/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/thin001_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:48:38,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:48:38,386 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:48:38,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:48:38,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:48:38,412 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:48:38,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:48:38,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:48:38,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:48:38,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:48:38,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:48:38,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:48:38,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:48:38,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:48:38,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:48:38,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:48:38,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:48:38,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:48:38,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:48:38,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:48:38,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:48:38,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:48:38,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:48:38,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:48:38,434 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-11 18:48:38,434 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-11 18:48:38,434 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-11 18:48:38,435 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-11 18:48:38,435 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-11 18:48:38,436 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-11 18:48:38,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:48:38,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:48:38,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:48:38,439 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:48:38,443 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:48:38,443 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:48:38,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:48:38,444 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:48:38,444 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:48:38,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:48:38,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:48:38,446 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 18:48:38,469 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:48:38,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:48:38,470 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:48:38,470 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:48:38,471 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:48:38,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:48:38,471 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:48:38,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:48:38,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:48:38,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:48:38,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:48:38,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:48:38,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:48:38,472 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:48:38,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:48:38,473 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:48:38,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:48:38,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:48:38,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:48:38,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:48:38,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:48:38,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:48:38,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:48:38,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:48:38,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:48:38,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:48:38,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:48:38,475 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:48:38,475 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:48:38,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:48:38,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:48:38,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:48:38,775 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:48:38,777 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:48:38,777 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:48:38,778 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-10-11 18:48:38,844 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed6b350b/d20e865c3ce54291be9803ebf04beda4/FLAG9f8118aea [2020-10-11 18:48:39,348 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:48:39,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.opt.i [2020-10-11 18:48:39,363 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed6b350b/d20e865c3ce54291be9803ebf04beda4/FLAG9f8118aea [2020-10-11 18:48:39,704 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed6b350b/d20e865c3ce54291be9803ebf04beda4 [2020-10-11 18:48:39,712 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:48:39,714 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:48:39,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:48:39,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:48:39,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:48:39,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:48:39" (1/1) ... [2020-10-11 18:48:39,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d1123c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:39, skipping insertion in model container [2020-10-11 18:48:39,725 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:48:39" (1/1) ... [2020-10-11 18:48:39,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:48:39,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:48:40,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:48:40,215 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:48:40,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:48:40,357 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:48:40,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40 WrapperNode [2020-10-11 18:48:40,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:48:40,359 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:48:40,359 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:48:40,359 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:48:40,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:48:40,411 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:48:40,411 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:48:40,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:48:40,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (1/1) ... [2020-10-11 18:48:40,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:48:40,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:48:40,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:48:40,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:48:40,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (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 18:48:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:48:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:48:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:48:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:48:40,518 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:48:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:48:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:48:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:48:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:48:40,519 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:48:40,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:48:40,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:48:40,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:48:40,522 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 18:48:40,893 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:48:40,893 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-11 18:48:40,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:48:40 BoogieIcfgContainer [2020-10-11 18:48:40,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:48:40,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:48:40,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:48:40,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:48:40,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:48:39" (1/3) ... [2020-10-11 18:48:40,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48430dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:48:40, skipping insertion in model container [2020-10-11 18:48:40,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:48:40" (2/3) ... [2020-10-11 18:48:40,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48430dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:48:40, skipping insertion in model container [2020-10-11 18:48:40,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:48:40" (3/3) ... [2020-10-11 18:48:40,904 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.opt.i [2020-10-11 18:48:40,915 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:48:40,923 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-11 18:48:40,924 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:48:40,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,952 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,952 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,954 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,954 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,955 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,955 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,955 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,956 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,956 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,961 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,961 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,961 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,961 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,968 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,968 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,969 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,969 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,972 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,972 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,972 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:48:40,992 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-11 18:48:41,014 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:48:41,015 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:48:41,015 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:48:41,015 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:48:41,015 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:48:41,015 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:48:41,015 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:48:41,016 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:48:41,030 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-11 18:48:41,073 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-11 18:48:41,074 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:48:41,079 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-11 18:48:41,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 79 places, 71 transitions, 157 flow [2020-10-11 18:48:41,085 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 57 transitions, 123 flow [2020-10-11 18:48:41,105 INFO L129 PetriNetUnfolder]: 1/56 cut-off events. [2020-10-11 18:48:41,105 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:48:41,105 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:48:41,107 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] [2020-10-11 18:48:41,107 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:48:41,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:48:41,113 INFO L82 PathProgramCache]: Analyzing trace with hash 642340523, now seen corresponding path program 1 times [2020-10-11 18:48:41,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:48:41,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683690335] [2020-10-11 18:48:41,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:48:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:48:41,521 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 18:48:41,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683690335] [2020-10-11 18:48:41,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:48:41,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:48:41,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191920292] [2020-10-11 18:48:41,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:48:41,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:48:41,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:48:41,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:48:41,767 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 71 [2020-10-11 18:48:41,769 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 57 transitions, 123 flow. Second operand 6 states. [2020-10-11 18:48:41,770 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:48:41,770 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 71 [2020-10-11 18:48:41,772 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:48:41,933 INFO L129 PetriNetUnfolder]: 3/71 cut-off events. [2020-10-11 18:48:41,933 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:48:41,934 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 71 events. 3/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 96 event pairs, 0 based on Foata normal form. 4/74 useless extension candidates. Maximal degree in co-relation 75. Up to 7 conditions per place. [2020-10-11 18:48:41,935 INFO L132 encePairwiseOnDemand]: 64/71 looper letters, 6 selfloop transitions, 2 changer transitions 11/66 dead transitions. [2020-10-11 18:48:41,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 66 transitions, 177 flow [2020-10-11 18:48:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:48:41,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:48:41,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 571 transitions. [2020-10-11 18:48:41,955 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8935837245696401 [2020-10-11 18:48:41,956 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 571 transitions. [2020-10-11 18:48:41,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 571 transitions. [2020-10-11 18:48:41,959 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:48:41,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 571 transitions. [2020-10-11 18:48:41,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:48:41,977 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:48:41,977 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:48:41,979 INFO L185 Difference]: Start difference. First operand has 66 places, 57 transitions, 123 flow. Second operand 9 states and 571 transitions. [2020-10-11 18:48:41,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 66 transitions, 177 flow [2020-10-11 18:48:41,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 66 transitions, 174 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 18:48:41,990 INFO L241 Difference]: Finished difference. Result has 78 places, 55 transitions, 136 flow [2020-10-11 18:48:41,993 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=136, PETRI_PLACES=78, PETRI_TRANSITIONS=55} [2020-10-11 18:48:41,994 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 12 predicate places. [2020-10-11 18:48:41,994 INFO L481 AbstractCegarLoop]: Abstraction has has 78 places, 55 transitions, 136 flow [2020-10-11 18:48:41,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:48:41,994 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:48:41,995 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:48:41,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:48:41,995 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:48:41,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:48:41,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1426036756, now seen corresponding path program 1 times [2020-10-11 18:48:41,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:48:41,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194340916] [2020-10-11 18:48:41,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:48:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:48:42,146 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 18:48:42,146 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194340916] [2020-10-11 18:48:42,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:48:42,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:48:42,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881360966] [2020-10-11 18:48:42,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:48:42,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:48:42,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:48:42,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:48:42,326 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 71 [2020-10-11 18:48:42,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 55 transitions, 136 flow. Second operand 6 states. [2020-10-11 18:48:42,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:48:42,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 71 [2020-10-11 18:48:42,327 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:48:42,443 INFO L129 PetriNetUnfolder]: 3/78 cut-off events. [2020-10-11 18:48:42,443 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-11 18:48:42,444 INFO L80 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 78 events. 3/78 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 117 event pairs, 0 based on Foata normal form. 2/80 useless extension candidates. Maximal degree in co-relation 117. Up to 7 conditions per place. [2020-10-11 18:48:42,444 INFO L132 encePairwiseOnDemand]: 65/71 looper letters, 6 selfloop transitions, 2 changer transitions 10/65 dead transitions. [2020-10-11 18:48:42,444 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 65 transitions, 210 flow [2020-10-11 18:48:42,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:48:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:48:42,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 569 transitions. [2020-10-11 18:48:42,448 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8904538341158059 [2020-10-11 18:48:42,448 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 569 transitions. [2020-10-11 18:48:42,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 569 transitions. [2020-10-11 18:48:42,449 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:48:42,449 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 569 transitions. [2020-10-11 18:48:42,450 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:48:42,452 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:48:42,452 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:48:42,452 INFO L185 Difference]: Start difference. First operand has 78 places, 55 transitions, 136 flow. Second operand 9 states and 569 transitions. [2020-10-11 18:48:42,452 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 65 transitions, 210 flow [2020-10-11 18:48:42,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 65 transitions, 178 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:48:42,457 INFO L241 Difference]: Finished difference. Result has 78 places, 55 transitions, 140 flow [2020-10-11 18:48:42,457 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=140, PETRI_PLACES=78, PETRI_TRANSITIONS=55} [2020-10-11 18:48:42,458 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 12 predicate places. [2020-10-11 18:48:42,458 INFO L481 AbstractCegarLoop]: Abstraction has has 78 places, 55 transitions, 140 flow [2020-10-11 18:48:42,458 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:48:42,458 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:48:42,458 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:48:42,459 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:48:42,459 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:48:42,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:48:42,459 INFO L82 PathProgramCache]: Analyzing trace with hash 25753773, now seen corresponding path program 1 times [2020-10-11 18:48:42,460 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:48:42,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117432891] [2020-10-11 18:48:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:48:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:48:42,589 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 18:48:42,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117432891] [2020-10-11 18:48:42,590 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:48:42,590 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:48:42,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574321987] [2020-10-11 18:48:42,591 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:48:42,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:48:42,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:48:42,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:48:42,805 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2020-10-11 18:48:42,805 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 55 transitions, 140 flow. Second operand 7 states. [2020-10-11 18:48:42,806 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:48:42,806 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2020-10-11 18:48:42,806 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:48:42,957 INFO L129 PetriNetUnfolder]: 4/76 cut-off events. [2020-10-11 18:48:42,958 INFO L130 PetriNetUnfolder]: For 25/32 co-relation queries the response was YES. [2020-10-11 18:48:42,959 INFO L80 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 76 events. 4/76 cut-off events. For 25/32 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 124 event pairs, 0 based on Foata normal form. 2/77 useless extension candidates. Maximal degree in co-relation 127. Up to 7 conditions per place. [2020-10-11 18:48:42,959 INFO L132 encePairwiseOnDemand]: 63/71 looper letters, 6 selfloop transitions, 4 changer transitions 12/67 dead transitions. [2020-10-11 18:48:42,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 67 transitions, 235 flow [2020-10-11 18:48:42,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:48:42,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:48:42,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 614 transitions. [2020-10-11 18:48:42,963 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8647887323943662 [2020-10-11 18:48:42,963 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 614 transitions. [2020-10-11 18:48:42,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 614 transitions. [2020-10-11 18:48:42,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:48:42,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 614 transitions. [2020-10-11 18:48:42,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:48:42,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:48:42,968 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:48:42,968 INFO L185 Difference]: Start difference. First operand has 78 places, 55 transitions, 140 flow. Second operand 10 states and 614 transitions. [2020-10-11 18:48:42,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 67 transitions, 235 flow [2020-10-11 18:48:42,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 67 transitions, 201 flow, removed 14 selfloop flow, removed 8 redundant places. [2020-10-11 18:48:42,973 INFO L241 Difference]: Finished difference. Result has 81 places, 55 transitions, 154 flow [2020-10-11 18:48:42,973 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=154, PETRI_PLACES=81, PETRI_TRANSITIONS=55} [2020-10-11 18:48:42,974 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2020-10-11 18:48:42,974 INFO L481 AbstractCegarLoop]: Abstraction has has 81 places, 55 transitions, 154 flow [2020-10-11 18:48:42,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:48:42,974 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:48:42,974 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 18:48:42,975 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:48:42,975 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:48:42,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:48:42,976 INFO L82 PathProgramCache]: Analyzing trace with hash 434489906, now seen corresponding path program 1 times [2020-10-11 18:48:42,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:48:42,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660839224] [2020-10-11 18:48:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:48:43,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:48:43,111 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 18:48:43,112 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660839224] [2020-10-11 18:48:43,112 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:48:43,112 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:48:43,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468019800] [2020-10-11 18:48:43,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:48:43,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:48:43,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:48:43,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:48:43,313 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2020-10-11 18:48:43,314 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 55 transitions, 154 flow. Second operand 7 states. [2020-10-11 18:48:43,314 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:48:43,314 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2020-10-11 18:48:43,315 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:48:43,466 INFO L129 PetriNetUnfolder]: 4/76 cut-off events. [2020-10-11 18:48:43,467 INFO L130 PetriNetUnfolder]: For 49/54 co-relation queries the response was YES. [2020-10-11 18:48:43,467 INFO L80 FinitePrefix]: Finished finitePrefix Result has 155 conditions, 76 events. 4/76 cut-off events. For 49/54 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs, 0 based on Foata normal form. 3/78 useless extension candidates. Maximal degree in co-relation 137. Up to 7 conditions per place. [2020-10-11 18:48:43,468 INFO L132 encePairwiseOnDemand]: 63/71 looper letters, 6 selfloop transitions, 4 changer transitions 12/67 dead transitions. [2020-10-11 18:48:43,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 67 transitions, 255 flow [2020-10-11 18:48:43,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:48:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:48:43,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 614 transitions. [2020-10-11 18:48:43,472 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8647887323943662 [2020-10-11 18:48:43,472 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 614 transitions. [2020-10-11 18:48:43,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 614 transitions. [2020-10-11 18:48:43,473 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:48:43,473 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 614 transitions. [2020-10-11 18:48:43,474 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:48:43,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:48:43,477 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:48:43,477 INFO L185 Difference]: Start difference. First operand has 81 places, 55 transitions, 154 flow. Second operand 10 states and 614 transitions. [2020-10-11 18:48:43,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 67 transitions, 255 flow [2020-10-11 18:48:43,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 67 transitions, 205 flow, removed 20 selfloop flow, removed 10 redundant places. [2020-10-11 18:48:43,486 INFO L241 Difference]: Finished difference. Result has 82 places, 55 transitions, 158 flow [2020-10-11 18:48:43,487 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=158, PETRI_PLACES=82, PETRI_TRANSITIONS=55} [2020-10-11 18:48:43,495 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 16 predicate places. [2020-10-11 18:48:43,495 INFO L481 AbstractCegarLoop]: Abstraction has has 82 places, 55 transitions, 158 flow [2020-10-11 18:48:43,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:48:43,495 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:48:43,496 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-11 18:48:43,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:48:43,496 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:48:43,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:48:43,496 INFO L82 PathProgramCache]: Analyzing trace with hash -197212386, now seen corresponding path program 1 times [2020-10-11 18:48:43,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:48:43,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401884177] [2020-10-11 18:48:43,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:48:43,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:48:43,628 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 18:48:43,628 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401884177] [2020-10-11 18:48:43,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:48:43,629 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:48:43,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789698588] [2020-10-11 18:48:43,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:48:43,630 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:48:43,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:48:43,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:48:43,796 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 59 out of 71 [2020-10-11 18:48:43,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 55 transitions, 158 flow. Second operand 7 states. [2020-10-11 18:48:43,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:48:43,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 59 of 71 [2020-10-11 18:48:43,797 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:48:43,944 INFO L129 PetriNetUnfolder]: 4/64 cut-off events. [2020-10-11 18:48:43,944 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2020-10-11 18:48:43,944 INFO L80 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 64 events. 4/64 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 2/66 useless extension candidates. Maximal degree in co-relation 114. Up to 5 conditions per place. [2020-10-11 18:48:43,945 INFO L132 encePairwiseOnDemand]: 64/71 looper letters, 0 selfloop transitions, 0 changer transitions 60/60 dead transitions. [2020-10-11 18:48:43,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 60 transitions, 212 flow [2020-10-11 18:48:43,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-11 18:48:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-11 18:48:43,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 608 transitions. [2020-10-11 18:48:43,948 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.856338028169014 [2020-10-11 18:48:43,948 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 608 transitions. [2020-10-11 18:48:43,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 608 transitions. [2020-10-11 18:48:43,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:48:43,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 608 transitions. [2020-10-11 18:48:43,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 11 states. [2020-10-11 18:48:43,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 11 states. [2020-10-11 18:48:43,953 INFO L81 ComplementDD]: Finished complementDD. Result 11 states. [2020-10-11 18:48:43,953 INFO L185 Difference]: Start difference. First operand has 82 places, 55 transitions, 158 flow. Second operand 10 states and 608 transitions. [2020-10-11 18:48:43,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 60 transitions, 212 flow [2020-10-11 18:48:43,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 60 transitions, 178 flow, removed 12 selfloop flow, removed 8 redundant places. [2020-10-11 18:48:43,956 INFO L241 Difference]: Finished difference. Result has 75 places, 0 transitions, 0 flow [2020-10-11 18:48:43,956 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=75, PETRI_TRANSITIONS=0} [2020-10-11 18:48:43,956 INFO L341 CegarLoopForPetriNet]: 66 programPoint places, 9 predicate places. [2020-10-11 18:48:43,956 INFO L481 AbstractCegarLoop]: Abstraction has has 75 places, 0 transitions, 0 flow [2020-10-11 18:48:43,956 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:48:43,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:48:43,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:48:43 BasicIcfg [2020-10-11 18:48:43,963 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:48:43,966 INFO L168 Benchmark]: Toolchain (without parser) took 4250.95 ms. Allocated memory was 251.1 MB in the beginning and 370.7 MB in the end (delta: 119.5 MB). Free memory was 206.9 MB in the beginning and 208.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 118.0 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:43,967 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:48:43,968 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.15 ms. Allocated memory was 251.1 MB in the beginning and 313.0 MB in the end (delta: 61.9 MB). Free memory was 206.9 MB in the beginning and 266.2 MB in the end (delta: -59.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:43,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.89 ms. Allocated memory is still 313.0 MB. Free memory was 266.2 MB in the beginning and 263.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:43,969 INFO L168 Benchmark]: Boogie Preprocessor took 28.07 ms. Allocated memory is still 313.0 MB. Free memory is still 263.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-11 18:48:43,970 INFO L168 Benchmark]: RCFGBuilder took 455.97 ms. Allocated memory is still 313.0 MB. Free memory was 263.7 MB in the beginning and 239.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:43,971 INFO L168 Benchmark]: TraceAbstraction took 3066.52 ms. Allocated memory was 313.0 MB in the beginning and 370.7 MB in the end (delta: 57.7 MB). Free memory was 239.4 MB in the beginning and 208.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 88.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:48:43,975 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 251.1 MB. Free memory is still 227.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 643.15 ms. Allocated memory was 251.1 MB in the beginning and 313.0 MB in the end (delta: 61.9 MB). Free memory was 206.9 MB in the beginning and 266.2 MB in the end (delta: -59.3 MB). Peak memory consumption was 29.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.89 ms. Allocated memory is still 313.0 MB. Free memory was 266.2 MB in the beginning and 263.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 28.07 ms. Allocated memory is still 313.0 MB. Free memory is still 263.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * RCFGBuilder took 455.97 ms. Allocated memory is still 313.0 MB. Free memory was 263.7 MB in the beginning and 239.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3066.52 ms. Allocated memory was 313.0 MB in the beginning and 370.7 MB in the end (delta: 57.7 MB). Free memory was 239.4 MB in the beginning and 208.5 MB in the end (delta: 30.9 MB). Peak memory consumption was 88.5 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 4 procedures, 70 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: 2.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 133 SDtfs, 136 SDslu, 380 SDs, 0 SdLazy, 310 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=158occurred in iteration=4, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 206 NumberOfCodeBlocks, 206 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 201 ConstructedInterpolants, 0 QuantifiedInterpolants, 25599 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...