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:48:58,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594915284] [2021-10-15 19:48:58,103 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-15 19:48:58,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:48:58,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:48:58,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:48:58,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-15 19:48:58,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:48:58,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 52 conjunts are in the unsatisfiable core [2021-10-15 19:48:58,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:48:58,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:48:58,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-15 19:48:58,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:58,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:48:58,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:58,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-10-15 19:48:58,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:58,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:58,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:58,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 52 [2021-10-15 19:48:59,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:48:59,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 51 [2021-10-15 19:48:59,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,364 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:48:59,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 49 [2021-10-15 19:48:59,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 47 [2021-10-15 19:48:59,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:48:59,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:48:59,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 51 [2021-10-15 19:49:00,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:00,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:00,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:00,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:00,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 49 [2021-10-15 19:49:00,195 INFO L354 Elim1Store]: treesize reduction 114, result has 16.2 percent of original size [2021-10-15 19:49:00,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 54 treesize of output 47 [2021-10-15 19:49:00,386 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-10-15 19:49:00,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 46 [2021-10-15 19:49:00,433 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:00,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594915284] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:00,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:00,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 49 [2021-10-15 19:49:00,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470185083] [2021-10-15 19:49:00,434 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-10-15 19:49:00,434 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:00,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-10-15 19:49:00,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=2085, Unknown=0, NotChecked=0, Total=2352 [2021-10-15 19:49:00,437 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:49:00,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 42 transitions, 276 flow. Second operand has 49 states, 49 states have (on average 5.224489795918367) internal successors, (256), 49 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:00,438 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:00,438 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:49:00,438 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:01,910 INFO L129 PetriNetUnfolder]: 9/81 cut-off events. [2021-10-15 19:49:01,911 INFO L130 PetriNetUnfolder]: For 71/71 co-relation queries the response was YES. [2021-10-15 19:49:01,911 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 81 events. 9/81 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 120 event pairs, 0 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 170. Up to 37 conditions per place. [2021-10-15 19:49:01,912 INFO L132 encePairwiseOnDemand]: 16/31 looper letters, 37 selfloop transitions, 40 changer transitions 2/81 dead transitions. [2021-10-15 19:49:01,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 81 transitions, 699 flow [2021-10-15 19:49:01,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-10-15 19:49:01,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2021-10-15 19:49:01,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 218 transitions. [2021-10-15 19:49:01,921 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.18505942275042445 [2021-10-15 19:49:01,921 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 218 transitions. [2021-10-15 19:49:01,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 218 transitions. [2021-10-15 19:49:01,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:01,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 218 transitions. [2021-10-15 19:49:01,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 5.7368421052631575) internal successors, (218), 38 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:01,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 31.0) internal successors, (1209), 39 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:01,926 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 31.0) internal successors, (1209), 39 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:01,926 INFO L186 Difference]: Start difference. First operand has 63 places, 42 transitions, 276 flow. Second operand 38 states and 218 transitions. [2021-10-15 19:49:01,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 81 transitions, 699 flow [2021-10-15 19:49:01,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 81 transitions, 640 flow, removed 8 selfloop flow, removed 10 redundant places. [2021-10-15 19:49:01,931 INFO L242 Difference]: Finished difference. Result has 109 places, 75 transitions, 630 flow [2021-10-15 19:49:01,932 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=630, PETRI_PLACES=109, PETRI_TRANSITIONS=75} [2021-10-15 19:49:01,932 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 91 predicate places. [2021-10-15 19:49:01,932 INFO L470 AbstractCegarLoop]: Abstraction has has 109 places, 75 transitions, 630 flow [2021-10-15 19:49:01,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 5.224489795918367) internal successors, (256), 49 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:01,933 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:01,933 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:01,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:02,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-15 19:49:02,140 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:02,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:02,140 INFO L82 PathProgramCache]: Analyzing trace with hash 1466624367, now seen corresponding path program 8 times [2021-10-15 19:49:02,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:02,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456515122] [2021-10-15 19:49:02,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:02,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:02,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:02,235 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-15 19:49:02,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:02,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456515122] [2021-10-15 19:49:02,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456515122] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:02,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052451549] [2021-10-15 19:49:02,236 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 19:49:02,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:02,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:02,237 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:02,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-15 19:49:02,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-15 19:49:02,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:02,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-15 19:49:02,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:02,717 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-15 19:49:02,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052451549] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:02,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:02,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-10-15 19:49:02,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792073399] [2021-10-15 19:49:02,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-15 19:49:02,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:02,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-15 19:49:02,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-10-15 19:49:02,720 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:02,720 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 75 transitions, 630 flow. Second operand has 16 states, 16 states have (on average 9.6875) internal successors, (155), 16 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:02,721 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:02,721 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:02,721 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:02,985 INFO L129 PetriNetUnfolder]: 10/86 cut-off events. [2021-10-15 19:49:02,985 INFO L130 PetriNetUnfolder]: For 132/132 co-relation queries the response was YES. [2021-10-15 19:49:02,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 86 events. 10/86 cut-off events. For 132/132 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 2/84 useless extension candidates. Maximal degree in co-relation 441. Up to 18 conditions per place. [2021-10-15 19:49:02,986 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 31 selfloop transitions, 48 changer transitions 1/83 dead transitions. [2021-10-15 19:49:02,986 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 83 transitions, 856 flow [2021-10-15 19:49:02,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-15 19:49:02,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-15 19:49:02,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 175 transitions. [2021-10-15 19:49:02,991 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3763440860215054 [2021-10-15 19:49:02,991 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 175 transitions. [2021-10-15 19:49:02,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 175 transitions. [2021-10-15 19:49:02,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:02,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 175 transitions. [2021-10-15 19:49:02,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 11.666666666666666) internal successors, (175), 15 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:02,996 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 31.0) internal successors, (496), 16 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:02,997 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 31.0) internal successors, (496), 16 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:02,997 INFO L186 Difference]: Start difference. First operand has 109 places, 75 transitions, 630 flow. Second operand 15 states and 175 transitions. [2021-10-15 19:49:02,997 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 83 transitions, 856 flow [2021-10-15 19:49:03,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 83 transitions, 818 flow, removed 13 selfloop flow, removed 7 redundant places. [2021-10-15 19:49:03,004 INFO L242 Difference]: Finished difference. Result has 117 places, 79 transitions, 755 flow [2021-10-15 19:49:03,007 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=592, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=755, PETRI_PLACES=117, PETRI_TRANSITIONS=79} [2021-10-15 19:49:03,007 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 99 predicate places. [2021-10-15 19:49:03,007 INFO L470 AbstractCegarLoop]: Abstraction has has 117 places, 79 transitions, 755 flow [2021-10-15 19:49:03,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.6875) internal successors, (155), 16 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:03,007 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:03,008 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:03,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:03,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:03,208 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:03,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:03,208 INFO L82 PathProgramCache]: Analyzing trace with hash 880380819, now seen corresponding path program 9 times [2021-10-15 19:49:03,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:03,209 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58018525] [2021-10-15 19:49:03,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:03,209 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-15 19:49:03,301 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:03,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58018525] [2021-10-15 19:49:03,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58018525] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:03,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859793969] [2021-10-15 19:49:03,301 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-15 19:49:03,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:03,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:03,304 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:03,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-15 19:49:03,692 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-15 19:49:03,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:03,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-15 19:49:03,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-15 19:49:03,871 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859793969] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:03,872 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:03,872 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 16 [2021-10-15 19:49:03,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088857595] [2021-10-15 19:49:03,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-15 19:49:03,872 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:03,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-15 19:49:03,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-10-15 19:49:03,873 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:03,874 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 79 transitions, 755 flow. Second operand has 16 states, 16 states have (on average 9.375) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:03,874 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:03,874 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:03,874 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:04,043 INFO L129 PetriNetUnfolder]: 5/70 cut-off events. [2021-10-15 19:49:04,043 INFO L130 PetriNetUnfolder]: For 166/166 co-relation queries the response was YES. [2021-10-15 19:49:04,044 INFO L84 FinitePrefix]: Finished finitePrefix Result has 426 conditions, 70 events. 5/70 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 57 event pairs, 0 based on Foata normal form. 2/70 useless extension candidates. Maximal degree in co-relation 347. Up to 14 conditions per place. [2021-10-15 19:49:04,044 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 27 selfloop transitions, 20 changer transitions 20/70 dead transitions. [2021-10-15 19:49:04,044 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 70 transitions, 792 flow [2021-10-15 19:49:04,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-15 19:49:04,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-15 19:49:04,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 160 transitions. [2021-10-15 19:49:04,051 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3970223325062035 [2021-10-15 19:49:04,051 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 160 transitions. [2021-10-15 19:49:04,051 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 160 transitions. [2021-10-15 19:49:04,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:04,052 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 160 transitions. [2021-10-15 19:49:04,052 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 12.307692307692308) internal successors, (160), 13 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:04,054 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 31.0) internal successors, (434), 14 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:04,054 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 31.0) internal successors, (434), 14 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:04,054 INFO L186 Difference]: Start difference. First operand has 117 places, 79 transitions, 755 flow. Second operand 13 states and 160 transitions. [2021-10-15 19:49:04,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 70 transitions, 792 flow [2021-10-15 19:49:04,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 70 transitions, 683 flow, removed 18 selfloop flow, removed 18 redundant places. [2021-10-15 19:49:04,088 INFO L242 Difference]: Finished difference. Result has 102 places, 48 transitions, 412 flow [2021-10-15 19:49:04,088 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=523, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=412, PETRI_PLACES=102, PETRI_TRANSITIONS=48} [2021-10-15 19:49:04,088 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 84 predicate places. [2021-10-15 19:49:04,089 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 48 transitions, 412 flow [2021-10-15 19:49:04,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 9.375) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:04,089 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:04,089 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:04,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:04,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:04,317 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:04,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:04,317 INFO L82 PathProgramCache]: Analyzing trace with hash 97262195, now seen corresponding path program 3 times [2021-10-15 19:49:04,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:04,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045335397] [2021-10-15 19:49:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:04,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:04,756 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 7 proven. 31 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-15 19:49:04,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:04,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045335397] [2021-10-15 19:49:04,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045335397] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:04,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957568235] [2021-10-15 19:49:04,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-15 19:49:04,756 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:04,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:04,758 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:04,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-15 19:49:05,171 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-15 19:49:05,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:05,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2021-10-15 19:49:05,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:05,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-15 19:49:05,449 INFO L354 Elim1Store]: treesize reduction 55, result has 16.7 percent of original size [2021-10-15 19:49:05,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 36 [2021-10-15 19:49:05,567 INFO L354 Elim1Store]: treesize reduction 34, result has 48.5 percent of original size [2021-10-15 19:49:05,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 59 [2021-10-15 19:49:05,858 INFO L354 Elim1Store]: treesize reduction 34, result has 48.5 percent of original size [2021-10-15 19:49:05,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 61 treesize of output 64 [2021-10-15 19:49:06,331 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-15 19:49:06,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 58 [2021-10-15 19:49:06,752 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 21 proven. 31 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-15 19:49:06,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957568235] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:06,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:06,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 21] total 31 [2021-10-15 19:49:06,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329649879] [2021-10-15 19:49:06,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-15 19:49:06,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:06,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-15 19:49:06,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2021-10-15 19:49:06,754 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:06,754 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 48 transitions, 412 flow. Second operand has 31 states, 31 states have (on average 9.03225806451613) internal successors, (280), 31 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:06,754 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:06,754 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:06,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:08,481 INFO L129 PetriNetUnfolder]: 6/63 cut-off events. [2021-10-15 19:49:08,481 INFO L130 PetriNetUnfolder]: For 146/146 co-relation queries the response was YES. [2021-10-15 19:49:08,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 357 conditions, 63 events. 6/63 cut-off events. For 146/146 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 1/62 useless extension candidates. Maximal degree in co-relation 299. Up to 14 conditions per place. [2021-10-15 19:49:08,482 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 15 selfloop transitions, 39 changer transitions 6/63 dead transitions. [2021-10-15 19:49:08,482 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 63 transitions, 669 flow [2021-10-15 19:49:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-15 19:49:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-15 19:49:08,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 288 transitions. [2021-10-15 19:49:08,488 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.28152492668621704 [2021-10-15 19:49:08,488 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 288 transitions. [2021-10-15 19:49:08,488 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 288 transitions. [2021-10-15 19:49:08,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:08,489 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 288 transitions. [2021-10-15 19:49:08,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 8.727272727272727) internal successors, (288), 33 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:08,492 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 31.0) internal successors, (1054), 34 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:08,493 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 31.0) internal successors, (1054), 34 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:08,493 INFO L186 Difference]: Start difference. First operand has 102 places, 48 transitions, 412 flow. Second operand 33 states and 288 transitions. [2021-10-15 19:49:08,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 63 transitions, 669 flow [2021-10-15 19:49:08,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 63 transitions, 548 flow, removed 25 selfloop flow, removed 19 redundant places. [2021-10-15 19:49:08,501 INFO L242 Difference]: Finished difference. Result has 96 places, 56 transitions, 500 flow [2021-10-15 19:49:08,501 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=500, PETRI_PLACES=96, PETRI_TRANSITIONS=56} [2021-10-15 19:49:08,502 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 78 predicate places. [2021-10-15 19:49:08,502 INFO L470 AbstractCegarLoop]: Abstraction has has 96 places, 56 transitions, 500 flow [2021-10-15 19:49:08,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.03225806451613) internal successors, (280), 31 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:08,502 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:08,503 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:08,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:08,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-15 19:49:08,724 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:08,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:08,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1118330549, now seen corresponding path program 10 times [2021-10-15 19:49:08,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:08,724 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017925436] [2021-10-15 19:49:08,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:08,724 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:11,121 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:11,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:11,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017925436] [2021-10-15 19:49:11,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017925436] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:11,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649658335] [2021-10-15 19:49:11,121 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-15 19:49:11,121 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:11,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:11,122 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:11,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-15 19:49:11,463 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-15 19:49:11,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:11,465 WARN L261 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 64 conjunts are in the unsatisfiable core [2021-10-15 19:49:11,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:11,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:49:11,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-15 19:49:11,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:49:11,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-10-15 19:49:11,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-10-15 19:49:11,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:11,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-10-15 19:49:12,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,372 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:12,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 63 [2021-10-15 19:49:12,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,668 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:12,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 66 [2021-10-15 19:49:12,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:12,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:12,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 69 [2021-10-15 19:49:13,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 59 [2021-10-15 19:49:13,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,539 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:13,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 63 [2021-10-15 19:49:13,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,715 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:13,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 66 [2021-10-15 19:49:13,922 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:13,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:13,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 73 [2021-10-15 19:49:14,237 INFO L354 Elim1Store]: treesize reduction 152, result has 16.0 percent of original size [2021-10-15 19:49:14,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 78 treesize of output 62 [2021-10-15 19:49:14,503 INFO L354 Elim1Store]: treesize reduction 48, result has 2.0 percent of original size [2021-10-15 19:49:14,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 94 treesize of output 54 [2021-10-15 19:49:14,570 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:14,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649658335] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:14,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:14,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 33] total 62 [2021-10-15 19:49:14,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697430886] [2021-10-15 19:49:14,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-10-15 19:49:14,571 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:14,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-10-15 19:49:14,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=453, Invalid=3329, Unknown=0, NotChecked=0, Total=3782 [2021-10-15 19:49:14,574 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:49:14,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 56 transitions, 500 flow. Second operand has 62 states, 62 states have (on average 5.193548387096774) internal successors, (322), 62 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:14,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:14,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:49:14,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:16,748 INFO L129 PetriNetUnfolder]: 13/112 cut-off events. [2021-10-15 19:49:16,748 INFO L130 PetriNetUnfolder]: For 223/223 co-relation queries the response was YES. [2021-10-15 19:49:16,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 112 events. 13/112 cut-off events. For 223/223 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 219 event pairs, 0 based on Foata normal form. 2/111 useless extension candidates. Maximal degree in co-relation 494. Up to 50 conditions per place. [2021-10-15 19:49:16,749 INFO L132 encePairwiseOnDemand]: 16/31 looper letters, 53 selfloop transitions, 53 changer transitions 2/110 dead transitions. [2021-10-15 19:49:16,750 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 110 transitions, 1243 flow [2021-10-15 19:49:16,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-10-15 19:49:16,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2021-10-15 19:49:16,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 260 transitions. [2021-10-15 19:49:16,754 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.182328190743338 [2021-10-15 19:49:16,754 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 260 transitions. [2021-10-15 19:49:16,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 260 transitions. [2021-10-15 19:49:16,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:16,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 260 transitions. [2021-10-15 19:49:16,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 5.6521739130434785) internal successors, (260), 46 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:16,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 31.0) internal successors, (1457), 47 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:16,759 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 31.0) internal successors, (1457), 47 states have internal predecessors, (1457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:16,760 INFO L186 Difference]: Start difference. First operand has 96 places, 56 transitions, 500 flow. Second operand 46 states and 260 transitions. [2021-10-15 19:49:16,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 110 transitions, 1243 flow [2021-10-15 19:49:16,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 110 transitions, 1058 flow, removed 39 selfloop flow, removed 25 redundant places. [2021-10-15 19:49:16,768 INFO L242 Difference]: Finished difference. Result has 136 places, 100 transitions, 1018 flow [2021-10-15 19:49:16,768 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=1018, PETRI_PLACES=136, PETRI_TRANSITIONS=100} [2021-10-15 19:49:16,768 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 118 predicate places. [2021-10-15 19:49:16,769 INFO L470 AbstractCegarLoop]: Abstraction has has 136 places, 100 transitions, 1018 flow [2021-10-15 19:49:16,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 5.193548387096774) internal successors, (322), 62 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:16,769 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:16,769 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:16,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:16,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-10-15 19:49:16,984 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:16,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:16,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1027067351, now seen corresponding path program 11 times [2021-10-15 19:49:16,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:16,984 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048767766] [2021-10-15 19:49:16,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:16,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:16,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:17,097 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 18 proven. 23 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-15 19:49:17,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:17,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048767766] [2021-10-15 19:49:17,098 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048767766] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:17,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471066629] [2021-10-15 19:49:17,098 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-15 19:49:17,099 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:17,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:17,104 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:17,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-10-15 19:49:17,759 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-10-15 19:49:17,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:17,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-15 19:49:17,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:17,961 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-10-15 19:49:17,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471066629] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:17,962 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:17,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-10-15 19:49:17,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752995683] [2021-10-15 19:49:17,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-15 19:49:17,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:17,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-15 19:49:17,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2021-10-15 19:49:17,964 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:17,965 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 100 transitions, 1018 flow. Second operand has 19 states, 19 states have (on average 9.31578947368421) internal successors, (177), 19 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:17,965 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:17,965 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:17,965 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:18,182 INFO L129 PetriNetUnfolder]: 7/109 cut-off events. [2021-10-15 19:49:18,182 INFO L130 PetriNetUnfolder]: For 225/225 co-relation queries the response was YES. [2021-10-15 19:49:18,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 109 events. 7/109 cut-off events. For 225/225 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 171 event pairs, 0 based on Foata normal form. 3/110 useless extension candidates. Maximal degree in co-relation 593. Up to 24 conditions per place. [2021-10-15 19:49:18,184 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 44 selfloop transitions, 32 changer transitions 24/103 dead transitions. [2021-10-15 19:49:18,184 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 139 places, 103 transitions, 1182 flow [2021-10-15 19:49:18,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-15 19:49:18,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-10-15 19:49:18,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 191 transitions. [2021-10-15 19:49:18,186 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.410752688172043 [2021-10-15 19:49:18,186 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 191 transitions. [2021-10-15 19:49:18,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 191 transitions. [2021-10-15 19:49:18,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:18,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 191 transitions. [2021-10-15 19:49:18,187 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 12.733333333333333) internal successors, (191), 15 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:18,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 31.0) internal successors, (496), 16 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:18,189 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 31.0) internal successors, (496), 16 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:18,189 INFO L186 Difference]: Start difference. First operand has 136 places, 100 transitions, 1018 flow. Second operand 15 states and 191 transitions. [2021-10-15 19:49:18,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 139 places, 103 transitions, 1182 flow [2021-10-15 19:49:18,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 103 transitions, 1126 flow, removed 20 selfloop flow, removed 12 redundant places. [2021-10-15 19:49:18,200 INFO L242 Difference]: Finished difference. Result has 129 places, 69 transitions, 671 flow [2021-10-15 19:49:18,200 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=671, PETRI_PLACES=129, PETRI_TRANSITIONS=69} [2021-10-15 19:49:18,201 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 111 predicate places. [2021-10-15 19:49:18,201 INFO L470 AbstractCegarLoop]: Abstraction has has 129 places, 69 transitions, 671 flow [2021-10-15 19:49:18,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.31578947368421) internal successors, (177), 19 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:18,201 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:18,201 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:18,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:18,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-10-15 19:49:18,428 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:18,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1565898487, now seen corresponding path program 12 times [2021-10-15 19:49:18,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:18,428 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617766669] [2021-10-15 19:49:18,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:18,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:18,540 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 9 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-15 19:49:18,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:18,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617766669] [2021-10-15 19:49:18,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617766669] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:18,541 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187521973] [2021-10-15 19:49:18,541 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-15 19:49:18,541 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:18,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:18,544 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:18,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-10-15 19:49:19,083 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-10-15 19:49:19,083 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:19,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-15 19:49:19,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:19,320 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 16 proven. 31 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-10-15 19:49:19,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187521973] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:19,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:19,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-10-15 19:49:19,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799079830] [2021-10-15 19:49:19,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-15 19:49:19,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:19,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-15 19:49:19,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-10-15 19:49:19,321 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:19,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 69 transitions, 671 flow. Second operand has 19 states, 19 states have (on average 9.68421052631579) internal successors, (184), 19 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:19,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:19,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:19,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:19,581 INFO L129 PetriNetUnfolder]: 7/66 cut-off events. [2021-10-15 19:49:19,584 INFO L130 PetriNetUnfolder]: For 191/191 co-relation queries the response was YES. [2021-10-15 19:49:19,585 INFO L84 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 66 events. 7/66 cut-off events. For 191/191 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 33 event pairs, 0 based on Foata normal form. 2/66 useless extension candidates. Maximal degree in co-relation 332. Up to 16 conditions per place. [2021-10-15 19:49:19,586 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 27 selfloop transitions, 35 changer transitions 0/65 dead transitions. [2021-10-15 19:49:19,586 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 65 transitions, 747 flow [2021-10-15 19:49:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-15 19:49:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-15 19:49:19,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 181 transitions. [2021-10-15 19:49:19,588 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.32437275985663083 [2021-10-15 19:49:19,588 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 181 transitions. [2021-10-15 19:49:19,589 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 181 transitions. [2021-10-15 19:49:19,589 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:19,589 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 181 transitions. [2021-10-15 19:49:19,590 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 10.055555555555555) internal successors, (181), 18 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:19,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 31.0) internal successors, (589), 19 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:19,591 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 31.0) internal successors, (589), 19 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:19,591 INFO L186 Difference]: Start difference. First operand has 129 places, 69 transitions, 671 flow. Second operand 18 states and 181 transitions. [2021-10-15 19:49:19,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 65 transitions, 747 flow [2021-10-15 19:49:19,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 65 transitions, 645 flow, removed 29 selfloop flow, removed 27 redundant places. [2021-10-15 19:49:19,599 INFO L242 Difference]: Finished difference. Result has 91 places, 63 transitions, 602 flow [2021-10-15 19:49:19,599 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=485, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=602, PETRI_PLACES=91, PETRI_TRANSITIONS=63} [2021-10-15 19:49:19,600 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 73 predicate places. [2021-10-15 19:49:19,600 INFO L470 AbstractCegarLoop]: Abstraction has has 91 places, 63 transitions, 602 flow [2021-10-15 19:49:19,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 9.68421052631579) internal successors, (184), 19 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:19,600 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:19,601 INFO L254 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:19,638 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:19,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-10-15 19:49:19,818 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:19,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:19,818 INFO L82 PathProgramCache]: Analyzing trace with hash 775276721, now seen corresponding path program 13 times [2021-10-15 19:49:19,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:19,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1617306092] [2021-10-15 19:49:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:19,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:22,319 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:22,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:22,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1617306092] [2021-10-15 19:49:22,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1617306092] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:22,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825503249] [2021-10-15 19:49:22,320 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-15 19:49:22,320 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:22,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:22,321 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:22,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-10-15 19:49:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:22,811 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 78 conjunts are in the unsatisfiable core [2021-10-15 19:49:22,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:22,852 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-15 19:49:22,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:49:22,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:22,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:49:23,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-10-15 19:49:23,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-10-15 19:49:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 59 [2021-10-15 19:49:23,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:23,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 74 [2021-10-15 19:49:24,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,207 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:24,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 75 [2021-10-15 19:49:24,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,546 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 73 [2021-10-15 19:49:24,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,899 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:24,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:24,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 73 [2021-10-15 19:49:25,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:25,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 73 [2021-10-15 19:49:25,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 71 [2021-10-15 19:49:25,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,974 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:25,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:25,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 75 [2021-10-15 19:49:26,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,233 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 78 [2021-10-15 19:49:26,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:26,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 81 [2021-10-15 19:49:26,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:26,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:26,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 73 [2021-10-15 19:49:27,074 INFO L354 Elim1Store]: treesize reduction 190, result has 15.9 percent of original size [2021-10-15 19:49:27,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 74 treesize of output 69 [2021-10-15 19:49:27,358 INFO L354 Elim1Store]: treesize reduction 60, result has 1.6 percent of original size [2021-10-15 19:49:27,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 101 treesize of output 57 [2021-10-15 19:49:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:27,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825503249] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:27,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:27,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 40] total 75 [2021-10-15 19:49:27,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781347838] [2021-10-15 19:49:27,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-10-15 19:49:27,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:27,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-10-15 19:49:27,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=5170, Unknown=0, NotChecked=0, Total=5550 [2021-10-15 19:49:27,444 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:49:27,445 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 63 transitions, 602 flow. Second operand has 75 states, 75 states have (on average 5.173333333333333) internal successors, (388), 75 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:27,445 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:27,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:49:27,445 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:29,250 INFO L129 PetriNetUnfolder]: 14/120 cut-off events. [2021-10-15 19:49:29,250 INFO L130 PetriNetUnfolder]: For 424/424 co-relation queries the response was YES. [2021-10-15 19:49:29,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 708 conditions, 120 events. 14/120 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 211 event pairs, 0 based on Foata normal form. 1/117 useless extension candidates. Maximal degree in co-relation 349. Up to 31 conditions per place. [2021-10-15 19:49:29,251 INFO L132 encePairwiseOnDemand]: 17/31 looper letters, 27 selfloop transitions, 85 changer transitions 2/116 dead transitions. [2021-10-15 19:49:29,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 116 transitions, 1353 flow [2021-10-15 19:49:29,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-15 19:49:29,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2021-10-15 19:49:29,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 269 transitions. [2021-10-15 19:49:29,253 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.18077956989247312 [2021-10-15 19:49:29,253 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 269 transitions. [2021-10-15 19:49:29,253 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 269 transitions. [2021-10-15 19:49:29,254 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:29,254 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 269 transitions. [2021-10-15 19:49:29,254 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 5.604166666666667) internal successors, (269), 48 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:29,257 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 31.0) internal successors, (1519), 49 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:29,258 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 31.0) internal successors, (1519), 49 states have internal predecessors, (1519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:29,258 INFO L186 Difference]: Start difference. First operand has 91 places, 63 transitions, 602 flow. Second operand 48 states and 269 transitions. [2021-10-15 19:49:29,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 116 transitions, 1353 flow [2021-10-15 19:49:29,264 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 116 transitions, 1286 flow, removed 0 selfloop flow, removed 15 redundant places. [2021-10-15 19:49:29,267 INFO L242 Difference]: Finished difference. Result has 135 places, 108 transitions, 1274 flow [2021-10-15 19:49:29,268 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=559, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=1274, PETRI_PLACES=135, PETRI_TRANSITIONS=108} [2021-10-15 19:49:29,268 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 117 predicate places. [2021-10-15 19:49:29,268 INFO L470 AbstractCegarLoop]: Abstraction has has 135 places, 108 transitions, 1274 flow [2021-10-15 19:49:29,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 5.173333333333333) internal successors, (388), 75 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:29,269 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:29,269 INFO L254 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:29,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:29,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-10-15 19:49:29,483 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:29,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:29,484 INFO L82 PathProgramCache]: Analyzing trace with hash 2064820435, now seen corresponding path program 14 times [2021-10-15 19:49:29,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:29,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093079040] [2021-10-15 19:49:29,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:29,484 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:29,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:29,601 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 27 proven. 34 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-15 19:49:29,601 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:29,601 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093079040] [2021-10-15 19:49:29,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093079040] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:29,602 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050994299] [2021-10-15 19:49:29,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 19:49:29,602 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:29,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:29,603 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:29,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-15 19:49:30,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-15 19:49:30,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:30,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-15 19:49:30,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2021-10-15 19:49:30,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050994299] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:30,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:30,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-10-15 19:49:30,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818703261] [2021-10-15 19:49:30,475 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-15 19:49:30,475 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:30,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-15 19:49:30,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2021-10-15 19:49:30,476 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:30,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 108 transitions, 1274 flow. Second operand has 22 states, 22 states have (on average 9.272727272727273) internal successors, (204), 22 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:30,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:30,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:30,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:30,728 INFO L129 PetriNetUnfolder]: 9/129 cut-off events. [2021-10-15 19:49:30,729 INFO L130 PetriNetUnfolder]: For 555/555 co-relation queries the response was YES. [2021-10-15 19:49:30,729 INFO L84 FinitePrefix]: Finished finitePrefix Result has 866 conditions, 129 events. 9/129 cut-off events. For 555/555 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 217 event pairs, 0 based on Foata normal form. 3/129 useless extension candidates. Maximal degree in co-relation 830. Up to 31 conditions per place. [2021-10-15 19:49:30,730 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 53 selfloop transitions, 38 changer transitions 29/123 dead transitions. [2021-10-15 19:49:30,731 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 123 transitions, 1661 flow [2021-10-15 19:49:30,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-15 19:49:30,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-15 19:49:30,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 218 transitions. [2021-10-15 19:49:30,733 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.41366223908918404 [2021-10-15 19:49:30,733 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 218 transitions. [2021-10-15 19:49:30,733 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 218 transitions. [2021-10-15 19:49:30,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:30,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 218 transitions. [2021-10-15 19:49:30,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 12.823529411764707) internal successors, (218), 17 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:30,735 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 31.0) internal successors, (558), 18 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:30,736 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 31.0) internal successors, (558), 18 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:30,736 INFO L186 Difference]: Start difference. First operand has 135 places, 108 transitions, 1274 flow. Second operand 17 states and 218 transitions. [2021-10-15 19:49:30,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 123 transitions, 1661 flow [2021-10-15 19:49:30,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 123 transitions, 1611 flow, removed 14 selfloop flow, removed 14 redundant places. [2021-10-15 19:49:30,752 INFO L242 Difference]: Finished difference. Result has 133 places, 78 transitions, 982 flow [2021-10-15 19:49:30,752 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1013, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=982, PETRI_PLACES=133, PETRI_TRANSITIONS=78} [2021-10-15 19:49:30,752 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 115 predicate places. [2021-10-15 19:49:30,753 INFO L470 AbstractCegarLoop]: Abstraction has has 133 places, 78 transitions, 982 flow [2021-10-15 19:49:30,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.272727272727273) internal successors, (204), 22 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:30,753 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:30,753 INFO L254 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:30,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:30,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:30,968 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:30,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:30,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1449329199, now seen corresponding path program 15 times [2021-10-15 19:49:30,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:30,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920702089] [2021-10-15 19:49:30,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:30,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:30,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:31,105 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 16 proven. 55 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-15 19:49:31,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:31,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920702089] [2021-10-15 19:49:31,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920702089] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:31,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890098125] [2021-10-15 19:49:31,105 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-15 19:49:31,106 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:31,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:31,106 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:31,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-10-15 19:49:31,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-10-15 19:49:31,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:31,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-15 19:49:31,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:32,039 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 25 proven. 46 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-10-15 19:49:32,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890098125] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:32,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:32,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 22 [2021-10-15 19:49:32,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103634219] [2021-10-15 19:49:32,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-15 19:49:32,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:32,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-15 19:49:32,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2021-10-15 19:49:32,041 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:32,041 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 78 transitions, 982 flow. Second operand has 22 states, 22 states have (on average 9.681818181818182) internal successors, (213), 22 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:32,041 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:32,041 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:32,041 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:32,310 INFO L129 PetriNetUnfolder]: 9/79 cut-off events. [2021-10-15 19:49:32,310 INFO L130 PetriNetUnfolder]: For 603/603 co-relation queries the response was YES. [2021-10-15 19:49:32,310 INFO L84 FinitePrefix]: Finished finitePrefix Result has 588 conditions, 79 events. 9/79 cut-off events. For 603/603 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 49 event pairs, 0 based on Foata normal form. 2/78 useless extension candidates. Maximal degree in co-relation 557. Up to 23 conditions per place. [2021-10-15 19:49:32,311 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 34 selfloop transitions, 41 changer transitions 0/78 dead transitions. [2021-10-15 19:49:32,311 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 78 transitions, 1120 flow [2021-10-15 19:49:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-15 19:49:32,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-10-15 19:49:32,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 210 transitions. [2021-10-15 19:49:32,313 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3225806451612903 [2021-10-15 19:49:32,313 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 210 transitions. [2021-10-15 19:49:32,313 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 210 transitions. [2021-10-15 19:49:32,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:32,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 210 transitions. [2021-10-15 19:49:32,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 10.0) internal successors, (210), 21 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:32,316 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 31.0) internal successors, (682), 22 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:32,316 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 31.0) internal successors, (682), 22 states have internal predecessors, (682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:32,316 INFO L186 Difference]: Start difference. First operand has 133 places, 78 transitions, 982 flow. Second operand 21 states and 210 transitions. [2021-10-15 19:49:32,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 78 transitions, 1120 flow [2021-10-15 19:49:32,323 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 78 transitions, 1030 flow, removed 19 selfloop flow, removed 17 redundant places. [2021-10-15 19:49:32,325 INFO L242 Difference]: Finished difference. Result has 102 places, 72 transitions, 944 flow [2021-10-15 19:49:32,326 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=782, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=944, PETRI_PLACES=102, PETRI_TRANSITIONS=72} [2021-10-15 19:49:32,326 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 84 predicate places. [2021-10-15 19:49:32,326 INFO L470 AbstractCegarLoop]: Abstraction has has 102 places, 72 transitions, 944 flow [2021-10-15 19:49:32,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 9.681818181818182) internal successors, (213), 22 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:32,327 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:32,327 INFO L254 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:32,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:32,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2021-10-15 19:49:32,552 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:32,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:32,552 INFO L82 PathProgramCache]: Analyzing trace with hash 589849727, now seen corresponding path program 4 times [2021-10-15 19:49:32,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:32,552 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804242558] [2021-10-15 19:49:32,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:32,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 16 proven. 71 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-15 19:49:32,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:32,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804242558] [2021-10-15 19:49:32,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804242558] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:32,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881043249] [2021-10-15 19:49:32,961 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-15 19:49:32,962 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:32,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:32,963 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:32,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-10-15 19:49:33,604 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-15 19:49:33,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:33,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-15 19:49:33,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:33,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-15 19:49:33,819 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-15 19:49:33,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-15 19:49:33,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:33,976 INFO L354 Elim1Store]: treesize reduction 69, result has 13.8 percent of original size [2021-10-15 19:49:33,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:34,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:34,107 INFO L354 Elim1Store]: treesize reduction 69, result has 13.8 percent of original size [2021-10-15 19:49:34,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:34,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:34,203 INFO L354 Elim1Store]: treesize reduction 69, result has 13.8 percent of original size [2021-10-15 19:49:34,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:34,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:34,326 INFO L354 Elim1Store]: treesize reduction 69, result has 13.8 percent of original size [2021-10-15 19:49:34,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:34,414 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-10-15 19:49:34,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 13 [2021-10-15 19:49:34,482 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 23 proven. 62 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-15 19:49:34,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881043249] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:34,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:34,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 33 [2021-10-15 19:49:34,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78186911] [2021-10-15 19:49:34,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-15 19:49:34,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:34,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-15 19:49:34,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=897, Unknown=0, NotChecked=0, Total=1056 [2021-10-15 19:49:34,485 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:34,486 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 72 transitions, 944 flow. Second operand has 33 states, 33 states have (on average 9.272727272727273) internal successors, (306), 33 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:34,486 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:34,486 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:34,486 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:37,405 INFO L129 PetriNetUnfolder]: 7/73 cut-off events. [2021-10-15 19:49:37,405 INFO L130 PetriNetUnfolder]: For 568/568 co-relation queries the response was YES. [2021-10-15 19:49:37,406 INFO L84 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 73 events. 7/73 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 32 event pairs, 0 based on Foata normal form. 0/71 useless extension candidates. Maximal degree in co-relation 405. Up to 20 conditions per place. [2021-10-15 19:49:37,407 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 20 selfloop transitions, 47 changer transitions 0/70 dead transitions. [2021-10-15 19:49:37,407 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 70 transitions, 1014 flow [2021-10-15 19:49:37,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-10-15 19:49:37,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2021-10-15 19:49:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 278 transitions. [2021-10-15 19:49:37,409 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.28024193548387094 [2021-10-15 19:49:37,409 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 278 transitions. [2021-10-15 19:49:37,409 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 278 transitions. [2021-10-15 19:49:37,410 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:37,410 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 278 transitions. [2021-10-15 19:49:37,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 8.6875) internal successors, (278), 32 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:37,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 31.0) internal successors, (1023), 33 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:37,413 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 31.0) internal successors, (1023), 33 states have internal predecessors, (1023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:37,413 INFO L186 Difference]: Start difference. First operand has 102 places, 72 transitions, 944 flow. Second operand 32 states and 278 transitions. [2021-10-15 19:49:37,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 70 transitions, 1014 flow [2021-10-15 19:49:37,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 70 transitions, 875 flow, removed 5 selfloop flow, removed 20 redundant places. [2021-10-15 19:49:37,421 INFO L242 Difference]: Finished difference. Result has 114 places, 70 transitions, 841 flow [2021-10-15 19:49:37,422 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=736, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=841, PETRI_PLACES=114, PETRI_TRANSITIONS=70} [2021-10-15 19:49:37,422 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 96 predicate places. [2021-10-15 19:49:37,422 INFO L470 AbstractCegarLoop]: Abstraction has has 114 places, 70 transitions, 841 flow [2021-10-15 19:49:37,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 9.272727272727273) internal successors, (306), 33 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:37,423 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:37,423 INFO L254 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:37,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:37,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:37,644 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:37,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:37,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1899679235, now seen corresponding path program 16 times [2021-10-15 19:49:37,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:37,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663102351] [2021-10-15 19:49:37,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:37,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:37,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:40,228 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:40,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:40,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663102351] [2021-10-15 19:49:40,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663102351] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:40,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766800612] [2021-10-15 19:49:40,228 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-15 19:49:40,228 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:40,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:40,229 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:40,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-10-15 19:49:40,921 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-15 19:49:40,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:40,923 WARN L261 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 90 conjunts are in the unsatisfiable core [2021-10-15 19:49:40,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:40,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-15 19:49:40,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:49:40,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:40,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:49:41,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-10-15 19:49:41,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2021-10-15 19:49:41,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 62 [2021-10-15 19:49:41,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 77 [2021-10-15 19:49:41,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:41,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 92 [2021-10-15 19:49:42,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:42,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:42,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 87 [2021-10-15 19:49:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,135 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:43,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 85 [2021-10-15 19:49:43,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,566 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:43,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:43,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 88 [2021-10-15 19:49:44,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,009 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:44,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 102 treesize of output 91 [2021-10-15 19:49:44,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:44,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:44,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 94 [2021-10-15 19:49:45,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 16 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 83 [2021-10-15 19:49:45,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:45,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 87 [2021-10-15 19:49:45,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:45,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 85 [2021-10-15 19:49:46,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,027 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:46,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 88 [2021-10-15 19:49:46,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,377 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:46,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2021-10-15 19:49:46,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,708 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:49:46,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:49:46,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 16 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 121 treesize of output 99 [2021-10-15 19:49:47,078 INFO L354 Elim1Store]: treesize reduction 228, result has 15.9 percent of original size [2021-10-15 19:49:47,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 81 treesize of output 79 [2021-10-15 19:49:47,374 INFO L354 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2021-10-15 19:49:47,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 102 treesize of output 58 [2021-10-15 19:49:47,454 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 123 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:49:47,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766800612] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:47,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:47,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 47] total 87 [2021-10-15 19:49:47,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460209945] [2021-10-15 19:49:47,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2021-10-15 19:49:47,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:47,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-10-15 19:49:47,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=7104, Unknown=0, NotChecked=0, Total=7482 [2021-10-15 19:49:47,458 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:49:47,458 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 70 transitions, 841 flow. Second operand has 87 states, 87 states have (on average 5.172413793103448) internal successors, (450), 87 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:47,459 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:47,459 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:49:47,459 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:49,740 INFO L129 PetriNetUnfolder]: 14/130 cut-off events. [2021-10-15 19:49:49,740 INFO L130 PetriNetUnfolder]: For 901/901 co-relation queries the response was YES. [2021-10-15 19:49:49,741 INFO L84 FinitePrefix]: Finished finitePrefix Result has 941 conditions, 130 events. 14/130 cut-off events. For 901/901 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 209 event pairs, 0 based on Foata normal form. 1/127 useless extension candidates. Maximal degree in co-relation 475. Up to 62 conditions per place. [2021-10-15 19:49:49,742 INFO L132 encePairwiseOnDemand]: 17/31 looper letters, 63 selfloop transitions, 59 changer transitions 2/126 dead transitions. [2021-10-15 19:49:49,742 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 126 transitions, 1812 flow [2021-10-15 19:49:49,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-10-15 19:49:49,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2021-10-15 19:49:49,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 290 transitions. [2021-10-15 19:49:49,743 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.17990074441687345 [2021-10-15 19:49:49,743 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 290 transitions. [2021-10-15 19:49:49,743 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 290 transitions. [2021-10-15 19:49:49,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:49,744 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 290 transitions. [2021-10-15 19:49:49,745 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 5.576923076923077) internal successors, (290), 52 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:49,748 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 31.0) internal successors, (1643), 53 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:49,748 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 31.0) internal successors, (1643), 53 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:49,748 INFO L186 Difference]: Start difference. First operand has 114 places, 70 transitions, 841 flow. Second operand 52 states and 290 transitions. [2021-10-15 19:49:49,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 126 transitions, 1812 flow [2021-10-15 19:49:49,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 126 transitions, 1365 flow, removed 6 selfloop flow, removed 30 redundant places. [2021-10-15 19:49:49,759 INFO L242 Difference]: Finished difference. Result has 171 places, 116 transitions, 1334 flow [2021-10-15 19:49:49,759 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=587, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=1334, PETRI_PLACES=171, PETRI_TRANSITIONS=116} [2021-10-15 19:49:49,760 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 153 predicate places. [2021-10-15 19:49:49,760 INFO L470 AbstractCegarLoop]: Abstraction has has 171 places, 116 transitions, 1334 flow [2021-10-15 19:49:49,760 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.172413793103448) internal successors, (450), 87 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:49,760 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:49,760 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:49,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:49,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:49,976 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:49,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:49,976 INFO L82 PathProgramCache]: Analyzing trace with hash -1916145985, now seen corresponding path program 17 times [2021-10-15 19:49:49,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:49,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513187280] [2021-10-15 19:49:49,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:49,976 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:50,135 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 25 proven. 75 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-15 19:49:50,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:50,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513187280] [2021-10-15 19:49:50,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513187280] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:50,136 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349933367] [2021-10-15 19:49:50,136 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-15 19:49:50,136 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:50,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:50,137 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:50,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-10-15 19:49:51,850 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-10-15 19:49:51,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:51,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-15 19:49:51,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 36 proven. 64 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-10-15 19:49:52,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349933367] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:52,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:52,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2021-10-15 19:49:52,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846036361] [2021-10-15 19:49:52,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-15 19:49:52,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:52,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-15 19:49:52,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2021-10-15 19:49:52,114 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:52,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 116 transitions, 1334 flow. Second operand has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:52,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:52,115 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:52,115 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:52,634 INFO L129 PetriNetUnfolder]: 16/140 cut-off events. [2021-10-15 19:49:52,634 INFO L130 PetriNetUnfolder]: For 782/782 co-relation queries the response was YES. [2021-10-15 19:49:52,635 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1003 conditions, 140 events. 16/140 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 254 event pairs, 0 based on Foata normal form. 2/137 useless extension candidates. Maximal degree in co-relation 949. Up to 39 conditions per place. [2021-10-15 19:49:52,637 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 48 selfloop transitions, 81 changer transitions 1/133 dead transitions. [2021-10-15 19:49:52,637 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 133 transitions, 1829 flow [2021-10-15 19:49:52,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-10-15 19:49:52,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2021-10-15 19:49:52,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 275 transitions. [2021-10-15 19:49:52,639 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3696236559139785 [2021-10-15 19:49:52,639 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 275 transitions. [2021-10-15 19:49:52,639 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 275 transitions. [2021-10-15 19:49:52,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:52,640 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 275 transitions. [2021-10-15 19:49:52,640 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 11.458333333333334) internal successors, (275), 24 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:52,642 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 31.0) internal successors, (775), 25 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:52,642 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 31.0) internal successors, (775), 25 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:52,642 INFO L186 Difference]: Start difference. First operand has 171 places, 116 transitions, 1334 flow. Second operand 24 states and 275 transitions. [2021-10-15 19:49:52,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 133 transitions, 1829 flow [2021-10-15 19:49:52,653 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 133 transitions, 1785 flow, removed 10 selfloop flow, removed 13 redundant places. [2021-10-15 19:49:52,657 INFO L242 Difference]: Finished difference. Result has 182 places, 125 transitions, 1656 flow [2021-10-15 19:49:52,658 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1290, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1656, PETRI_PLACES=182, PETRI_TRANSITIONS=125} [2021-10-15 19:49:52,658 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 164 predicate places. [2021-10-15 19:49:52,658 INFO L470 AbstractCegarLoop]: Abstraction has has 182 places, 125 transitions, 1656 flow [2021-10-15 19:49:52,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.68) internal successors, (242), 25 states have internal predecessors, (242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:52,658 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:52,659 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:52,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:52,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-10-15 19:49:52,872 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:52,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:52,872 INFO L82 PathProgramCache]: Analyzing trace with hash -177410273, now seen corresponding path program 18 times [2021-10-15 19:49:52,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:52,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875895125] [2021-10-15 19:49:52,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:52,872 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 38 proven. 47 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-15 19:49:53,024 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:53,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875895125] [2021-10-15 19:49:53,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875895125] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:53,024 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989585402] [2021-10-15 19:49:53,024 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-15 19:49:53,025 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:53,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:53,026 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:53,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-10-15 19:49:54,178 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-10-15 19:49:54,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:54,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-15 19:49:54,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:54,440 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 49 proven. 36 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-15 19:49:54,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989585402] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:54,440 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:54,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 25 [2021-10-15 19:49:54,440 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601014003] [2021-10-15 19:49:54,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-10-15 19:49:54,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:54,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-10-15 19:49:54,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2021-10-15 19:49:54,442 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:54,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 125 transitions, 1656 flow. Second operand has 25 states, 25 states have (on average 9.24) internal successors, (231), 25 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:54,442 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:54,442 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:54,442 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:54,715 INFO L129 PetriNetUnfolder]: 9/121 cut-off events. [2021-10-15 19:49:54,715 INFO L130 PetriNetUnfolder]: For 843/843 co-relation queries the response was YES. [2021-10-15 19:49:54,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 921 conditions, 121 events. 9/121 cut-off events. For 843/843 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 2/120 useless extension candidates. Maximal degree in co-relation 799. Up to 33 conditions per place. [2021-10-15 19:49:54,717 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 49 selfloop transitions, 33 changer transitions 35/120 dead transitions. [2021-10-15 19:49:54,717 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 120 transitions, 1736 flow [2021-10-15 19:49:54,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-15 19:49:54,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-10-15 19:49:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 239 transitions. [2021-10-15 19:49:54,718 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4057724957555178 [2021-10-15 19:49:54,718 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 239 transitions. [2021-10-15 19:49:54,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 239 transitions. [2021-10-15 19:49:54,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:54,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 239 transitions. [2021-10-15 19:49:54,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 12.578947368421053) internal successors, (239), 19 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:54,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 31.0) internal successors, (620), 20 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:54,723 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 31.0) internal successors, (620), 20 states have internal predecessors, (620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:54,723 INFO L186 Difference]: Start difference. First operand has 182 places, 125 transitions, 1656 flow. Second operand 19 states and 239 transitions. [2021-10-15 19:49:54,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 120 transitions, 1736 flow [2021-10-15 19:49:54,734 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 120 transitions, 1459 flow, removed 40 selfloop flow, removed 33 redundant places. [2021-10-15 19:49:54,736 INFO L242 Difference]: Finished difference. Result has 164 places, 79 transitions, 873 flow [2021-10-15 19:49:54,736 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1155, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=873, PETRI_PLACES=164, PETRI_TRANSITIONS=79} [2021-10-15 19:49:54,736 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 146 predicate places. [2021-10-15 19:49:54,736 INFO L470 AbstractCegarLoop]: Abstraction has has 164 places, 79 transitions, 873 flow [2021-10-15 19:49:54,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.24) internal successors, (231), 25 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:54,737 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:54,737 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:54,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-10-15 19:49:54,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-10-15 19:49:54,964 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:49:54,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:49:54,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1468815859, now seen corresponding path program 5 times [2021-10-15 19:49:54,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:49:54,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641229844] [2021-10-15 19:49:54,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:49:54,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:49:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:49:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 25 proven. 94 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-15 19:49:55,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:49:55,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641229844] [2021-10-15 19:49:55,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641229844] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:55,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499441127] [2021-10-15 19:49:55,453 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-15 19:49:55,453 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:49:55,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:49:55,456 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:49:55,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-10-15 19:49:57,639 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-10-15 19:49:57,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:49:57,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 35 conjunts are in the unsatisfiable core [2021-10-15 19:49:57,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:49:57,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-15 19:49:57,806 INFO L354 Elim1Store]: treesize reduction 31, result has 22.5 percent of original size [2021-10-15 19:49:57,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 27 [2021-10-15 19:49:58,103 INFO L354 Elim1Store]: treesize reduction 114, result has 15.6 percent of original size [2021-10-15 19:49:58,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:58,214 INFO L354 Elim1Store]: treesize reduction 114, result has 15.6 percent of original size [2021-10-15 19:49:58,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:58,542 INFO L354 Elim1Store]: treesize reduction 114, result has 15.6 percent of original size [2021-10-15 19:49:58,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:58,662 INFO L354 Elim1Store]: treesize reduction 114, result has 15.6 percent of original size [2021-10-15 19:49:58,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:58,819 INFO L354 Elim1Store]: treesize reduction 114, result has 15.6 percent of original size [2021-10-15 19:49:58,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 43 [2021-10-15 19:49:58,912 INFO L354 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2021-10-15 19:49:58,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 13 [2021-10-15 19:49:58,972 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 28 proven. 89 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-15 19:49:58,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499441127] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:49:58,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:49:58,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 18] total 36 [2021-10-15 19:49:58,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549459479] [2021-10-15 19:49:58,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-10-15 19:49:58,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:49:58,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-10-15 19:49:58,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2021-10-15 19:49:58,973 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:49:58,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 164 places, 79 transitions, 873 flow. Second operand has 36 states, 36 states have (on average 9.305555555555555) internal successors, (335), 36 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:58,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:49:58,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:49:58,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:49:59,802 INFO L129 PetriNetUnfolder]: 7/80 cut-off events. [2021-10-15 19:49:59,802 INFO L130 PetriNetUnfolder]: For 360/360 co-relation queries the response was YES. [2021-10-15 19:49:59,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 537 conditions, 80 events. 7/80 cut-off events. For 360/360 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 449. Up to 16 conditions per place. [2021-10-15 19:49:59,803 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 22 selfloop transitions, 52 changer transitions 0/77 dead transitions. [2021-10-15 19:49:59,804 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 77 transitions, 973 flow [2021-10-15 19:49:59,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-15 19:49:59,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-15 19:49:59,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 294 transitions. [2021-10-15 19:49:59,805 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.2873900293255132 [2021-10-15 19:49:59,805 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 294 transitions. [2021-10-15 19:49:59,805 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 294 transitions. [2021-10-15 19:49:59,805 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:49:59,805 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 294 transitions. [2021-10-15 19:49:59,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 8.909090909090908) internal successors, (294), 33 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:59,810 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 31.0) internal successors, (1054), 34 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:59,810 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 31.0) internal successors, (1054), 34 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:59,811 INFO L186 Difference]: Start difference. First operand has 164 places, 79 transitions, 873 flow. Second operand 33 states and 294 transitions. [2021-10-15 19:49:59,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 77 transitions, 973 flow [2021-10-15 19:49:59,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 77 transitions, 836 flow, removed 26 selfloop flow, removed 34 redundant places. [2021-10-15 19:49:59,818 INFO L242 Difference]: Finished difference. Result has 122 places, 77 transitions, 798 flow [2021-10-15 19:49:59,818 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=681, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=798, PETRI_PLACES=122, PETRI_TRANSITIONS=77} [2021-10-15 19:49:59,819 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 104 predicate places. [2021-10-15 19:49:59,819 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 77 transitions, 798 flow [2021-10-15 19:49:59,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 9.305555555555555) internal successors, (335), 36 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:49:59,819 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:49:59,819 INFO L254 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:49:59,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:00,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-10-15 19:50:00,036 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:50:00,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:00,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1328267249, now seen corresponding path program 19 times [2021-10-15 19:50:00,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:00,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793297905] [2021-10-15 19:50:00,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:00,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:00,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:04,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:04,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793297905] [2021-10-15 19:50:04,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793297905] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:04,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227188902] [2021-10-15 19:50:04,105 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-15 19:50:04,105 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:04,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:50:04,106 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:50:04,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-10-15 19:50:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:05,060 WARN L261 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 104 conjunts are in the unsatisfiable core [2021-10-15 19:50:05,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:05,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:50:05,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-15 19:50:05,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:50:05,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-10-15 19:50:05,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-10-15 19:50:05,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-10-15 19:50:05,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 71 [2021-10-15 19:50:05,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:05,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-10-15 19:50:06,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 78 treesize of output 95 [2021-10-15 19:50:06,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:06,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:06,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 99 [2021-10-15 19:50:07,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:07,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 97 [2021-10-15 19:50:07,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,763 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:07,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:07,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 100 [2021-10-15 19:50:08,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,216 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:08,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 97 [2021-10-15 19:50:08,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:08,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:08,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 100 [2021-10-15 19:50:09,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,172 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:09,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 103 [2021-10-15 19:50:09,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:09,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 22 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 95 [2021-10-15 19:50:10,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,053 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 99 [2021-10-15 19:50:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,369 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:10,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 102 [2021-10-15 19:50:10,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,724 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:10,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:10,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 109 [2021-10-15 19:50:11,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,111 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:11,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 110 [2021-10-15 19:50:11,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:11,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 116 [2021-10-15 19:50:11,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,851 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:11,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:11,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 22 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 117 [2021-10-15 19:50:12,274 INFO L354 Elim1Store]: treesize reduction 266, result has 15.8 percent of original size [2021-10-15 19:50:12,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 35 case distinctions, treesize of input 93 treesize of output 90 [2021-10-15 19:50:12,558 INFO L354 Elim1Store]: treesize reduction 84, result has 1.2 percent of original size [2021-10-15 19:50:12,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 21 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 114 treesize of output 62 [2021-10-15 19:50:12,664 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:12,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227188902] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:12,664 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:50:12,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 54] total 101 [2021-10-15 19:50:12,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291967500] [2021-10-15 19:50:12,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2021-10-15 19:50:12,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:12,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-10-15 19:50:12,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=893, Invalid=9207, Unknown=0, NotChecked=0, Total=10100 [2021-10-15 19:50:12,669 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:50:12,669 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 77 transitions, 798 flow. Second operand has 101 states, 101 states have (on average 5.148514851485149) internal successors, (520), 101 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:12,669 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:12,669 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:50:12,669 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:21,225 INFO L129 PetriNetUnfolder]: 24/203 cut-off events. [2021-10-15 19:50:21,226 INFO L130 PetriNetUnfolder]: For 1219/1219 co-relation queries the response was YES. [2021-10-15 19:50:21,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1375 conditions, 203 events. 24/203 cut-off events. For 1219/1219 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 485 event pairs, 0 based on Foata normal form. 5/200 useless extension candidates. Maximal degree in co-relation 858. Up to 68 conditions per place. [2021-10-15 19:50:21,228 INFO L132 encePairwiseOnDemand]: 16/31 looper letters, 71 selfloop transitions, 120 changer transitions 4/197 dead transitions. [2021-10-15 19:50:21,228 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 197 transitions, 2672 flow [2021-10-15 19:50:21,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-10-15 19:50:21,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2021-10-15 19:50:21,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 532 transitions. [2021-10-15 19:50:21,229 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.17511520737327188 [2021-10-15 19:50:21,229 INFO L72 ComplementDD]: Start complementDD. Operand 98 states and 532 transitions. [2021-10-15 19:50:21,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 98 states and 532 transitions. [2021-10-15 19:50:21,230 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:21,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 98 states and 532 transitions. [2021-10-15 19:50:21,231 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 99 states, 98 states have (on average 5.428571428571429) internal successors, (532), 98 states have internal predecessors, (532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:21,236 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 99 states, 99 states have (on average 31.0) internal successors, (3069), 99 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:21,237 INFO L81 ComplementDD]: Finished complementDD. Result has 99 states, 99 states have (on average 31.0) internal successors, (3069), 99 states have internal predecessors, (3069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:21,237 INFO L186 Difference]: Start difference. First operand has 122 places, 77 transitions, 798 flow. Second operand 98 states and 532 transitions. [2021-10-15 19:50:21,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 197 transitions, 2672 flow [2021-10-15 19:50:21,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 197 transitions, 2126 flow, removed 10 selfloop flow, removed 30 redundant places. [2021-10-15 19:50:21,248 INFO L242 Difference]: Finished difference. Result has 224 places, 187 transitions, 2143 flow [2021-10-15 19:50:21,248 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=583, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=10, PETRI_DIFFERENCE_SUBTRAHEND_STATES=98, PETRI_FLOW=2143, PETRI_PLACES=224, PETRI_TRANSITIONS=187} [2021-10-15 19:50:21,248 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 206 predicate places. [2021-10-15 19:50:21,248 INFO L470 AbstractCegarLoop]: Abstraction has has 224 places, 187 transitions, 2143 flow [2021-10-15 19:50:21,249 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 5.148514851485149) internal successors, (520), 101 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:21,249 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:21,249 INFO L254 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:21,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:21,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:21,449 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:50:21,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:21,450 INFO L82 PathProgramCache]: Analyzing trace with hash 960464111, now seen corresponding path program 20 times [2021-10-15 19:50:21,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:21,450 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646384816] [2021-10-15 19:50:21,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:21,450 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:21,632 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 36 proven. 98 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-15 19:50:21,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:21,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646384816] [2021-10-15 19:50:21,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646384816] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:21,633 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346635930] [2021-10-15 19:50:21,633 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 19:50:21,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:21,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:50:21,634 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:50:21,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-10-15 19:50:22,786 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-15 19:50:22,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:50:22,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-15 19:50:22,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:23,117 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 85 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-10-15 19:50:23,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346635930] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:23,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:50:23,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 28 [2021-10-15 19:50:23,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15509545] [2021-10-15 19:50:23,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-15 19:50:23,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:23,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-15 19:50:23,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=564, Unknown=0, NotChecked=0, Total=756 [2021-10-15 19:50:23,119 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:50:23,119 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 224 places, 187 transitions, 2143 flow. Second operand has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 28 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:23,119 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:23,119 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:50:23,119 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:23,801 INFO L129 PetriNetUnfolder]: 26/211 cut-off events. [2021-10-15 19:50:23,801 INFO L130 PetriNetUnfolder]: For 930/930 co-relation queries the response was YES. [2021-10-15 19:50:23,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1491 conditions, 211 events. 26/211 cut-off events. For 930/930 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 538 event pairs, 0 based on Foata normal form. 3/207 useless extension candidates. Maximal degree in co-relation 1437. Up to 48 conditions per place. [2021-10-15 19:50:23,807 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 78 selfloop transitions, 120 changer transitions 1/202 dead transitions. [2021-10-15 19:50:23,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 202 transitions, 2750 flow [2021-10-15 19:50:23,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-10-15 19:50:23,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2021-10-15 19:50:23,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 308 transitions. [2021-10-15 19:50:23,809 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.36798088410991636 [2021-10-15 19:50:23,809 INFO L72 ComplementDD]: Start complementDD. Operand 27 states and 308 transitions. [2021-10-15 19:50:23,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 308 transitions. [2021-10-15 19:50:23,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:23,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 27 states and 308 transitions. [2021-10-15 19:50:23,810 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 28 states, 27 states have (on average 11.407407407407407) internal successors, (308), 27 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:23,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 28 states, 28 states have (on average 31.0) internal successors, (868), 28 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:23,817 INFO L81 ComplementDD]: Finished complementDD. Result has 28 states, 28 states have (on average 31.0) internal successors, (868), 28 states have internal predecessors, (868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:23,817 INFO L186 Difference]: Start difference. First operand has 224 places, 187 transitions, 2143 flow. Second operand 27 states and 308 transitions. [2021-10-15 19:50:23,817 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 202 transitions, 2750 flow [2021-10-15 19:50:23,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 202 transitions, 2618 flow, removed 51 selfloop flow, removed 17 redundant places. [2021-10-15 19:50:23,837 INFO L242 Difference]: Finished difference. Result has 233 places, 194 transitions, 2433 flow [2021-10-15 19:50:23,838 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=2011, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=27, PETRI_FLOW=2433, PETRI_PLACES=233, PETRI_TRANSITIONS=194} [2021-10-15 19:50:23,838 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 215 predicate places. [2021-10-15 19:50:23,838 INFO L470 AbstractCegarLoop]: Abstraction has has 233 places, 194 transitions, 2433 flow [2021-10-15 19:50:23,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.678571428571429) internal successors, (271), 28 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:23,839 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:23,839 INFO L254 CegarLoopForPetriNet]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:23,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:24,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:24,060 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:50:24,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:24,060 INFO L82 PathProgramCache]: Analyzing trace with hash 912773139, now seen corresponding path program 21 times [2021-10-15 19:50:24,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:24,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465231483] [2021-10-15 19:50:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:24,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:24,245 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 51 proven. 62 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-10-15 19:50:24,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:24,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465231483] [2021-10-15 19:50:24,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465231483] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:24,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497512914] [2021-10-15 19:50:24,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-15 19:50:24,246 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:24,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:50:24,247 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:50:24,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-10-15 19:50:26,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-10-15 19:50:26,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:50:26,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-15 19:50:26,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 83 proven. 49 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-10-15 19:50:26,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497512914] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:26,710 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:50:26,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 30 [2021-10-15 19:50:26,710 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297521074] [2021-10-15 19:50:26,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-10-15 19:50:26,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:26,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-10-15 19:50:26,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=675, Unknown=0, NotChecked=0, Total=870 [2021-10-15 19:50:26,711 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:50:26,712 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 194 transitions, 2433 flow. Second operand has 30 states, 30 states have (on average 9.2) internal successors, (276), 30 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:26,712 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:26,712 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:50:26,712 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:27,093 INFO L129 PetriNetUnfolder]: 9/133 cut-off events. [2021-10-15 19:50:27,093 INFO L130 PetriNetUnfolder]: For 608/608 co-relation queries the response was YES. [2021-10-15 19:50:27,094 INFO L84 FinitePrefix]: Finished finitePrefix Result has 960 conditions, 133 events. 9/133 cut-off events. For 608/608 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 0 based on Foata normal form. 2/132 useless extension candidates. Maximal degree in co-relation 891. Up to 34 conditions per place. [2021-10-15 19:50:27,095 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 53 selfloop transitions, 36 changer transitions 40/132 dead transitions. [2021-10-15 19:50:27,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 132 transitions, 1804 flow [2021-10-15 19:50:27,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-15 19:50:27,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-10-15 19:50:27,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 314 transitions. [2021-10-15 19:50:27,097 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.3617511520737327 [2021-10-15 19:50:27,097 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 314 transitions. [2021-10-15 19:50:27,098 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 314 transitions. [2021-10-15 19:50:27,098 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:27,098 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 314 transitions. [2021-10-15 19:50:27,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 11.214285714285714) internal successors, (314), 28 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:27,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 31.0) internal successors, (899), 29 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:27,100 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 31.0) internal successors, (899), 29 states have internal predecessors, (899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:27,101 INFO L186 Difference]: Start difference. First operand has 233 places, 194 transitions, 2433 flow. Second operand 28 states and 314 transitions. [2021-10-15 19:50:27,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 132 transitions, 1804 flow [2021-10-15 19:50:27,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 132 transitions, 1619 flow, removed 39 selfloop flow, removed 32 redundant places. [2021-10-15 19:50:27,115 INFO L242 Difference]: Finished difference. Result has 188 places, 86 transitions, 962 flow [2021-10-15 19:50:27,115 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1283, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=962, PETRI_PLACES=188, PETRI_TRANSITIONS=86} [2021-10-15 19:50:27,116 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 170 predicate places. [2021-10-15 19:50:27,116 INFO L470 AbstractCegarLoop]: Abstraction has has 188 places, 86 transitions, 962 flow [2021-10-15 19:50:27,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.2) internal successors, (276), 30 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:27,116 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:27,116 INFO L254 CegarLoopForPetriNet]: trace histogram [8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:27,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:27,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-10-15 19:50:27,344 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:50:27,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:27,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1086756677, now seen corresponding path program 22 times [2021-10-15 19:50:27,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:27,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025047861] [2021-10-15 19:50:27,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:27,344 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:31,488 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:31,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:31,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025047861] [2021-10-15 19:50:31,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025047861] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:31,489 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786618585] [2021-10-15 19:50:31,489 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-15 19:50:31,489 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:31,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:50:31,490 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:50:31,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-10-15 19:50:32,713 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-15 19:50:32,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:50:32,716 WARN L261 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 116 conjunts are in the unsatisfiable core [2021-10-15 19:50:32,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:32,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:50:32,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-15 19:50:32,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:32,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:50:32,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:32,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-10-15 19:50:33,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2021-10-15 19:50:33,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-10-15 19:50:33,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 71 [2021-10-15 19:50:33,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:33,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 80 [2021-10-15 19:50:34,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 92 [2021-10-15 19:50:34,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:34,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 107 [2021-10-15 19:50:35,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,226 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:35,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 111 [2021-10-15 19:50:35,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:35,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:35,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 109 [2021-10-15 19:50:36,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:36,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:36,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 112 [2021-10-15 19:50:37,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,080 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:37,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 115 [2021-10-15 19:50:37,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,642 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:37,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 109 [2021-10-15 19:50:38,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,221 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:38,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 112 [2021-10-15 19:50:38,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,819 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:38,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:38,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 109 [2021-10-15 19:50:39,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 107 [2021-10-15 19:50:39,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,964 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:39,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:39,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 111 [2021-10-15 19:50:40,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,352 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:40,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 109 [2021-10-15 19:50:40,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,761 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:40,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:40,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 111 [2021-10-15 19:50:41,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,204 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 114 [2021-10-15 19:50:41,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:41,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:41,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 112 [2021-10-15 19:50:42,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,025 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:42,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 114 [2021-10-15 19:50:42,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,463 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:50:42,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:50:42,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 111 [2021-10-15 19:50:42,958 INFO L354 Elim1Store]: treesize reduction 304, result has 15.8 percent of original size [2021-10-15 19:50:42,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 44 case distinctions, treesize of input 95 treesize of output 99 [2021-10-15 19:50:43,269 INFO L354 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2021-10-15 19:50:43,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 122 treesize of output 66 [2021-10-15 19:50:43,376 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:50:43,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786618585] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:43,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:50:43,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 61] total 113 [2021-10-15 19:50:43,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034790255] [2021-10-15 19:50:43,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2021-10-15 19:50:43,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:43,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2021-10-15 19:50:43,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=509, Invalid=12147, Unknown=0, NotChecked=0, Total=12656 [2021-10-15 19:50:43,381 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:50:43,381 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 86 transitions, 962 flow. Second operand has 113 states, 113 states have (on average 5.150442477876106) internal successors, (582), 113 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:43,381 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:43,381 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:50:43,381 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:46,974 INFO L129 PetriNetUnfolder]: 16/160 cut-off events. [2021-10-15 19:50:46,974 INFO L130 PetriNetUnfolder]: For 763/763 co-relation queries the response was YES. [2021-10-15 19:50:46,974 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1126 conditions, 160 events. 16/160 cut-off events. For 763/763 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 246 event pairs, 0 based on Foata normal form. 1/156 useless extension candidates. Maximal degree in co-relation 1083. Up to 78 conditions per place. [2021-10-15 19:50:46,975 INFO L132 encePairwiseOnDemand]: 17/31 looper letters, 75 selfloop transitions, 73 changer transitions 2/152 dead transitions. [2021-10-15 19:50:46,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 152 transitions, 2086 flow [2021-10-15 19:50:46,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-10-15 19:50:46,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2021-10-15 19:50:46,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 361 transitions. [2021-10-15 19:50:46,977 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.17644183773216032 [2021-10-15 19:50:46,978 INFO L72 ComplementDD]: Start complementDD. Operand 66 states and 361 transitions. [2021-10-15 19:50:46,978 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 361 transitions. [2021-10-15 19:50:46,978 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:46,978 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 66 states and 361 transitions. [2021-10-15 19:50:46,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 67 states, 66 states have (on average 5.46969696969697) internal successors, (361), 66 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:46,982 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 67 states, 67 states have (on average 31.0) internal successors, (2077), 67 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:46,983 INFO L81 ComplementDD]: Finished complementDD. Result has 67 states, 67 states have (on average 31.0) internal successors, (2077), 67 states have internal predecessors, (2077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:46,983 INFO L186 Difference]: Start difference. First operand has 188 places, 86 transitions, 962 flow. Second operand 66 states and 361 transitions. [2021-10-15 19:50:46,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 152 transitions, 2086 flow [2021-10-15 19:50:46,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 152 transitions, 1726 flow, removed 83 selfloop flow, removed 35 redundant places. [2021-10-15 19:50:46,995 INFO L242 Difference]: Finished difference. Result has 210 places, 143 transitions, 1712 flow [2021-10-15 19:50:46,996 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=66, PETRI_FLOW=1712, PETRI_PLACES=210, PETRI_TRANSITIONS=143} [2021-10-15 19:50:46,996 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 192 predicate places. [2021-10-15 19:50:46,996 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 143 transitions, 1712 flow [2021-10-15 19:50:46,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 113 states have (on average 5.150442477876106) internal successors, (582), 113 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:46,996 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:46,997 INFO L254 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:47,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-10-15 19:50:47,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-10-15 19:50:47,204 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:50:47,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:47,204 INFO L82 PathProgramCache]: Analyzing trace with hash -484910969, now seen corresponding path program 23 times [2021-10-15 19:50:47,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:47,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729592580] [2021-10-15 19:50:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:47,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:47,414 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 49 proven. 124 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2021-10-15 19:50:47,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:47,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729592580] [2021-10-15 19:50:47,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729592580] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:47,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1881563898] [2021-10-15 19:50:47,414 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-15 19:50:47,414 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:47,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:50:47,415 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:50:47,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-10-15 19:50:52,538 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-10-15 19:50:52,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:50:52,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-15 19:50:52,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:52,884 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 64 proven. 81 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-10-15 19:50:52,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1881563898] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:52,884 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:50:52,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 31 [2021-10-15 19:50:52,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656431537] [2021-10-15 19:50:52,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-15 19:50:52,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:52,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-15 19:50:52,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=697, Unknown=0, NotChecked=0, Total=930 [2021-10-15 19:50:52,886 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:50:52,886 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 143 transitions, 1712 flow. Second operand has 31 states, 31 states have (on average 9.580645161290322) internal successors, (297), 31 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) [2021-10-15 19:50:52,886 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:52,886 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:50:52,886 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:53,617 INFO L129 PetriNetUnfolder]: 18/171 cut-off events. [2021-10-15 19:50:53,617 INFO L130 PetriNetUnfolder]: For 885/885 co-relation queries the response was YES. [2021-10-15 19:50:53,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1273 conditions, 171 events. 18/171 cut-off events. For 885/885 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 309 event pairs, 0 based on Foata normal form. 3/173 useless extension candidates. Maximal degree in co-relation 1207. Up to 38 conditions per place. [2021-10-15 19:50:53,619 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 62 selfloop transitions, 99 changer transitions 1/165 dead transitions. [2021-10-15 19:50:53,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 238 places, 165 transitions, 2357 flow [2021-10-15 19:50:53,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-15 19:50:53,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-10-15 19:50:53,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 342 transitions. [2021-10-15 19:50:53,621 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.36774193548387096 [2021-10-15 19:50:53,621 INFO L72 ComplementDD]: Start complementDD. Operand 30 states and 342 transitions. [2021-10-15 19:50:53,621 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 342 transitions. [2021-10-15 19:50:53,621 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:53,621 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 30 states and 342 transitions. [2021-10-15 19:50:53,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 31 states, 30 states have (on average 11.4) internal successors, (342), 30 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:53,623 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 31 states, 31 states have (on average 31.0) internal successors, (961), 31 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:53,623 INFO L81 ComplementDD]: Finished complementDD. Result has 31 states, 31 states have (on average 31.0) internal successors, (961), 31 states have internal predecessors, (961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:53,623 INFO L186 Difference]: Start difference. First operand has 210 places, 143 transitions, 1712 flow. Second operand 30 states and 342 transitions. [2021-10-15 19:50:53,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 238 places, 165 transitions, 2357 flow [2021-10-15 19:50:53,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 221 places, 165 transitions, 2297 flow, removed 14 selfloop flow, removed 17 redundant places. [2021-10-15 19:50:53,637 INFO L242 Difference]: Finished difference. Result has 223 places, 153 transitions, 2087 flow [2021-10-15 19:50:53,638 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1652, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=30, PETRI_FLOW=2087, PETRI_PLACES=223, PETRI_TRANSITIONS=153} [2021-10-15 19:50:53,638 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 205 predicate places. [2021-10-15 19:50:53,638 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 153 transitions, 2087 flow [2021-10-15 19:50:53,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.580645161290322) internal successors, (297), 31 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) [2021-10-15 19:50:53,638 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:53,639 INFO L254 CegarLoopForPetriNet]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:53,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:53,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:53,856 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:50:53,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:53,856 INFO L82 PathProgramCache]: Analyzing trace with hash 749347431, now seen corresponding path program 24 times [2021-10-15 19:50:53,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:53,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198658548] [2021-10-15 19:50:53,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:53,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:53,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:50:54,058 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 66 proven. 79 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-10-15 19:50:54,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:50:54,058 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198658548] [2021-10-15 19:50:54,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198658548] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:54,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648890232] [2021-10-15 19:50:54,059 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-15 19:50:54,059 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:50:54,064 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:50:54,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-10-15 19:50:56,543 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-10-15 19:50:56,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:50:56,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-15 19:50:56,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:50:56,906 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 81 proven. 64 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-10-15 19:50:56,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648890232] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:50:56,906 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:50:56,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 31 [2021-10-15 19:50:56,907 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109268877] [2021-10-15 19:50:56,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-15 19:50:56,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:50:56,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-15 19:50:56,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=705, Unknown=0, NotChecked=0, Total=930 [2021-10-15 19:50:56,908 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:50:56,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 153 transitions, 2087 flow. Second operand has 31 states, 31 states have (on average 9.193548387096774) internal successors, (285), 31 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:56,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:50:56,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:50:56,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:50:57,257 INFO L129 PetriNetUnfolder]: 11/152 cut-off events. [2021-10-15 19:50:57,258 INFO L130 PetriNetUnfolder]: For 960/960 co-relation queries the response was YES. [2021-10-15 19:50:57,259 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1195 conditions, 152 events. 11/152 cut-off events. For 960/960 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 197 event pairs, 0 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 1058. Up to 33 conditions per place. [2021-10-15 19:50:57,260 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 62 selfloop transitions, 41 changer transitions 45/151 dead transitions. [2021-10-15 19:50:57,260 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 151 transitions, 2255 flow [2021-10-15 19:50:57,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-15 19:50:57,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-15 19:50:57,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 292 transitions. [2021-10-15 19:50:57,262 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.40953716690042075 [2021-10-15 19:50:57,262 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 292 transitions. [2021-10-15 19:50:57,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 292 transitions. [2021-10-15 19:50:57,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:50:57,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 292 transitions. [2021-10-15 19:50:57,263 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 12.695652173913043) internal successors, (292), 23 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:57,265 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 31.0) internal successors, (744), 24 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:57,265 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 31.0) internal successors, (744), 24 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:57,265 INFO L186 Difference]: Start difference. First operand has 223 places, 153 transitions, 2087 flow. Second operand 23 states and 292 transitions. [2021-10-15 19:50:57,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 151 transitions, 2255 flow [2021-10-15 19:50:57,283 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 151 transitions, 2037 flow, removed 36 selfloop flow, removed 39 redundant places. [2021-10-15 19:50:57,286 INFO L242 Difference]: Finished difference. Result has 203 places, 96 transitions, 1192 flow [2021-10-15 19:50:57,287 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1613, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=41, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1192, PETRI_PLACES=203, PETRI_TRANSITIONS=96} [2021-10-15 19:50:57,287 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 185 predicate places. [2021-10-15 19:50:57,287 INFO L470 AbstractCegarLoop]: Abstraction has has 203 places, 96 transitions, 1192 flow [2021-10-15 19:50:57,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.193548387096774) internal successors, (285), 31 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:50:57,287 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:50:57,288 INFO L254 CegarLoopForPetriNet]: trace histogram [9, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:50:57,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-10-15 19:50:57,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:50:57,504 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:50:57,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:50:57,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1862401743, now seen corresponding path program 25 times [2021-10-15 19:50:57,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:50:57,504 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310295959] [2021-10-15 19:50:57,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:50:57,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:50:57,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:51:02,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:51:02,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310295959] [2021-10-15 19:51:02,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310295959] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:02,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228916840] [2021-10-15 19:51:02,533 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-15 19:51:02,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:51:02,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:02,535 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:51:02,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-10-15 19:51:04,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:04,069 WARN L261 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 130 conjunts are in the unsatisfiable core [2021-10-15 19:51:04,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:04,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-10-15 19:51:04,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-10-15 19:51:04,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-10-15 19:51:04,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-10-15 19:51:04,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 47 [2021-10-15 19:51:04,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 56 [2021-10-15 19:51:04,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:04,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 71 [2021-10-15 19:51:05,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 16 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 86 [2021-10-15 19:51:05,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 101 [2021-10-15 19:51:05,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:05,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 29 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 104 [2021-10-15 19:51:06,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:06,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 37 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 116 [2021-10-15 19:51:07,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,170 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:07,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 123 [2021-10-15 19:51:07,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:07,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:07,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 121 [2021-10-15 19:51:08,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,379 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:08,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:08,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 121 [2021-10-15 19:51:09,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:09,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 124 [2021-10-15 19:51:09,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:09,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:09,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 121 [2021-10-15 19:51:10,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,356 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:10,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 124 [2021-10-15 19:51:10,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:10,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,008 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:11,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 121 [2021-10-15 19:51:11,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,688 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:11,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:11,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 124 [2021-10-15 19:51:12,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 37 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 119 [2021-10-15 19:51:12,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,858 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:12,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:12,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 123 [2021-10-15 19:51:13,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:13,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 126 [2021-10-15 19:51:13,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,763 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:13,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:13,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 121 [2021-10-15 19:51:14,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,232 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:14,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 126 treesize of output 126 [2021-10-15 19:51:14,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:14,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:14,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 145 treesize of output 132 [2021-10-15 19:51:15,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:15,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 123 [2021-10-15 19:51:15,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:15,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:15,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 120 treesize of output 123 [2021-10-15 19:51:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-10-15 19:51:16,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:16,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 37 disjoint index pairs (out of 55 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 126 [2021-10-15 19:51:16,698 INFO L354 Elim1Store]: treesize reduction 342, result has 15.8 percent of original size [2021-10-15 19:51:16,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 54 case distinctions, treesize of input 102 treesize of output 109 [2021-10-15 19:51:17,054 INFO L354 Elim1Store]: treesize reduction 108, result has 0.9 percent of original size [2021-10-15 19:51:17,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 129 treesize of output 69 [2021-10-15 19:51:17,172 INFO L134 CoverageAnalysis]: Checked inductivity of 279 backedges. 0 proven. 279 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:51:17,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228916840] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:17,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:51:17,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 68] total 126 [2021-10-15 19:51:17,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494194526] [2021-10-15 19:51:17,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2021-10-15 19:51:17,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:51:17,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2021-10-15 19:51:17,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=15248, Unknown=0, NotChecked=0, Total=15750 [2021-10-15 19:51:17,177 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 31 [2021-10-15 19:51:17,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 96 transitions, 1192 flow. Second operand has 126 states, 126 states have (on average 5.142857142857143) internal successors, (648), 126 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:17,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:51:17,178 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 31 [2021-10-15 19:51:17,178 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:51:21,116 INFO L129 PetriNetUnfolder]: 18/179 cut-off events. [2021-10-15 19:51:21,116 INFO L130 PetriNetUnfolder]: For 1209/1209 co-relation queries the response was YES. [2021-10-15 19:51:21,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1358 conditions, 179 events. 18/179 cut-off events. For 1209/1209 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 293 event pairs, 0 based on Foata normal form. 4/183 useless extension candidates. Maximal degree in co-relation 1209. Up to 90 conditions per place. [2021-10-15 19:51:21,119 INFO L132 encePairwiseOnDemand]: 17/31 looper letters, 84 selfloop transitions, 79 changer transitions 2/167 dead transitions. [2021-10-15 19:51:21,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 167 transitions, 2470 flow [2021-10-15 19:51:21,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-10-15 19:51:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2021-10-15 19:51:21,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 393 transitions. [2021-10-15 19:51:21,121 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.1760752688172043 [2021-10-15 19:51:21,122 INFO L72 ComplementDD]: Start complementDD. Operand 72 states and 393 transitions. [2021-10-15 19:51:21,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 72 states and 393 transitions. [2021-10-15 19:51:21,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:51:21,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 72 states and 393 transitions. [2021-10-15 19:51:21,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 73 states, 72 states have (on average 5.458333333333333) internal successors, (393), 72 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:21,127 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 73 states, 73 states have (on average 31.0) internal successors, (2263), 73 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:21,127 INFO L81 ComplementDD]: Finished complementDD. Result has 73 states, 73 states have (on average 31.0) internal successors, (2263), 73 states have internal predecessors, (2263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:21,127 INFO L186 Difference]: Start difference. First operand has 203 places, 96 transitions, 1192 flow. Second operand 72 states and 393 transitions. [2021-10-15 19:51:21,127 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 167 transitions, 2470 flow [2021-10-15 19:51:21,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 167 transitions, 2122 flow, removed 70 selfloop flow, removed 45 redundant places. [2021-10-15 19:51:21,145 INFO L242 Difference]: Finished difference. Result has 226 places, 157 transitions, 2078 flow [2021-10-15 19:51:21,146 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1006, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=72, PETRI_FLOW=2078, PETRI_PLACES=226, PETRI_TRANSITIONS=157} [2021-10-15 19:51:21,146 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 208 predicate places. [2021-10-15 19:51:21,146 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 157 transitions, 2078 flow [2021-10-15 19:51:21,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 126 states have (on average 5.142857142857143) internal successors, (648), 126 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:21,146 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:51:21,147 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:51:21,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:21,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-10-15 19:51:21,360 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:51:21,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:21,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1286521171, now seen corresponding path program 26 times [2021-10-15 19:51:21,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:21,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464873898] [2021-10-15 19:51:21,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:21,360 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:21,603 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 83 proven. 98 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-10-15 19:51:21,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:51:21,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464873898] [2021-10-15 19:51:21,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464873898] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:21,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680641803] [2021-10-15 19:51:21,604 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-15 19:51:21,604 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:51:21,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:21,608 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:51:21,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-10-15 19:51:23,447 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-15 19:51:23,447 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:51:23,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-15 19:51:23,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:23,873 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 100 proven. 81 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-10-15 19:51:23,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680641803] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:23,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:51:23,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 34 [2021-10-15 19:51:23,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523526828] [2021-10-15 19:51:23,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-15 19:51:23,874 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:51:23,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-15 19:51:23,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=269, Invalid=853, Unknown=0, NotChecked=0, Total=1122 [2021-10-15 19:51:23,875 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:51:23,875 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 157 transitions, 2078 flow. Second operand has 34 states, 34 states have (on average 9.176470588235293) internal successors, (312), 34 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:23,875 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:51:23,875 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:51:23,876 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:51:24,241 INFO L129 PetriNetUnfolder]: 14/201 cut-off events. [2021-10-15 19:51:24,241 INFO L130 PetriNetUnfolder]: For 1169/1169 co-relation queries the response was YES. [2021-10-15 19:51:24,242 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1531 conditions, 201 events. 14/201 cut-off events. For 1169/1169 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 345 event pairs, 0 based on Foata normal form. 3/204 useless extension candidates. Maximal degree in co-relation 1454. Up to 46 conditions per place. [2021-10-15 19:51:24,244 INFO L132 encePairwiseOnDemand]: 18/31 looper letters, 83 selfloop transitions, 59 changer transitions 48/193 dead transitions. [2021-10-15 19:51:24,244 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 193 transitions, 2879 flow [2021-10-15 19:51:24,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-15 19:51:24,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-10-15 19:51:24,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 324 transitions. [2021-10-15 19:51:24,247 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.4180645161290323 [2021-10-15 19:51:24,247 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 324 transitions. [2021-10-15 19:51:24,247 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 324 transitions. [2021-10-15 19:51:24,247 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:51:24,247 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 324 transitions. [2021-10-15 19:51:24,248 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 12.96) internal successors, (324), 25 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:24,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 31.0) internal successors, (806), 26 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:24,250 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 31.0) internal successors, (806), 26 states have internal predecessors, (806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:24,250 INFO L186 Difference]: Start difference. First operand has 226 places, 157 transitions, 2078 flow. Second operand 25 states and 324 transitions. [2021-10-15 19:51:24,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 193 transitions, 2879 flow [2021-10-15 19:51:24,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 224 places, 193 transitions, 2773 flow, removed 34 selfloop flow, removed 22 redundant places. [2021-10-15 19:51:24,276 INFO L242 Difference]: Finished difference. Result has 226 places, 115 transitions, 1520 flow [2021-10-15 19:51:24,276 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1747, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1520, PETRI_PLACES=226, PETRI_TRANSITIONS=115} [2021-10-15 19:51:24,277 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 208 predicate places. [2021-10-15 19:51:24,277 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 115 transitions, 1520 flow [2021-10-15 19:51:24,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.176470588235293) internal successors, (312), 34 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:24,277 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:51:24,277 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 9, 9, 9, 9, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:51:24,303 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:24,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2021-10-15 19:51:24,478 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:51:24,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:24,478 INFO L82 PathProgramCache]: Analyzing trace with hash 322875757, now seen corresponding path program 6 times [2021-10-15 19:51:24,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:24,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772336176] [2021-10-15 19:51:24,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:24,479 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:24,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:24,757 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 64 proven. 153 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2021-10-15 19:51:24,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:51:24,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772336176] [2021-10-15 19:51:24,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772336176] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:24,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874562988] [2021-10-15 19:51:24,757 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-15 19:51:24,757 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:51:24,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:24,760 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:51:24,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-10-15 19:51:28,945 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-10-15 19:51:28,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-15 19:51:28,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-15 19:51:28,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:29,322 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 81 proven. 100 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2021-10-15 19:51:29,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874562988] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:29,322 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:51:29,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 34 [2021-10-15 19:51:29,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308629940] [2021-10-15 19:51:29,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-15 19:51:29,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:51:29,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-15 19:51:29,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=278, Invalid=844, Unknown=0, NotChecked=0, Total=1122 [2021-10-15 19:51:29,324 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:51:29,324 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 115 transitions, 1520 flow. Second operand has 34 states, 34 states have (on average 9.588235294117647) internal successors, (326), 34 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:29,324 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:51:29,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:51:29,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:51:29,879 INFO L129 PetriNetUnfolder]: 13/121 cut-off events. [2021-10-15 19:51:29,880 INFO L130 PetriNetUnfolder]: For 1027/1027 co-relation queries the response was YES. [2021-10-15 19:51:29,880 INFO L84 FinitePrefix]: Finished finitePrefix Result has 988 conditions, 121 events. 13/121 cut-off events. For 1027/1027 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 82 event pairs, 0 based on Foata normal form. 3/124 useless extension candidates. Maximal degree in co-relation 860. Up to 27 conditions per place. [2021-10-15 19:51:29,881 INFO L132 encePairwiseOnDemand]: 20/31 looper letters, 56 selfloop transitions, 61 changer transitions 0/120 dead transitions. [2021-10-15 19:51:29,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 120 transitions, 1836 flow [2021-10-15 19:51:29,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-15 19:51:29,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2021-10-15 19:51:29,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 324 transitions. [2021-10-15 19:51:29,884 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.31671554252199413 [2021-10-15 19:51:29,884 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 324 transitions. [2021-10-15 19:51:29,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 324 transitions. [2021-10-15 19:51:29,885 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:51:29,885 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 324 transitions. [2021-10-15 19:51:29,887 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 9.818181818181818) internal successors, (324), 33 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:29,888 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 31.0) internal successors, (1054), 34 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:29,889 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 31.0) internal successors, (1054), 34 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:29,889 INFO L186 Difference]: Start difference. First operand has 226 places, 115 transitions, 1520 flow. Second operand 33 states and 324 transitions. [2021-10-15 19:51:29,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 120 transitions, 1836 flow [2021-10-15 19:51:29,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 120 transitions, 1612 flow, removed 70 selfloop flow, removed 59 redundant places. [2021-10-15 19:51:29,905 INFO L242 Difference]: Finished difference. Result has 142 places, 106 transitions, 1388 flow [2021-10-15 19:51:29,905 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=1139, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=56, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=1388, PETRI_PLACES=142, PETRI_TRANSITIONS=106} [2021-10-15 19:51:29,906 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 124 predicate places. [2021-10-15 19:51:29,906 INFO L470 AbstractCegarLoop]: Abstraction has has 142 places, 106 transitions, 1388 flow [2021-10-15 19:51:29,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 9.588235294117647) internal successors, (326), 34 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:29,906 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:51:29,906 INFO L254 CegarLoopForPetriNet]: trace histogram [10, 10, 10, 10, 10, 10, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:51:29,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:30,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:51:30,120 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:51:30,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:51:30,120 INFO L82 PathProgramCache]: Analyzing trace with hash -494193, now seen corresponding path program 7 times [2021-10-15 19:51:30,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:51:30,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610364822] [2021-10-15 19:51:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:51:30,120 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:51:30,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:31,018 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 62 proven. 183 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-15 19:51:31,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:51:31,018 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610364822] [2021-10-15 19:51:31,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610364822] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:31,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1272499405] [2021-10-15 19:51:31,019 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-15 19:51:31,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:51:31,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:51:31,020 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-15 19:51:31,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-10-15 19:51:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:51:32,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 48 conjunts are in the unsatisfiable core [2021-10-15 19:51:32,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-15 19:51:33,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-10-15 19:51:33,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-15 19:51:33,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2021-10-15 19:51:33,346 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-10-15 19:51:33,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 46 [2021-10-15 19:51:33,531 INFO L354 Elim1Store]: treesize reduction 146, result has 18.0 percent of original size [2021-10-15 19:51:33,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 60 treesize of output 65 [2021-10-15 19:51:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 4 proven. 96 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-10-15 19:51:37,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1272499405] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-15 19:51:37,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-15 19:51:37,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 16] total 41 [2021-10-15 19:51:37,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203060456] [2021-10-15 19:51:37,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-15 19:51:37,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:51:37,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-15 19:51:37,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=274, Invalid=1364, Unknown=2, NotChecked=0, Total=1640 [2021-10-15 19:51:37,917 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:51:37,918 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 106 transitions, 1388 flow. Second operand has 41 states, 41 states have (on average 9.195121951219512) internal successors, (377), 41 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:37,918 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:51:37,918 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:51:37,918 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:51:44,547 INFO L129 PetriNetUnfolder]: 1/28 cut-off events. [2021-10-15 19:51:44,547 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-10-15 19:51:44,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 28 events. 1/28 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/29 useless extension candidates. Maximal degree in co-relation 160. Up to 8 conditions per place. [2021-10-15 19:51:44,548 INFO L132 encePairwiseOnDemand]: 27/31 looper letters, 0 selfloop transitions, 0 changer transitions 28/28 dead transitions. [2021-10-15 19:51:44,548 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 28 transitions, 320 flow [2021-10-15 19:51:44,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-15 19:51:44,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-15 19:51:44,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 188 transitions. [2021-10-15 19:51:44,549 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.26367461430575034 [2021-10-15 19:51:44,549 INFO L72 ComplementDD]: Start complementDD. Operand 23 states and 188 transitions. [2021-10-15 19:51:44,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 188 transitions. [2021-10-15 19:51:44,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:51:44,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 23 states and 188 transitions. [2021-10-15 19:51:44,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 24 states, 23 states have (on average 8.173913043478262) internal successors, (188), 23 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:44,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 24 states, 24 states have (on average 31.0) internal successors, (744), 24 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:44,551 INFO L81 ComplementDD]: Finished complementDD. Result has 24 states, 24 states have (on average 31.0) internal successors, (744), 24 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:44,551 INFO L186 Difference]: Start difference. First operand has 142 places, 106 transitions, 1388 flow. Second operand 23 states and 188 transitions. [2021-10-15 19:51:44,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 28 transitions, 320 flow [2021-10-15 19:51:44,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 28 transitions, 154 flow, removed 3 selfloop flow, removed 39 redundant places. [2021-10-15 19:51:44,553 INFO L242 Difference]: Finished difference. Result has 64 places, 0 transitions, 0 flow [2021-10-15 19:51:44,554 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=0, PETRI_PLACES=64, PETRI_TRANSITIONS=0} [2021-10-15 19:51:44,554 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 46 predicate places. [2021-10-15 19:51:44,554 INFO L470 AbstractCegarLoop]: Abstraction has has 64 places, 0 transitions, 0 flow [2021-10-15 19:51:44,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 9.195121951219512) internal successors, (377), 41 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:51:44,557 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:51:44,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-10-15 19:51:44,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-15 19:51:44,764 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:51:44,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:51:44 BoogieIcfgContainer [2021-10-15 19:51:44,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:51:44,769 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:51:44,769 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:51:44,770 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:51:44,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:48:43" (3/4) ... [2021-10-15 19:51:44,772 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-15 19:51:44,780 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-15 19:51:44,781 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-15 19:51:44,781 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:51:44,781 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-15 19:51:44,808 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:51:44,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:51:44,809 INFO L168 Benchmark]: Toolchain (without parser) took 181747.97 ms. Allocated memory was 109.1 MB in the beginning and 499.1 MB in the end (delta: 390.1 MB). Free memory was 71.9 MB in the beginning and 340.5 MB in the end (delta: -268.6 MB). Peak memory consumption was 120.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:44,810 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 109.1 MB. Free memory is still 87.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:51:44,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.07 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 83.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:44,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.50 ms. Allocated memory is still 109.1 MB. Free memory was 83.9 MB in the beginning and 82.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:44,811 INFO L168 Benchmark]: Boogie Preprocessor took 57.35 ms. Allocated memory is still 109.1 MB. Free memory was 82.3 MB in the beginning and 81.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:44,811 INFO L168 Benchmark]: RCFGBuilder took 425.80 ms. Allocated memory is still 109.1 MB. Free memory was 81.1 MB in the beginning and 70.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:44,811 INFO L168 Benchmark]: TraceAbstraction took 180889.52 ms. Allocated memory was 109.1 MB in the beginning and 499.1 MB in the end (delta: 390.1 MB). Free memory was 69.7 MB in the beginning and 343.1 MB in the end (delta: -273.4 MB). Peak memory consumption was 118.6 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:44,812 INFO L168 Benchmark]: Witness Printer took 39.34 ms. Allocated memory is still 499.1 MB. Free memory was 343.1 MB in the beginning and 340.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:51:44,813 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 109.1 MB. Free memory is still 87.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.07 ms. Allocated memory is still 109.1 MB. Free memory was 71.7 MB in the beginning and 83.9 MB in the end (delta: -12.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.50 ms. Allocated memory is still 109.1 MB. Free memory was 83.9 MB in the beginning and 82.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.35 ms. Allocated memory is still 109.1 MB. Free memory was 82.3 MB in the beginning and 81.1 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 425.80 ms. Allocated memory is still 109.1 MB. Free memory was 81.1 MB in the beginning and 70.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 180889.52 ms. Allocated memory was 109.1 MB in the beginning and 499.1 MB in the end (delta: 390.1 MB). Free memory was 69.7 MB in the beginning and 343.1 MB in the end (delta: -273.4 MB). Peak memory consumption was 118.6 MB. Max. memory is 16.1 GB. * Witness Printer took 39.34 ms. Allocated memory is still 499.1 MB. Free memory was 343.1 MB in the beginning and 340.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: 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, 22 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 5.1ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 180834.8ms, OverallIterations: 35, TraceHistogramMax: 10, EmptinessCheckTime: 0.0ms, AutomataDifference: 45029.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 37.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 243 SDtfs, 2667 SDslu, 792 SDs, 0 SdLazy, 28509 SolverSat, 2991 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 16919.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2809 GetRequests, 1135 SyntacticMatches, 87 SemanticMatches, 1587 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34877 ImplicationChecksByTransitivity, 77867.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2433occurred in iteration=27, InterpolantAutomatonStates: 980, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 386.3ms SsaConstructionTime, 11665.0ms SatisfiabilityAnalysisTime, 91910.5ms InterpolantComputationTime, 3321 NumberOfCodeBlocks, 3306 NumberOfCodeBlocksAsserted, 164 NumberOfCheckSat, 3252 ConstructedInterpolants, 84 QuantifiedInterpolants, 76141 SizeOfPredicates, 190 NumberOfNonLiveVariables, 5136 ConjunctsInSsa, 1136 ConjunctsInUnsatCore, 69 InterpolantComputations, 1 PerfectInterpolantSequences, 3387/7718 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 RESULT: Ultimate proved your program to be correct! [2021-10-15 19:51:44,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8d07739-2244-4327-a9cc-09d815342fd2/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...