/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:36:57,875 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:36:57,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:36:57,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:36:57,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:36:57,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:36:57,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:36:57,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:36:57,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:36:57,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:36:57,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:36:57,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:36:57,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:36:57,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:36:57,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:36:57,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:36:57,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:36:57,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:36:57,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:36:57,927 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:36:57,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:36:57,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:36:57,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:36:57,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:36:57,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:36:57,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:36:57,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:36:57,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:36:57,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:36:57,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:36:57,944 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:36:57,946 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:36:57,947 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:36:57,949 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:36:57,950 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:36:57,951 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:36:57,951 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:36:57,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:36:57,952 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:36:57,953 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:36:57,954 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:36:57,955 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:36:58,005 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:36:58,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:36:58,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:36:58,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:36:58,007 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:36:58,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:36:58,010 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:36:58,010 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:36:58,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:36:58,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:36:58,011 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:36:58,011 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:36:58,011 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:36:58,011 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:36:58,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:36:58,012 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:36:58,012 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:36:58,012 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:36:58,012 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:36:58,012 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:36:58,013 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:36:58,013 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:36:58,014 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:36:58,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:36:58,015 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:36:58,015 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:36:58,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:36:58,016 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:36:58,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:36:58,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:36:58,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:36:58,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:36:58,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:36:58,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:36:58,350 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:36:58,351 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-10-11 18:36:58,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c9d7aca/6bcbdbb259be4966b844e2f0f36fbbec/FLAG7a5a91346 [2020-10-11 18:36:58,938 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:36:58,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_pso.opt.i [2020-10-11 18:36:58,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c9d7aca/6bcbdbb259be4966b844e2f0f36fbbec/FLAG7a5a91346 [2020-10-11 18:36:59,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c9d7aca/6bcbdbb259be4966b844e2f0f36fbbec [2020-10-11 18:36:59,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:36:59,234 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:36:59,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:36:59,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:36:59,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:36:59,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:36:59,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230290f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59, skipping insertion in model container [2020-10-11 18:36:59,243 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:36:59,251 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:36:59,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:36:59,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:36:59,701 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:36:59,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:36:59,939 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:36:59,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59 WrapperNode [2020-10-11 18:36:59,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:36:59,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:36:59,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:36:59,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:36:59,949 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:36:59,966 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:36:59,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:36:59,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:36:59,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:36:59,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:36:59,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:36:59,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:36:59,999 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:37:00,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:37:00,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:37:00,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:37:00,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... [2020-10-11 18:37:00,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:37:00,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:37:00,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:37:00,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:37:00,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:37:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:37:00,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:37:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:37:00,075 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:37:00,075 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:37:00,076 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:37:00,076 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-11 18:37:00,081 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-11 18:37:00,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:37:00,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:37:00,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:37:00,084 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:37:00,478 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:37:00,479 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:37:00,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:37:00 BoogieIcfgContainer [2020-10-11 18:37:00,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:37:00,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:37:00,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:37:00,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:37:00,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:36:59" (1/3) ... [2020-10-11 18:37:00,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f905891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:37:00, skipping insertion in model container [2020-10-11 18:37:00,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:36:59" (2/3) ... [2020-10-11 18:37:00,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f905891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:37:00, skipping insertion in model container [2020-10-11 18:37:00,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:37:00" (3/3) ... [2020-10-11 18:37:00,498 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_pso.opt.i [2020-10-11 18:37:00,510 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:37:00,518 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:37:00,519 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:37:00,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,557 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,557 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,557 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,558 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,559 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,562 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,563 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,563 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,563 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,564 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,564 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,564 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,565 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,566 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,567 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,568 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,568 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,568 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,568 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,569 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,570 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,577 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,579 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,579 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,579 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,588 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,589 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,591 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,592 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,596 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,596 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,599 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:37:00,617 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 18:37:00,636 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:37:00,636 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:37:00,637 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:37:00,637 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:37:00,637 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:37:00,637 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:37:00,637 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:37:00,637 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:37:00,651 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 91 places, 80 transitions, 180 flow [2020-10-11 18:37:00,698 INFO L129 PetriNetUnfolder]: 2/76 cut-off events. [2020-10-11 18:37:00,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:37:00,704 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 76 events. 2/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 59 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-11 18:37:00,705 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 80 transitions, 180 flow [2020-10-11 18:37:00,711 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 75 places, 63 transitions, 138 flow [2020-10-11 18:37:00,734 INFO L129 PetriNetUnfolder]: 1/62 cut-off events. [2020-10-11 18:37:00,735 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:37:00,735 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:00,736 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:00,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:00,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:00,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1602664477, now seen corresponding path program 1 times [2020-10-11 18:37:00,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:00,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640349482] [2020-10-11 18:37:00,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:00,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:01,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:01,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640349482] [2020-10-11 18:37:01,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:01,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:37:01,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716836609] [2020-10-11 18:37:01,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:37:01,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:01,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:37:01,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:37:01,431 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 80 [2020-10-11 18:37:01,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 63 transitions, 138 flow. Second operand 6 states. [2020-10-11 18:37:01,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:01,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 80 [2020-10-11 18:37:01,436 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:01,625 INFO L129 PetriNetUnfolder]: 3/77 cut-off events. [2020-10-11 18:37:01,625 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:37:01,626 INFO L80 FinitePrefix]: Finished finitePrefix Result has 110 conditions, 77 events. 3/77 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 106 event pairs, 0 based on Foata normal form. 4/80 useless extension candidates. Maximal degree in co-relation 85. Up to 7 conditions per place. [2020-10-11 18:37:01,627 INFO L132 encePairwiseOnDemand]: 73/80 looper letters, 6 selfloop transitions, 2 changer transitions 11/72 dead transitions. [2020-10-11 18:37:01,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 72 transitions, 192 flow [2020-10-11 18:37:01,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:37:01,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:37:01,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 652 transitions. [2020-10-11 18:37:01,649 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9055555555555556 [2020-10-11 18:37:01,650 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 652 transitions. [2020-10-11 18:37:01,651 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 652 transitions. [2020-10-11 18:37:01,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:01,658 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 652 transitions. [2020-10-11 18:37:01,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:37:01,674 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:37:01,674 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:37:01,677 INFO L185 Difference]: Start difference. First operand has 75 places, 63 transitions, 138 flow. Second operand 9 states and 652 transitions. [2020-10-11 18:37:01,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 72 transitions, 192 flow [2020-10-11 18:37:01,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 72 transitions, 188 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-11 18:37:01,695 INFO L241 Difference]: Finished difference. Result has 86 places, 61 transitions, 150 flow [2020-10-11 18:37:01,699 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=150, PETRI_PLACES=86, PETRI_TRANSITIONS=61} [2020-10-11 18:37:01,703 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 11 predicate places. [2020-10-11 18:37:01,703 INFO L481 AbstractCegarLoop]: Abstraction has has 86 places, 61 transitions, 150 flow [2020-10-11 18:37:01,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:37:01,704 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:01,704 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:01,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:37:01,704 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:01,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:01,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1894093084, now seen corresponding path program 1 times [2020-10-11 18:37:01,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:01,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093065490] [2020-10-11 18:37:01,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:01,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:01,884 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093065490] [2020-10-11 18:37:01,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:01,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:37:01,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463906043] [2020-10-11 18:37:01,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:37:01,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:01,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:37:01,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:37:02,156 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 80 [2020-10-11 18:37:02,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 61 transitions, 150 flow. Second operand 7 states. [2020-10-11 18:37:02,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:02,157 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 80 [2020-10-11 18:37:02,157 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:02,359 INFO L129 PetriNetUnfolder]: 30/152 cut-off events. [2020-10-11 18:37:02,360 INFO L130 PetriNetUnfolder]: For 37/59 co-relation queries the response was YES. [2020-10-11 18:37:02,362 INFO L80 FinitePrefix]: Finished finitePrefix Result has 294 conditions, 152 events. 30/152 cut-off events. For 37/59 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 530 event pairs, 5 based on Foata normal form. 4/151 useless extension candidates. Maximal degree in co-relation 265. Up to 31 conditions per place. [2020-10-11 18:37:02,363 INFO L132 encePairwiseOnDemand]: 71/80 looper letters, 10 selfloop transitions, 5 changer transitions 21/86 dead transitions. [2020-10-11 18:37:02,363 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 86 transitions, 295 flow [2020-10-11 18:37:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:37:02,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:37:02,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2020-10-11 18:37:02,367 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.885 [2020-10-11 18:37:02,367 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 708 transitions. [2020-10-11 18:37:02,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 708 transitions. [2020-10-11 18:37:02,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:02,368 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 708 transitions. [2020-10-11 18:37:02,370 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:37:02,373 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:37:02,373 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:37:02,374 INFO L185 Difference]: Start difference. First operand has 86 places, 61 transitions, 150 flow. Second operand 10 states and 708 transitions. [2020-10-11 18:37:02,374 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 86 transitions, 295 flow [2020-10-11 18:37:02,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 86 transitions, 261 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:37:02,379 INFO L241 Difference]: Finished difference. Result has 88 places, 63 transitions, 188 flow [2020-10-11 18:37:02,380 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=188, PETRI_PLACES=88, PETRI_TRANSITIONS=63} [2020-10-11 18:37:02,380 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 13 predicate places. [2020-10-11 18:37:02,381 INFO L481 AbstractCegarLoop]: Abstraction has has 88 places, 63 transitions, 188 flow [2020-10-11 18:37:02,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:37:02,381 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:02,381 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:02,381 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:37:02,382 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:02,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:02,382 INFO L82 PathProgramCache]: Analyzing trace with hash 848649413, now seen corresponding path program 1 times [2020-10-11 18:37:02,382 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:02,383 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278966629] [2020-10-11 18:37:02,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:02,523 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278966629] [2020-10-11 18:37:02,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:02,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:37:02,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295886684] [2020-10-11 18:37:02,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:37:02,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:02,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:37:02,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:37:02,681 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 80 [2020-10-11 18:37:02,682 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 63 transitions, 188 flow. Second operand 6 states. [2020-10-11 18:37:02,682 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:02,682 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 80 [2020-10-11 18:37:02,682 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:02,840 INFO L129 PetriNetUnfolder]: 14/120 cut-off events. [2020-10-11 18:37:02,840 INFO L130 PetriNetUnfolder]: For 151/166 co-relation queries the response was YES. [2020-10-11 18:37:02,845 INFO L80 FinitePrefix]: Finished finitePrefix Result has 282 conditions, 120 events. 14/120 cut-off events. For 151/166 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 323 event pairs, 5 based on Foata normal form. 3/121 useless extension candidates. Maximal degree in co-relation 248. Up to 21 conditions per place. [2020-10-11 18:37:02,847 INFO L132 encePairwiseOnDemand]: 74/80 looper letters, 6 selfloop transitions, 2 changer transitions 10/73 dead transitions. [2020-10-11 18:37:02,847 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 73 transitions, 266 flow [2020-10-11 18:37:02,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:37:02,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:37:02,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 650 transitions. [2020-10-11 18:37:02,851 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9027777777777778 [2020-10-11 18:37:02,851 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 650 transitions. [2020-10-11 18:37:02,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 650 transitions. [2020-10-11 18:37:02,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:02,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 650 transitions. [2020-10-11 18:37:02,854 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:37:02,856 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:37:02,857 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:37:02,857 INFO L185 Difference]: Start difference. First operand has 88 places, 63 transitions, 188 flow. Second operand 9 states and 650 transitions. [2020-10-11 18:37:02,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 73 transitions, 266 flow [2020-10-11 18:37:02,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 73 transitions, 241 flow, removed 9 selfloop flow, removed 5 redundant places. [2020-10-11 18:37:02,865 INFO L241 Difference]: Finished difference. Result has 92 places, 63 transitions, 193 flow [2020-10-11 18:37:02,866 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=193, PETRI_PLACES=92, PETRI_TRANSITIONS=63} [2020-10-11 18:37:02,866 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 17 predicate places. [2020-10-11 18:37:02,866 INFO L481 AbstractCegarLoop]: Abstraction has has 92 places, 63 transitions, 193 flow [2020-10-11 18:37:02,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:37:02,867 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:02,867 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:02,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:37:02,868 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:02,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:02,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1219189844, now seen corresponding path program 1 times [2020-10-11 18:37:02,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:02,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052253746] [2020-10-11 18:37:02,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:03,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:03,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052253746] [2020-10-11 18:37:03,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:03,032 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:37:03,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571520038] [2020-10-11 18:37:03,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:37:03,033 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:03,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:37:03,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:37:03,218 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 80 [2020-10-11 18:37:03,218 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 63 transitions, 193 flow. Second operand 7 states. [2020-10-11 18:37:03,219 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:03,219 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 80 [2020-10-11 18:37:03,219 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:03,455 INFO L129 PetriNetUnfolder]: 8/142 cut-off events. [2020-10-11 18:37:03,455 INFO L130 PetriNetUnfolder]: For 197/218 co-relation queries the response was YES. [2020-10-11 18:37:03,456 INFO L80 FinitePrefix]: Finished finitePrefix Result has 351 conditions, 142 events. 8/142 cut-off events. For 197/218 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 518 event pairs, 0 based on Foata normal form. 8/150 useless extension candidates. Maximal degree in co-relation 313. Up to 22 conditions per place. [2020-10-11 18:37:03,457 INFO L132 encePairwiseOnDemand]: 73/80 looper letters, 14 selfloop transitions, 3 changer transitions 17/84 dead transitions. [2020-10-11 18:37:03,458 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 84 transitions, 409 flow [2020-10-11 18:37:03,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-11 18:37:03,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-11 18:37:03,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 974 transitions. [2020-10-11 18:37:03,465 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8696428571428572 [2020-10-11 18:37:03,465 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 974 transitions. [2020-10-11 18:37:03,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 974 transitions. [2020-10-11 18:37:03,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:03,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 974 transitions. [2020-10-11 18:37:03,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-11 18:37:03,471 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-11 18:37:03,472 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-11 18:37:03,472 INFO L185 Difference]: Start difference. First operand has 92 places, 63 transitions, 193 flow. Second operand 14 states and 974 transitions. [2020-10-11 18:37:03,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 84 transitions, 409 flow [2020-10-11 18:37:03,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 84 transitions, 347 flow, removed 29 selfloop flow, removed 8 redundant places. [2020-10-11 18:37:03,478 INFO L241 Difference]: Finished difference. Result has 103 places, 63 transitions, 210 flow [2020-10-11 18:37:03,478 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=210, PETRI_PLACES=103, PETRI_TRANSITIONS=63} [2020-10-11 18:37:03,479 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 28 predicate places. [2020-10-11 18:37:03,479 INFO L481 AbstractCegarLoop]: Abstraction has has 103 places, 63 transitions, 210 flow [2020-10-11 18:37:03,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:37:03,479 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:03,479 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:03,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:37:03,480 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:03,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1842885060, now seen corresponding path program 1 times [2020-10-11 18:37:03,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:03,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828037780] [2020-10-11 18:37:03,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:03,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:03,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:03,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828037780] [2020-10-11 18:37:03,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:03,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:37:03,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741196466] [2020-10-11 18:37:03,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:37:03,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:03,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:37:03,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:37:03,746 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 80 [2020-10-11 18:37:03,746 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 63 transitions, 210 flow. Second operand 6 states. [2020-10-11 18:37:03,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:03,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 80 [2020-10-11 18:37:03,747 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:03,893 INFO L129 PetriNetUnfolder]: 81/322 cut-off events. [2020-10-11 18:37:03,894 INFO L130 PetriNetUnfolder]: For 961/976 co-relation queries the response was YES. [2020-10-11 18:37:03,896 INFO L80 FinitePrefix]: Finished finitePrefix Result has 899 conditions, 322 events. 81/322 cut-off events. For 961/976 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1713 event pairs, 31 based on Foata normal form. 12/326 useless extension candidates. Maximal degree in co-relation 857. Up to 79 conditions per place. [2020-10-11 18:37:03,898 INFO L132 encePairwiseOnDemand]: 73/80 looper letters, 8 selfloop transitions, 3 changer transitions 19/84 dead transitions. [2020-10-11 18:37:03,898 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 84 transitions, 356 flow [2020-10-11 18:37:03,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:37:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:37:03,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 653 transitions. [2020-10-11 18:37:03,901 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9069444444444444 [2020-10-11 18:37:03,902 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 653 transitions. [2020-10-11 18:37:03,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 653 transitions. [2020-10-11 18:37:03,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:03,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 653 transitions. [2020-10-11 18:37:03,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:37:03,906 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:37:03,906 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:37:03,906 INFO L185 Difference]: Start difference. First operand has 103 places, 63 transitions, 210 flow. Second operand 9 states and 653 transitions. [2020-10-11 18:37:03,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 84 transitions, 356 flow [2020-10-11 18:37:03,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 84 transitions, 297 flow, removed 28 selfloop flow, removed 12 redundant places. [2020-10-11 18:37:03,912 INFO L241 Difference]: Finished difference. Result has 95 places, 65 transitions, 222 flow [2020-10-11 18:37:03,913 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=222, PETRI_PLACES=95, PETRI_TRANSITIONS=65} [2020-10-11 18:37:03,913 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 20 predicate places. [2020-10-11 18:37:03,913 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 65 transitions, 222 flow [2020-10-11 18:37:03,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:37:03,913 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:03,913 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:03,914 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:37:03,914 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:03,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:03,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1351373930, now seen corresponding path program 1 times [2020-10-11 18:37:03,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:03,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939382292] [2020-10-11 18:37:03,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:04,032 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939382292] [2020-10-11 18:37:04,032 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:04,033 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:37:04,033 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994468767] [2020-10-11 18:37:04,033 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:37:04,034 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:04,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:37:04,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:37:04,213 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 80 [2020-10-11 18:37:04,214 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 65 transitions, 222 flow. Second operand 7 states. [2020-10-11 18:37:04,214 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:04,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 80 [2020-10-11 18:37:04,214 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:04,361 INFO L129 PetriNetUnfolder]: 65/295 cut-off events. [2020-10-11 18:37:04,362 INFO L130 PetriNetUnfolder]: For 946/992 co-relation queries the response was YES. [2020-10-11 18:37:04,364 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1011 conditions, 295 events. 65/295 cut-off events. For 946/992 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1526 event pairs, 29 based on Foata normal form. 16/305 useless extension candidates. Maximal degree in co-relation 971. Up to 72 conditions per place. [2020-10-11 18:37:04,366 INFO L132 encePairwiseOnDemand]: 71/80 looper letters, 10 selfloop transitions, 5 changer transitions 11/78 dead transitions. [2020-10-11 18:37:04,366 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 78 transitions, 387 flow [2020-10-11 18:37:04,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:37:04,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:37:04,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 496 transitions. [2020-10-11 18:37:04,369 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8857142857142857 [2020-10-11 18:37:04,369 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 496 transitions. [2020-10-11 18:37:04,369 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 496 transitions. [2020-10-11 18:37:04,370 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:04,370 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 496 transitions. [2020-10-11 18:37:04,371 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:37:04,372 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:37:04,372 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:37:04,372 INFO L185 Difference]: Start difference. First operand has 95 places, 65 transitions, 222 flow. Second operand 7 states and 496 transitions. [2020-10-11 18:37:04,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 78 transitions, 387 flow [2020-10-11 18:37:04,375 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 78 transitions, 374 flow, removed 5 selfloop flow, removed 4 redundant places. [2020-10-11 18:37:04,377 INFO L241 Difference]: Finished difference. Result has 95 places, 65 transitions, 236 flow [2020-10-11 18:37:04,378 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=236, PETRI_PLACES=95, PETRI_TRANSITIONS=65} [2020-10-11 18:37:04,378 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 20 predicate places. [2020-10-11 18:37:04,378 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 65 transitions, 236 flow [2020-10-11 18:37:04,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:37:04,379 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:04,379 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:04,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:37:04,379 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:04,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:04,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1632052388, now seen corresponding path program 2 times [2020-10-11 18:37:04,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:04,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876606749] [2020-10-11 18:37:04,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:04,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:04,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:04,459 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876606749] [2020-10-11 18:37:04,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:04,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:37:04,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154064586] [2020-10-11 18:37:04,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:37:04,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:04,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:37:04,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:37:04,671 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 80 [2020-10-11 18:37:04,672 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 65 transitions, 236 flow. Second operand 7 states. [2020-10-11 18:37:04,672 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:04,672 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 80 [2020-10-11 18:37:04,673 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:04,895 INFO L129 PetriNetUnfolder]: 33/284 cut-off events. [2020-10-11 18:37:04,895 INFO L130 PetriNetUnfolder]: For 746/766 co-relation queries the response was YES. [2020-10-11 18:37:04,898 INFO L80 FinitePrefix]: Finished finitePrefix Result has 845 conditions, 284 events. 33/284 cut-off events. For 746/766 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1651 event pairs, 14 based on Foata normal form. 10/290 useless extension candidates. Maximal degree in co-relation 801. Up to 45 conditions per place. [2020-10-11 18:37:04,900 INFO L132 encePairwiseOnDemand]: 73/80 looper letters, 14 selfloop transitions, 3 changer transitions 17/86 dead transitions. [2020-10-11 18:37:04,900 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 86 transitions, 472 flow [2020-10-11 18:37:04,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-11 18:37:04,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-11 18:37:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 974 transitions. [2020-10-11 18:37:04,904 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8696428571428572 [2020-10-11 18:37:04,905 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 974 transitions. [2020-10-11 18:37:04,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 974 transitions. [2020-10-11 18:37:04,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:04,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 974 transitions. [2020-10-11 18:37:04,909 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 15 states. [2020-10-11 18:37:04,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 15 states. [2020-10-11 18:37:04,913 INFO L81 ComplementDD]: Finished complementDD. Result 15 states. [2020-10-11 18:37:04,913 INFO L185 Difference]: Start difference. First operand has 95 places, 65 transitions, 236 flow. Second operand 14 states and 974 transitions. [2020-10-11 18:37:04,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 86 transitions, 472 flow [2020-10-11 18:37:04,918 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 86 transitions, 418 flow, removed 21 selfloop flow, removed 6 redundant places. [2020-10-11 18:37:04,921 INFO L241 Difference]: Finished difference. Result has 111 places, 65 transitions, 251 flow [2020-10-11 18:37:04,921 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=251, PETRI_PLACES=111, PETRI_TRANSITIONS=65} [2020-10-11 18:37:04,922 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 36 predicate places. [2020-10-11 18:37:04,922 INFO L481 AbstractCegarLoop]: Abstraction has has 111 places, 65 transitions, 251 flow [2020-10-11 18:37:04,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:37:04,922 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:04,922 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:04,923 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:37:04,923 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:04,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:04,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1777716549, now seen corresponding path program 1 times [2020-10-11 18:37:04,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:04,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001527090] [2020-10-11 18:37:04,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:04,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:05,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:05,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001527090] [2020-10-11 18:37:05,034 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:05,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:37:05,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944953442] [2020-10-11 18:37:05,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:37:05,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:05,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:37:05,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:37:05,179 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 80 [2020-10-11 18:37:05,180 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 65 transitions, 251 flow. Second operand 6 states. [2020-10-11 18:37:05,180 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:05,180 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 80 [2020-10-11 18:37:05,180 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:05,632 INFO L129 PetriNetUnfolder]: 1057/2186 cut-off events. [2020-10-11 18:37:05,632 INFO L130 PetriNetUnfolder]: For 3212/3302 co-relation queries the response was YES. [2020-10-11 18:37:05,648 INFO L80 FinitePrefix]: Finished finitePrefix Result has 5034 conditions, 2186 events. 1057/2186 cut-off events. For 3212/3302 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 16476 event pairs, 127 based on Foata normal form. 52/2073 useless extension candidates. Maximal degree in co-relation 4985. Up to 822 conditions per place. [2020-10-11 18:37:05,657 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 12 selfloop transitions, 7 changer transitions 23/96 dead transitions. [2020-10-11 18:37:05,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 96 transitions, 397 flow [2020-10-11 18:37:05,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:37:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:37:05,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 638 transitions. [2020-10-11 18:37:05,660 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8861111111111111 [2020-10-11 18:37:05,660 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 638 transitions. [2020-10-11 18:37:05,660 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 638 transitions. [2020-10-11 18:37:05,661 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:05,661 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 638 transitions. [2020-10-11 18:37:05,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:37:05,664 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:37:05,665 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:37:05,665 INFO L185 Difference]: Start difference. First operand has 111 places, 65 transitions, 251 flow. Second operand 9 states and 638 transitions. [2020-10-11 18:37:05,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 96 transitions, 397 flow [2020-10-11 18:37:05,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 96 transitions, 366 flow, removed 14 selfloop flow, removed 12 redundant places. [2020-10-11 18:37:05,677 INFO L241 Difference]: Finished difference. Result has 102 places, 69 transitions, 288 flow [2020-10-11 18:37:05,677 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=288, PETRI_PLACES=102, PETRI_TRANSITIONS=69} [2020-10-11 18:37:05,678 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 27 predicate places. [2020-10-11 18:37:05,678 INFO L481 AbstractCegarLoop]: Abstraction has has 102 places, 69 transitions, 288 flow [2020-10-11 18:37:05,678 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:37:05,678 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:05,678 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:05,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:37:05,679 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:05,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:05,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1116547107, now seen corresponding path program 1 times [2020-10-11 18:37:05,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:05,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327190305] [2020-10-11 18:37:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:05,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327190305] [2020-10-11 18:37:05,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:05,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:37:05,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924569935] [2020-10-11 18:37:05,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:37:05,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:05,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:37:05,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:37:05,925 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 80 [2020-10-11 18:37:05,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 69 transitions, 288 flow. Second operand 7 states. [2020-10-11 18:37:05,926 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:05,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 80 [2020-10-11 18:37:05,927 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:06,321 INFO L129 PetriNetUnfolder]: 727/1568 cut-off events. [2020-10-11 18:37:06,322 INFO L130 PetriNetUnfolder]: For 4042/5221 co-relation queries the response was YES. [2020-10-11 18:37:06,331 INFO L80 FinitePrefix]: Finished finitePrefix Result has 6131 conditions, 1568 events. 727/1568 cut-off events. For 4042/5221 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 11262 event pairs, 45 based on Foata normal form. 97/1590 useless extension candidates. Maximal degree in co-relation 6085. Up to 887 conditions per place. [2020-10-11 18:37:06,337 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 12 selfloop transitions, 11 changer transitions 23/100 dead transitions. [2020-10-11 18:37:06,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 100 transitions, 605 flow [2020-10-11 18:37:06,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:37:06,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:37:06,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 708 transitions. [2020-10-11 18:37:06,341 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.885 [2020-10-11 18:37:06,341 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 708 transitions. [2020-10-11 18:37:06,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 708 transitions. [2020-10-11 18:37:06,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:06,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 708 transitions. [2020-10-11 18:37:06,344 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:37:06,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:37:06,346 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:37:06,346 INFO L185 Difference]: Start difference. First operand has 102 places, 69 transitions, 288 flow. Second operand 10 states and 708 transitions. [2020-10-11 18:37:06,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 100 transitions, 605 flow [2020-10-11 18:37:06,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 100 transitions, 580 flow, removed 7 selfloop flow, removed 5 redundant places. [2020-10-11 18:37:06,360 INFO L241 Difference]: Finished difference. Result has 108 places, 73 transitions, 376 flow [2020-10-11 18:37:06,361 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=376, PETRI_PLACES=108, PETRI_TRANSITIONS=73} [2020-10-11 18:37:06,361 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 33 predicate places. [2020-10-11 18:37:06,361 INFO L481 AbstractCegarLoop]: Abstraction has has 108 places, 73 transitions, 376 flow [2020-10-11 18:37:06,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:37:06,361 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:06,363 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:06,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 18:37:06,364 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:06,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:06,364 INFO L82 PathProgramCache]: Analyzing trace with hash 995571980, now seen corresponding path program 1 times [2020-10-11 18:37:06,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:06,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884709843] [2020-10-11 18:37:06,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:06,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:06,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:06,501 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884709843] [2020-10-11 18:37:06,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:06,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:37:06,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642469344] [2020-10-11 18:37:06,502 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:37:06,502 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:06,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:37:06,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:37:06,620 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 80 [2020-10-11 18:37:06,620 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 73 transitions, 376 flow. Second operand 8 states. [2020-10-11 18:37:06,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:06,621 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 80 [2020-10-11 18:37:06,621 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:06,918 INFO L129 PetriNetUnfolder]: 324/830 cut-off events. [2020-10-11 18:37:06,918 INFO L130 PetriNetUnfolder]: For 5935/6755 co-relation queries the response was YES. [2020-10-11 18:37:06,923 INFO L80 FinitePrefix]: Finished finitePrefix Result has 4322 conditions, 830 events. 324/830 cut-off events. For 5935/6755 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5525 event pairs, 6 based on Foata normal form. 99/904 useless extension candidates. Maximal degree in co-relation 4272. Up to 445 conditions per place. [2020-10-11 18:37:06,925 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 6 selfloop transitions, 15 changer transitions 29/104 dead transitions. [2020-10-11 18:37:06,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 104 transitions, 854 flow [2020-10-11 18:37:06,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:37:06,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:37:06,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 778 transitions. [2020-10-11 18:37:06,930 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.884090909090909 [2020-10-11 18:37:06,930 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 778 transitions. [2020-10-11 18:37:06,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 778 transitions. [2020-10-11 18:37:06,932 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:06,932 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 778 transitions. [2020-10-11 18:37:06,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:37:06,937 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:37:06,937 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:37:06,938 INFO L185 Difference]: Start difference. First operand has 108 places, 73 transitions, 376 flow. Second operand 11 states and 778 transitions. [2020-10-11 18:37:06,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 104 transitions, 854 flow [2020-10-11 18:37:06,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 104 transitions, 674 flow, removed 79 selfloop flow, removed 9 redundant places. [2020-10-11 18:37:06,951 INFO L241 Difference]: Finished difference. Result has 111 places, 75 transitions, 394 flow [2020-10-11 18:37:06,952 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=307, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=394, PETRI_PLACES=111, PETRI_TRANSITIONS=75} [2020-10-11 18:37:06,952 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 36 predicate places. [2020-10-11 18:37:06,953 INFO L481 AbstractCegarLoop]: Abstraction has has 111 places, 75 transitions, 394 flow [2020-10-11 18:37:06,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:37:06,953 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:37:06,953 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:37:06,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 18:37:06,953 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:37:06,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:37:06,954 INFO L82 PathProgramCache]: Analyzing trace with hash 8068767, now seen corresponding path program 1 times [2020-10-11 18:37:06,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:37:06,958 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709600945] [2020-10-11 18:37:06,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:37:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:37:07,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:37:07,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709600945] [2020-10-11 18:37:07,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:37:07,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-11 18:37:07,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390185792] [2020-10-11 18:37:07,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 18:37:07,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:37:07,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 18:37:07,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-11 18:37:07,333 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 80 [2020-10-11 18:37:07,334 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 75 transitions, 394 flow. Second operand 9 states. [2020-10-11 18:37:07,334 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:37:07,334 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 80 [2020-10-11 18:37:07,334 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:37:07,570 INFO L129 PetriNetUnfolder]: 74/364 cut-off events. [2020-10-11 18:37:07,570 INFO L130 PetriNetUnfolder]: For 1968/2429 co-relation queries the response was YES. [2020-10-11 18:37:07,572 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1477 conditions, 364 events. 74/364 cut-off events. For 1968/2429 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2273 event pairs, 0 based on Foata normal form. 92/441 useless extension candidates. Maximal degree in co-relation 1437. Up to 137 conditions per place. [2020-10-11 18:37:07,573 INFO L132 encePairwiseOnDemand]: 70/80 looper letters, 0 selfloop transitions, 0 changer transitions 80/80 dead transitions. [2020-10-11 18:37:07,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 80 transitions, 532 flow [2020-10-11 18:37:07,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:37:07,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:37:07,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 826 transitions. [2020-10-11 18:37:07,577 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8604166666666667 [2020-10-11 18:37:07,577 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 826 transitions. [2020-10-11 18:37:07,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 826 transitions. [2020-10-11 18:37:07,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:37:07,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 826 transitions. [2020-10-11 18:37:07,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:37:07,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:37:07,582 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:37:07,582 INFO L185 Difference]: Start difference. First operand has 111 places, 75 transitions, 394 flow. Second operand 12 states and 826 transitions. [2020-10-11 18:37:07,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 80 transitions, 532 flow [2020-10-11 18:37:07,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 80 transitions, 408 flow, removed 45 selfloop flow, removed 18 redundant places. [2020-10-11 18:37:07,590 INFO L241 Difference]: Finished difference. Result has 94 places, 0 transitions, 0 flow [2020-10-11 18:37:07,590 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=0, PETRI_PLACES=94, PETRI_TRANSITIONS=0} [2020-10-11 18:37:07,590 INFO L341 CegarLoopForPetriNet]: 75 programPoint places, 19 predicate places. [2020-10-11 18:37:07,590 INFO L481 AbstractCegarLoop]: Abstraction has has 94 places, 0 transitions, 0 flow [2020-10-11 18:37:07,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 18:37:07,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 18:37:07,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:37:07 BasicIcfg [2020-10-11 18:37:07,597 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:37:07,600 INFO L168 Benchmark]: Toolchain (without parser) took 8364.65 ms. Allocated memory was 253.2 MB in the beginning and 484.4 MB in the end (delta: 231.2 MB). Free memory was 206.9 MB in the beginning and 176.0 MB in the end (delta: 30.8 MB). Peak memory consumption was 262.1 MB. Max. memory is 14.2 GB. [2020-10-11 18:37:07,600 INFO L168 Benchmark]: CDTParser took 1.32 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:37:07,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.41 ms. Allocated memory was 253.2 MB in the beginning and 320.3 MB in the end (delta: 67.1 MB). Free memory was 206.9 MB in the beginning and 275.4 MB in the end (delta: -68.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 14.2 GB. [2020-10-11 18:37:07,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.40 ms. Allocated memory is still 320.3 MB. Free memory was 275.4 MB in the beginning and 272.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:37:07,603 INFO L168 Benchmark]: Boogie Preprocessor took 25.44 ms. Allocated memory is still 320.3 MB. Free memory was 272.9 MB in the beginning and 270.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:37:07,603 INFO L168 Benchmark]: RCFGBuilder took 468.47 ms. Allocated memory is still 320.3 MB. Free memory was 270.4 MB in the beginning and 246.0 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-11 18:37:07,604 INFO L168 Benchmark]: TraceAbstraction took 7113.30 ms. Allocated memory was 320.3 MB in the beginning and 484.4 MB in the end (delta: 164.1 MB). Free memory was 246.0 MB in the beginning and 176.0 MB in the end (delta: 70.0 MB). Peak memory consumption was 234.1 MB. Max. memory is 14.2 GB. [2020-10-11 18:37:07,608 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.32 ms. Allocated memory is still 253.2 MB. Free memory is still 229.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 704.41 ms. Allocated memory was 253.2 MB in the beginning and 320.3 MB in the end (delta: 67.1 MB). Free memory was 206.9 MB in the beginning and 275.4 MB in the end (delta: -68.5 MB). Peak memory consumption was 33.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.40 ms. Allocated memory is still 320.3 MB. Free memory was 275.4 MB in the beginning and 272.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 25.44 ms. Allocated memory is still 320.3 MB. Free memory was 272.9 MB in the beginning and 270.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 468.47 ms. Allocated memory is still 320.3 MB. Free memory was 270.4 MB in the beginning and 246.0 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 7113.30 ms. Allocated memory was 320.3 MB in the beginning and 484.4 MB in the end (delta: 164.1 MB). Free memory was 246.0 MB in the beginning and 176.0 MB in the end (delta: 70.0 MB). Peak memory consumption was 234.1 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 5.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 234 SDtfs, 344 SDslu, 780 SDs, 0 SdLazy, 860 SolverSat, 156 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=394occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 499 NumberOfCodeBlocks, 499 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 488 ConstructedInterpolants, 0 QuantifiedInterpolants, 63406 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...