/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/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:38:43,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:38:43,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:38:43,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:38:43,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:38:43,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:38:43,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:38:43,538 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:38:43,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:38:43,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:38:43,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:38:43,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:38:43,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:38:43,549 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:38:43,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:38:43,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:38:43,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:38:43,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:38:43,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:38:43,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:38:43,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:38:43,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:38:43,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:38:43,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:38:43,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:38:43,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:38:43,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:38:43,591 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:38:43,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:38:43,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:38:43,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:38:43,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:38:43,596 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:38:43,597 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:38:43,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:38:43,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:38:43,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:38:43,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:38:43,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:38:43,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:38:43,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:38:43,607 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 18:38:43,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:38:43,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:38:43,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:38:43,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:38:43,651 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:38:43,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:38:43,652 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:38:43,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:38:43,652 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:38:43,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:38:43,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:38:43,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:38:43,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:38:43,655 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:38:43,655 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:38:43,655 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:38:43,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:38:43,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:38:43,656 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:38:43,656 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:38:43,656 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:38:43,657 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:38:43,657 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:38:43,657 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:38:43,657 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:38:43,657 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:38:43,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:38:43,658 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:38:43,658 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:38:43,658 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:38:43,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:38:43,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:38:44,000 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:38:44,001 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:38:44,001 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:38:44,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-11 18:38:44,069 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b35896d/ee06beb4dd2048b3b7278d8e2f0ee80b/FLAGd922c5cc6 [2020-10-11 18:38:44,636 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:38:44,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2020-10-11 18:38:44,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b35896d/ee06beb4dd2048b3b7278d8e2f0ee80b/FLAGd922c5cc6 [2020-10-11 18:38:44,829 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62b35896d/ee06beb4dd2048b3b7278d8e2f0ee80b [2020-10-11 18:38:44,838 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:38:44,840 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:38:44,843 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:38:44,843 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:38:44,846 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:38:44,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:38:44" (1/1) ... [2020-10-11 18:38:44,851 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66a13334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:44, skipping insertion in model container [2020-10-11 18:38:44,851 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:38:44" (1/1) ... [2020-10-11 18:38:44,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:38:44,922 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:38:45,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:38:45,298 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:38:45,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:38:45,570 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:38:45,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45 WrapperNode [2020-10-11 18:38:45,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:38:45,573 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:38:45,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:38:45,574 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:38:45,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:38:45,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:38:45,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:38:45,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:38:45,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,634 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,644 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (1/1) ... [2020-10-11 18:38:45,650 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:38:45,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:38:45,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:38:45,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:38:45,651 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (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 18:38:45,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:38:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:38:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:38:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:38:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:38:45,717 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:38:45,717 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:38:45,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:38:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:38:45,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:38:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-11 18:38:45,718 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-11 18:38:45,718 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:38:45,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:38:45,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:38:45,721 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 18:38:46,068 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:38:46,068 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:38:46,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:38:46 BoogieIcfgContainer [2020-10-11 18:38:46,071 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:38:46,072 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:38:46,072 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:38:46,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:38:46,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:38:44" (1/3) ... [2020-10-11 18:38:46,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ac6e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:38:46, skipping insertion in model container [2020-10-11 18:38:46,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:38:45" (2/3) ... [2020-10-11 18:38:46,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ac6e1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:38:46, skipping insertion in model container [2020-10-11 18:38:46,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:38:46" (3/3) ... [2020-10-11 18:38:46,088 INFO L111 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2020-10-11 18:38:46,101 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:38:46,109 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:38:46,110 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:38:46,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,140 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,141 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,141 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,142 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,142 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,143 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,143 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,143 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,144 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,144 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,145 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,145 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,146 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,146 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,146 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,146 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,147 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,151 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,151 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,151 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,151 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,157 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,157 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,157 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,162 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,162 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,165 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,165 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:38:46,180 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-11 18:38:46,199 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:38:46,199 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:38:46,199 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:38:46,199 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:38:46,200 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:38:46,200 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:38:46,200 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:38:46,200 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:38:46,214 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 81 transitions, 182 flow [2020-10-11 18:38:46,262 INFO L129 PetriNetUnfolder]: 2/77 cut-off events. [2020-10-11 18:38:46,263 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:38:46,268 INFO L80 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 2/77 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. 0/74 useless extension candidates. Maximal degree in co-relation 67. Up to 2 conditions per place. [2020-10-11 18:38:46,268 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 81 transitions, 182 flow [2020-10-11 18:38:46,274 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 76 places, 64 transitions, 140 flow [2020-10-11 18:38:46,296 INFO L129 PetriNetUnfolder]: 1/63 cut-off events. [2020-10-11 18:38:46,296 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:38:46,297 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:46,298 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] [2020-10-11 18:38:46,298 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:46,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:46,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1175723912, now seen corresponding path program 1 times [2020-10-11 18:38:46,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:46,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564141919] [2020-10-11 18:38:46,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:46,769 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 18:38:46,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564141919] [2020-10-11 18:38:46,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:46,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:38:46,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365143235] [2020-10-11 18:38:46,783 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:38:46,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:46,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:38:46,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:38:47,000 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 81 [2020-10-11 18:38:47,003 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 64 transitions, 140 flow. Second operand 6 states. [2020-10-11 18:38:47,003 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:47,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 81 [2020-10-11 18:38:47,005 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:47,200 INFO L129 PetriNetUnfolder]: 24/137 cut-off events. [2020-10-11 18:38:47,200 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:38:47,202 INFO L80 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 137 events. 24/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 435 event pairs, 5 based on Foata normal form. 6/140 useless extension candidates. Maximal degree in co-relation 185. Up to 31 conditions per place. [2020-10-11 18:38:47,204 INFO L132 encePairwiseOnDemand]: 73/81 looper letters, 8 selfloop transitions, 3 changer transitions 19/84 dead transitions. [2020-10-11 18:38:47,204 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 84 transitions, 240 flow [2020-10-11 18:38:47,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:38:47,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:38:47,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 664 transitions. [2020-10-11 18:38:47,224 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9108367626886146 [2020-10-11 18:38:47,225 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 664 transitions. [2020-10-11 18:38:47,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 664 transitions. [2020-10-11 18:38:47,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:47,232 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 664 transitions. [2020-10-11 18:38:47,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:38:47,248 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:38:47,248 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:38:47,251 INFO L185 Difference]: Start difference. First operand has 76 places, 64 transitions, 140 flow. Second operand 9 states and 664 transitions. [2020-10-11 18:38:47,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 84 transitions, 240 flow [2020-10-11 18:38:47,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 84 transitions, 236 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-11 18:38:47,262 INFO L241 Difference]: Finished difference. Result has 87 places, 65 transitions, 177 flow [2020-10-11 18:38:47,265 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=72, 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=177, PETRI_PLACES=87, PETRI_TRANSITIONS=65} [2020-10-11 18:38:47,266 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 11 predicate places. [2020-10-11 18:38:47,266 INFO L481 AbstractCegarLoop]: Abstraction has has 87 places, 65 transitions, 177 flow [2020-10-11 18:38:47,266 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:38:47,266 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:47,267 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] [2020-10-11 18:38:47,267 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:38:47,267 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:47,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:47,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1181446377, now seen corresponding path program 1 times [2020-10-11 18:38:47,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:47,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769957045] [2020-10-11 18:38:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:47,449 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 18:38:47,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769957045] [2020-10-11 18:38:47,450 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:47,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:38:47,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873797641] [2020-10-11 18:38:47,453 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:38:47,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:47,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:38:47,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:38:47,619 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 81 [2020-10-11 18:38:47,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 65 transitions, 177 flow. Second operand 6 states. [2020-10-11 18:38:47,620 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:47,620 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 81 [2020-10-11 18:38:47,620 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:47,745 INFO L129 PetriNetUnfolder]: 14/117 cut-off events. [2020-10-11 18:38:47,745 INFO L130 PetriNetUnfolder]: For 117/119 co-relation queries the response was YES. [2020-10-11 18:38:47,747 INFO L80 FinitePrefix]: Finished finitePrefix Result has 261 conditions, 117 events. 14/117 cut-off events. For 117/119 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 293 event pairs, 5 based on Foata normal form. 3/117 useless extension candidates. Maximal degree in co-relation 230. Up to 21 conditions per place. [2020-10-11 18:38:47,748 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 6 selfloop transitions, 2 changer transitions 10/75 dead transitions. [2020-10-11 18:38:47,749 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 75 transitions, 251 flow [2020-10-11 18:38:47,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:38:47,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:38:47,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 659 transitions. [2020-10-11 18:38:47,752 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9039780521262003 [2020-10-11 18:38:47,752 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 659 transitions. [2020-10-11 18:38:47,753 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 659 transitions. [2020-10-11 18:38:47,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:47,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 659 transitions. [2020-10-11 18:38:47,756 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:38:47,758 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:38:47,758 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:38:47,758 INFO L185 Difference]: Start difference. First operand has 87 places, 65 transitions, 177 flow. Second operand 9 states and 659 transitions. [2020-10-11 18:38:47,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 75 transitions, 251 flow [2020-10-11 18:38:47,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 75 transitions, 234 flow, removed 7 selfloop flow, removed 4 redundant places. [2020-10-11 18:38:47,766 INFO L241 Difference]: Finished difference. Result has 92 places, 65 transitions, 188 flow [2020-10-11 18:38:47,766 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=188, PETRI_PLACES=92, PETRI_TRANSITIONS=65} [2020-10-11 18:38:47,767 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 16 predicate places. [2020-10-11 18:38:47,767 INFO L481 AbstractCegarLoop]: Abstraction has has 92 places, 65 transitions, 188 flow [2020-10-11 18:38:47,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:38:47,767 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:47,768 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 18:38:47,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:38:47,768 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:47,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:47,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1697821302, now seen corresponding path program 1 times [2020-10-11 18:38:47,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:47,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922879210] [2020-10-11 18:38:47,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:47,885 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 18:38:47,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922879210] [2020-10-11 18:38:47,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:47,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:38:47,886 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978989347] [2020-10-11 18:38:47,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:38:47,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:47,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:38:47,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:38:48,046 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 81 [2020-10-11 18:38:48,047 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 65 transitions, 188 flow. Second operand 6 states. [2020-10-11 18:38:48,047 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:48,047 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 81 [2020-10-11 18:38:48,048 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:48,179 INFO L129 PetriNetUnfolder]: 7/119 cut-off events. [2020-10-11 18:38:48,180 INFO L130 PetriNetUnfolder]: For 155/173 co-relation queries the response was YES. [2020-10-11 18:38:48,181 INFO L80 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 119 events. 7/119 cut-off events. For 155/173 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 332 event pairs, 0 based on Foata normal form. 5/121 useless extension candidates. Maximal degree in co-relation 248. Up to 18 conditions per place. [2020-10-11 18:38:48,182 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 12 selfloop transitions, 3 changer transitions 11/79 dead transitions. [2020-10-11 18:38:48,182 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 79 transitions, 336 flow [2020-10-11 18:38:48,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:38:48,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:38:48,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 656 transitions. [2020-10-11 18:38:48,186 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8998628257887518 [2020-10-11 18:38:48,186 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 656 transitions. [2020-10-11 18:38:48,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 656 transitions. [2020-10-11 18:38:48,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:48,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 656 transitions. [2020-10-11 18:38:48,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:38:48,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:38:48,191 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:38:48,191 INFO L185 Difference]: Start difference. First operand has 92 places, 65 transitions, 188 flow. Second operand 9 states and 656 transitions. [2020-10-11 18:38:48,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 79 transitions, 336 flow [2020-10-11 18:38:48,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 79 transitions, 284 flow, removed 24 selfloop flow, removed 8 redundant places. [2020-10-11 18:38:48,198 INFO L241 Difference]: Finished difference. Result has 93 places, 64 transitions, 191 flow [2020-10-11 18:38:48,198 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=78, 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=9, PETRI_FLOW=191, PETRI_PLACES=93, PETRI_TRANSITIONS=64} [2020-10-11 18:38:48,199 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 17 predicate places. [2020-10-11 18:38:48,199 INFO L481 AbstractCegarLoop]: Abstraction has has 93 places, 64 transitions, 191 flow [2020-10-11 18:38:48,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:38:48,199 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:48,199 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 18:38:48,200 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:38:48,200 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:48,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1362017610, now seen corresponding path program 1 times [2020-10-11 18:38:48,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:48,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774564022] [2020-10-11 18:38:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:48,328 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 18:38:48,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774564022] [2020-10-11 18:38:48,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:48,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:38:48,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569020138] [2020-10-11 18:38:48,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:38:48,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:48,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:38:48,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:38:48,591 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 81 [2020-10-11 18:38:48,592 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 64 transitions, 191 flow. Second operand 7 states. [2020-10-11 18:38:48,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:48,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 81 [2020-10-11 18:38:48,592 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:48,755 INFO L129 PetriNetUnfolder]: 18/150 cut-off events. [2020-10-11 18:38:48,756 INFO L130 PetriNetUnfolder]: For 334/364 co-relation queries the response was YES. [2020-10-11 18:38:48,757 INFO L80 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 150 events. 18/150 cut-off events. For 334/364 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 542 event pairs, 7 based on Foata normal form. 6/152 useless extension candidates. Maximal degree in co-relation 349. Up to 24 conditions per place. [2020-10-11 18:38:48,758 INFO L132 encePairwiseOnDemand]: 73/81 looper letters, 6 selfloop transitions, 4 changer transitions 12/76 dead transitions. [2020-10-11 18:38:48,758 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 76 transitions, 296 flow [2020-10-11 18:38:48,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:38:48,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:38:48,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 714 transitions. [2020-10-11 18:38:48,762 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8814814814814815 [2020-10-11 18:38:48,762 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 714 transitions. [2020-10-11 18:38:48,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 714 transitions. [2020-10-11 18:38:48,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:48,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 714 transitions. [2020-10-11 18:38:48,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:38:48,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:38:48,767 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:38:48,768 INFO L185 Difference]: Start difference. First operand has 93 places, 64 transitions, 191 flow. Second operand 10 states and 714 transitions. [2020-10-11 18:38:48,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 76 transitions, 296 flow [2020-10-11 18:38:48,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 76 transitions, 259 flow, removed 17 selfloop flow, removed 7 redundant places. [2020-10-11 18:38:48,773 INFO L241 Difference]: Finished difference. Result has 96 places, 64 transitions, 200 flow [2020-10-11 18:38:48,773 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=200, PETRI_PLACES=96, PETRI_TRANSITIONS=64} [2020-10-11 18:38:48,774 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 20 predicate places. [2020-10-11 18:38:48,774 INFO L481 AbstractCegarLoop]: Abstraction has has 96 places, 64 transitions, 200 flow [2020-10-11 18:38:48,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:38:48,774 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:48,774 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 18:38:48,775 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:38:48,775 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:48,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:48,775 INFO L82 PathProgramCache]: Analyzing trace with hash -1570654005, now seen corresponding path program 1 times [2020-10-11 18:38:48,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:48,776 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977328093] [2020-10-11 18:38:48,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:48,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:48,912 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 18:38:48,912 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977328093] [2020-10-11 18:38:48,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:48,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:38:48,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012618086] [2020-10-11 18:38:48,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:38:48,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:48,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:38:48,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:38:49,090 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 81 [2020-10-11 18:38:49,091 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 64 transitions, 200 flow. Second operand 6 states. [2020-10-11 18:38:49,091 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:49,091 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 81 [2020-10-11 18:38:49,091 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:49,231 INFO L129 PetriNetUnfolder]: 15/158 cut-off events. [2020-10-11 18:38:49,231 INFO L130 PetriNetUnfolder]: For 260/264 co-relation queries the response was YES. [2020-10-11 18:38:49,232 INFO L80 FinitePrefix]: Finished finitePrefix Result has 372 conditions, 158 events. 15/158 cut-off events. For 260/264 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 607 event pairs, 6 based on Foata normal form. 6/163 useless extension candidates. Maximal degree in co-relation 331. Up to 19 conditions per place. [2020-10-11 18:38:49,233 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 6 selfloop transitions, 2 changer transitions 10/74 dead transitions. [2020-10-11 18:38:49,233 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 74 transitions, 290 flow [2020-10-11 18:38:49,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:38:49,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:38:49,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 659 transitions. [2020-10-11 18:38:49,236 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9039780521262003 [2020-10-11 18:38:49,236 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 659 transitions. [2020-10-11 18:38:49,237 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 659 transitions. [2020-10-11 18:38:49,237 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:49,238 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 659 transitions. [2020-10-11 18:38:49,239 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:38:49,241 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:38:49,242 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:38:49,242 INFO L185 Difference]: Start difference. First operand has 96 places, 64 transitions, 200 flow. Second operand 9 states and 659 transitions. [2020-10-11 18:38:49,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 74 transitions, 290 flow [2020-10-11 18:38:49,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 74 transitions, 244 flow, removed 18 selfloop flow, removed 10 redundant places. [2020-10-11 18:38:49,250 INFO L241 Difference]: Finished difference. Result has 95 places, 64 transitions, 194 flow [2020-10-11 18:38:49,251 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=194, PETRI_PLACES=95, PETRI_TRANSITIONS=64} [2020-10-11 18:38:49,251 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 19 predicate places. [2020-10-11 18:38:49,251 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 64 transitions, 194 flow [2020-10-11 18:38:49,251 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:38:49,251 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:49,253 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 18:38:49,253 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:38:49,254 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:49,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:49,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1359641494, now seen corresponding path program 1 times [2020-10-11 18:38:49,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:49,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817037195] [2020-10-11 18:38:49,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:49,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:49,425 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 18:38:49,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817037195] [2020-10-11 18:38:49,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:49,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:38:49,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956982899] [2020-10-11 18:38:49,428 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:38:49,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:49,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:38:49,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:38:49,558 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 81 [2020-10-11 18:38:49,559 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 64 transitions, 194 flow. Second operand 6 states. [2020-10-11 18:38:49,559 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:49,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 81 [2020-10-11 18:38:49,560 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:49,859 INFO L129 PetriNetUnfolder]: 546/1172 cut-off events. [2020-10-11 18:38:49,859 INFO L130 PetriNetUnfolder]: For 686/702 co-relation queries the response was YES. [2020-10-11 18:38:49,867 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2509 conditions, 1172 events. 546/1172 cut-off events. For 686/702 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 7922 event pairs, 45 based on Foata normal form. 28/1121 useless extension candidates. Maximal degree in co-relation 2470. Up to 422 conditions per place. [2020-10-11 18:38:49,874 INFO L132 encePairwiseOnDemand]: 71/81 looper letters, 12 selfloop transitions, 7 changer transitions 23/95 dead transitions. [2020-10-11 18:38:49,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 95 transitions, 340 flow [2020-10-11 18:38:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:38:49,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:38:49,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 647 transitions. [2020-10-11 18:38:49,877 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.887517146776406 [2020-10-11 18:38:49,877 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 647 transitions. [2020-10-11 18:38:49,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 647 transitions. [2020-10-11 18:38:49,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:49,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 647 transitions. [2020-10-11 18:38:49,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:38:49,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:38:49,882 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:38:49,882 INFO L185 Difference]: Start difference. First operand has 95 places, 64 transitions, 194 flow. Second operand 9 states and 647 transitions. [2020-10-11 18:38:49,883 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 95 transitions, 340 flow [2020-10-11 18:38:49,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 95 transitions, 324 flow, removed 6 selfloop flow, removed 8 redundant places. [2020-10-11 18:38:49,888 INFO L241 Difference]: Finished difference. Result has 95 places, 68 transitions, 246 flow [2020-10-11 18:38:49,889 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=246, PETRI_PLACES=95, PETRI_TRANSITIONS=68} [2020-10-11 18:38:49,889 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 19 predicate places. [2020-10-11 18:38:49,889 INFO L481 AbstractCegarLoop]: Abstraction has has 95 places, 68 transitions, 246 flow [2020-10-11 18:38:49,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:38:49,890 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:49,890 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 18:38:49,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:38:49,890 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:49,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:49,891 INFO L82 PathProgramCache]: Analyzing trace with hash 1013501064, now seen corresponding path program 1 times [2020-10-11 18:38:49,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:49,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216725621] [2020-10-11 18:38:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:50,034 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 18:38:50,034 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216725621] [2020-10-11 18:38:50,035 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:50,035 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:38:50,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277211671] [2020-10-11 18:38:50,036 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:38:50,041 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:50,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:38:50,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:38:50,231 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 81 [2020-10-11 18:38:50,232 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 68 transitions, 246 flow. Second operand 7 states. [2020-10-11 18:38:50,232 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:50,232 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 81 [2020-10-11 18:38:50,232 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:50,546 INFO L129 PetriNetUnfolder]: 403/906 cut-off events. [2020-10-11 18:38:50,546 INFO L130 PetriNetUnfolder]: For 2068/2671 co-relation queries the response was YES. [2020-10-11 18:38:50,552 INFO L80 FinitePrefix]: Finished finitePrefix Result has 3391 conditions, 906 events. 403/906 cut-off events. For 2068/2671 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 5779 event pairs, 16 based on Foata normal form. 44/903 useless extension candidates. Maximal degree in co-relation 3351. Up to 492 conditions per place. [2020-10-11 18:38:50,558 INFO L132 encePairwiseOnDemand]: 71/81 looper letters, 12 selfloop transitions, 11 changer transitions 23/99 dead transitions. [2020-10-11 18:38:50,558 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 99 transitions, 563 flow [2020-10-11 18:38:50,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:38:50,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:38:50,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 718 transitions. [2020-10-11 18:38:50,562 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8864197530864197 [2020-10-11 18:38:50,562 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 718 transitions. [2020-10-11 18:38:50,562 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 718 transitions. [2020-10-11 18:38:50,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:50,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 718 transitions. [2020-10-11 18:38:50,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:38:50,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:38:50,568 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:38:50,568 INFO L185 Difference]: Start difference. First operand has 95 places, 68 transitions, 246 flow. Second operand 10 states and 718 transitions. [2020-10-11 18:38:50,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 99 transitions, 563 flow [2020-10-11 18:38:50,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 99 transitions, 538 flow, removed 7 selfloop flow, removed 5 redundant places. [2020-10-11 18:38:50,579 INFO L241 Difference]: Finished difference. Result has 101 places, 72 transitions, 334 flow [2020-10-11 18:38:50,579 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=334, PETRI_PLACES=101, PETRI_TRANSITIONS=72} [2020-10-11 18:38:50,580 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 25 predicate places. [2020-10-11 18:38:50,580 INFO L481 AbstractCegarLoop]: Abstraction has has 101 places, 72 transitions, 334 flow [2020-10-11 18:38:50,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:38:50,581 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:50,581 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] [2020-10-11 18:38:50,581 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:38:50,581 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:50,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:50,582 INFO L82 PathProgramCache]: Analyzing trace with hash 459936255, now seen corresponding path program 1 times [2020-10-11 18:38:50,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:50,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386494044] [2020-10-11 18:38:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:50,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:50,724 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 18:38:50,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386494044] [2020-10-11 18:38:50,725 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:50,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:38:50,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413198672] [2020-10-11 18:38:50,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:38:50,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:50,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:38:50,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:38:50,865 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 81 [2020-10-11 18:38:50,866 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 72 transitions, 334 flow. Second operand 8 states. [2020-10-11 18:38:50,866 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:50,866 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 81 [2020-10-11 18:38:50,866 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:51,166 INFO L129 PetriNetUnfolder]: 194/515 cut-off events. [2020-10-11 18:38:51,166 INFO L130 PetriNetUnfolder]: For 3263/3773 co-relation queries the response was YES. [2020-10-11 18:38:51,169 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2571 conditions, 515 events. 194/515 cut-off events. For 3263/3773 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 2863 event pairs, 3 based on Foata normal form. 53/550 useless extension candidates. Maximal degree in co-relation 2527. Up to 261 conditions per place. [2020-10-11 18:38:51,174 INFO L132 encePairwiseOnDemand]: 71/81 looper letters, 12 selfloop transitions, 15 changer transitions 23/103 dead transitions. [2020-10-11 18:38:51,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 103 transitions, 812 flow [2020-10-11 18:38:51,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-11 18:38:51,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-11 18:38:51,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 789 transitions. [2020-10-11 18:38:51,180 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8855218855218855 [2020-10-11 18:38:51,180 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 789 transitions. [2020-10-11 18:38:51,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 789 transitions. [2020-10-11 18:38:51,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:51,182 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 789 transitions. [2020-10-11 18:38:51,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 12 states. [2020-10-11 18:38:51,188 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 12 states. [2020-10-11 18:38:51,188 INFO L81 ComplementDD]: Finished complementDD. Result 12 states. [2020-10-11 18:38:51,189 INFO L185 Difference]: Start difference. First operand has 101 places, 72 transitions, 334 flow. Second operand 11 states and 789 transitions. [2020-10-11 18:38:51,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 103 transitions, 812 flow [2020-10-11 18:38:51,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 103 transitions, 632 flow, removed 79 selfloop flow, removed 9 redundant places. [2020-10-11 18:38:51,202 INFO L241 Difference]: Finished difference. Result has 104 places, 76 transitions, 384 flow [2020-10-11 18:38:51,203 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=265, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=384, PETRI_PLACES=104, PETRI_TRANSITIONS=76} [2020-10-11 18:38:51,203 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 28 predicate places. [2020-10-11 18:38:51,204 INFO L481 AbstractCegarLoop]: Abstraction has has 104 places, 76 transitions, 384 flow [2020-10-11 18:38:51,204 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:38:51,204 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:51,204 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, 1] [2020-10-11 18:38:51,205 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:38:51,205 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:51,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:51,206 INFO L82 PathProgramCache]: Analyzing trace with hash -325425320, now seen corresponding path program 1 times [2020-10-11 18:38:51,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:51,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921007415] [2020-10-11 18:38:51,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:51,398 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 18:38:51,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921007415] [2020-10-11 18:38:51,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:51,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-11 18:38:51,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481443227] [2020-10-11 18:38:51,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-11 18:38:51,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:51,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-11 18:38:51,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-11 18:38:51,495 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 81 [2020-10-11 18:38:51,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 76 transitions, 384 flow. Second operand 9 states. [2020-10-11 18:38:51,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:51,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 81 [2020-10-11 18:38:51,496 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:51,722 INFO L129 PetriNetUnfolder]: 63/245 cut-off events. [2020-10-11 18:38:51,722 INFO L130 PetriNetUnfolder]: For 1358/1771 co-relation queries the response was YES. [2020-10-11 18:38:51,724 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 245 events. 63/245 cut-off events. For 1358/1771 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1053 event pairs, 0 based on Foata normal form. 53/288 useless extension candidates. Maximal degree in co-relation 1014. Up to 99 conditions per place. [2020-10-11 18:38:51,725 INFO L132 encePairwiseOnDemand]: 71/81 looper letters, 4 selfloop transitions, 19 changer transitions 15/91 dead transitions. [2020-10-11 18:38:51,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 91 transitions, 634 flow [2020-10-11 18:38:51,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:38:51,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:38:51,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 844 transitions. [2020-10-11 18:38:51,729 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8683127572016461 [2020-10-11 18:38:51,729 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 844 transitions. [2020-10-11 18:38:51,729 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 844 transitions. [2020-10-11 18:38:51,730 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:51,730 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 844 transitions. [2020-10-11 18:38:51,732 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:38:51,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:38:51,734 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:38:51,735 INFO L185 Difference]: Start difference. First operand has 104 places, 76 transitions, 384 flow. Second operand 12 states and 844 transitions. [2020-10-11 18:38:51,735 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 91 transitions, 634 flow [2020-10-11 18:38:51,738 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 91 transitions, 480 flow, removed 60 selfloop flow, removed 15 redundant places. [2020-10-11 18:38:51,740 INFO L241 Difference]: Finished difference. Result has 102 places, 76 transitions, 340 flow [2020-10-11 18:38:51,741 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=340, PETRI_PLACES=102, PETRI_TRANSITIONS=76} [2020-10-11 18:38:51,741 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 26 predicate places. [2020-10-11 18:38:51,741 INFO L481 AbstractCegarLoop]: Abstraction has has 102 places, 76 transitions, 340 flow [2020-10-11 18:38:51,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-11 18:38:51,741 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:51,742 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, 1, 1, 1] [2020-10-11 18:38:51,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-11 18:38:51,742 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:51,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2072716523, now seen corresponding path program 1 times [2020-10-11 18:38:51,743 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:51,743 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717306769] [2020-10-11 18:38:51,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:51,827 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 18:38:51,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717306769] [2020-10-11 18:38:51,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:51,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:38:51,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728585883] [2020-10-11 18:38:51,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:38:51,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:51,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:38:51,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:38:52,027 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 81 [2020-10-11 18:38:52,027 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 76 transitions, 340 flow. Second operand 7 states. [2020-10-11 18:38:52,028 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:52,028 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 81 [2020-10-11 18:38:52,028 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:52,148 INFO L129 PetriNetUnfolder]: 66/302 cut-off events. [2020-10-11 18:38:52,149 INFO L130 PetriNetUnfolder]: For 528/650 co-relation queries the response was YES. [2020-10-11 18:38:52,150 INFO L80 FinitePrefix]: Finished finitePrefix Result has 835 conditions, 302 events. 66/302 cut-off events. For 528/650 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1463 event pairs, 0 based on Foata normal form. 1/278 useless extension candidates. Maximal degree in co-relation 793. Up to 69 conditions per place. [2020-10-11 18:38:52,151 INFO L132 encePairwiseOnDemand]: 75/81 looper letters, 9 selfloop transitions, 1 changer transitions 5/81 dead transitions. [2020-10-11 18:38:52,152 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 81 transitions, 382 flow [2020-10-11 18:38:52,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:38:52,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:38:52,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 499 transitions. [2020-10-11 18:38:52,155 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8800705467372134 [2020-10-11 18:38:52,155 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 499 transitions. [2020-10-11 18:38:52,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 499 transitions. [2020-10-11 18:38:52,156 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:52,156 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 499 transitions. [2020-10-11 18:38:52,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:38:52,158 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:38:52,159 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:38:52,159 INFO L185 Difference]: Start difference. First operand has 102 places, 76 transitions, 340 flow. Second operand 7 states and 499 transitions. [2020-10-11 18:38:52,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 81 transitions, 382 flow [2020-10-11 18:38:52,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 81 transitions, 256 flow, removed 31 selfloop flow, removed 17 redundant places. [2020-10-11 18:38:52,164 INFO L241 Difference]: Finished difference. Result has 92 places, 76 transitions, 227 flow [2020-10-11 18:38:52,165 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=227, PETRI_PLACES=92, PETRI_TRANSITIONS=76} [2020-10-11 18:38:52,165 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 16 predicate places. [2020-10-11 18:38:52,165 INFO L481 AbstractCegarLoop]: Abstraction has has 92 places, 76 transitions, 227 flow [2020-10-11 18:38:52,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:38:52,165 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:38:52,165 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, 1, 1, 1] [2020-10-11 18:38:52,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-11 18:38:52,166 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:38:52,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:38:52,166 INFO L82 PathProgramCache]: Analyzing trace with hash 48031123, now seen corresponding path program 2 times [2020-10-11 18:38:52,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:38:52,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935922615] [2020-10-11 18:38:52,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:38:52,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:38:52,267 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 18:38:52,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935922615] [2020-10-11 18:38:52,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:38:52,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:38:52,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298730129] [2020-10-11 18:38:52,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:38:52,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:38:52,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:38:52,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:38:52,460 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 68 out of 81 [2020-10-11 18:38:52,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 76 transitions, 227 flow. Second operand 7 states. [2020-10-11 18:38:52,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:38:52,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 68 of 81 [2020-10-11 18:38:52,461 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:38:52,552 INFO L129 PetriNetUnfolder]: 72/344 cut-off events. [2020-10-11 18:38:52,553 INFO L130 PetriNetUnfolder]: For 29/32 co-relation queries the response was YES. [2020-10-11 18:38:52,554 INFO L80 FinitePrefix]: Finished finitePrefix Result has 560 conditions, 344 events. 72/344 cut-off events. For 29/32 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 1939 event pairs, 0 based on Foata normal form. 3/321 useless extension candidates. Maximal degree in co-relation 550. Up to 58 conditions per place. [2020-10-11 18:38:52,555 INFO L132 encePairwiseOnDemand]: 72/81 looper letters, 0 selfloop transitions, 0 changer transitions 77/77 dead transitions. [2020-10-11 18:38:52,555 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 77 transitions, 263 flow [2020-10-11 18:38:52,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:38:52,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:38:52,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 492 transitions. [2020-10-11 18:38:52,557 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8677248677248677 [2020-10-11 18:38:52,557 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 492 transitions. [2020-10-11 18:38:52,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 492 transitions. [2020-10-11 18:38:52,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:38:52,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 492 transitions. [2020-10-11 18:38:52,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:38:52,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:38:52,561 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:38:52,561 INFO L185 Difference]: Start difference. First operand has 92 places, 76 transitions, 227 flow. Second operand 7 states and 492 transitions. [2020-10-11 18:38:52,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 77 transitions, 263 flow [2020-10-11 18:38:52,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 77 transitions, 256 flow, removed 3 selfloop flow, removed 4 redundant places. [2020-10-11 18:38:52,563 INFO L241 Difference]: Finished difference. Result has 88 places, 0 transitions, 0 flow [2020-10-11 18:38:52,564 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=81, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=88, PETRI_TRANSITIONS=0} [2020-10-11 18:38:52,564 INFO L341 CegarLoopForPetriNet]: 76 programPoint places, 12 predicate places. [2020-10-11 18:38:52,564 INFO L481 AbstractCegarLoop]: Abstraction has has 88 places, 0 transitions, 0 flow [2020-10-11 18:38:52,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:38:52,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-11 18:38:52,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:38:52 BasicIcfg [2020-10-11 18:38:52,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:38:52,573 INFO L168 Benchmark]: Toolchain (without parser) took 7733.11 ms. Allocated memory was 250.1 MB in the beginning and 472.4 MB in the end (delta: 222.3 MB). Free memory was 205.9 MB in the beginning and 348.6 MB in the end (delta: -142.7 MB). Peak memory consumption was 79.6 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:52,574 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:38:52,574 INFO L168 Benchmark]: CACSL2BoogieTranslator took 730.18 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 205.9 MB in the beginning and 266.6 MB in the end (delta: -60.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:52,575 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.23 ms. Allocated memory is still 311.4 MB. Free memory was 266.6 MB in the beginning and 264.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:52,576 INFO L168 Benchmark]: Boogie Preprocessor took 28.20 ms. Allocated memory is still 311.4 MB. Free memory was 264.0 MB in the beginning and 261.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:52,577 INFO L168 Benchmark]: RCFGBuilder took 421.03 ms. Allocated memory is still 311.4 MB. Free memory was 261.5 MB in the beginning and 237.2 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:52,577 INFO L168 Benchmark]: TraceAbstraction took 6498.29 ms. Allocated memory was 311.4 MB in the beginning and 472.4 MB in the end (delta: 161.0 MB). Free memory was 237.2 MB in the beginning and 348.6 MB in the end (delta: -111.4 MB). Peak memory consumption was 49.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:38:52,581 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 250.1 MB. Free memory is still 226.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 730.18 ms. Allocated memory was 250.1 MB in the beginning and 311.4 MB in the end (delta: 61.3 MB). Free memory was 205.9 MB in the beginning and 266.6 MB in the end (delta: -60.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.23 ms. Allocated memory is still 311.4 MB. Free memory was 266.6 MB in the beginning and 264.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.20 ms. Allocated memory is still 311.4 MB. Free memory was 264.0 MB in the beginning and 261.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 421.03 ms. Allocated memory is still 311.4 MB. Free memory was 261.5 MB in the beginning and 237.2 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 6498.29 ms. Allocated memory was 311.4 MB in the beginning and 472.4 MB in the end (delta: 161.0 MB). Free memory was 237.2 MB in the beginning and 348.6 MB in the end (delta: -111.4 MB). Peak memory consumption was 49.5 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, 80 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: 6.3s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 214 SDtfs, 314 SDslu, 703 SDs, 0 SdLazy, 845 SolverSat, 147 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 136 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=384occurred in iteration=8, 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, 1.3s InterpolantComputationTime, 522 NumberOfCodeBlocks, 522 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 511 ConstructedInterpolants, 0 QuantifiedInterpolants, 70221 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...