/usr/bin/java -Xmx8000000000 -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/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 21:43:41,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 21:43:41,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 21:43:41,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 21:43:41,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 21:43:41,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 21:43:41,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 21:43:41,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 21:43:41,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 21:43:41,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 21:43:41,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 21:43:41,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 21:43:41,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 21:43:41,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 21:43:41,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 21:43:41,365 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 21:43:41,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 21:43:41,369 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 21:43:41,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 21:43:41,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 21:43:41,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 21:43:41,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 21:43:41,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 21:43:41,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 21:43:41,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 21:43:41,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 21:43:41,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 21:43:41,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 21:43:41,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 21:43:41,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 21:43:41,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 21:43:41,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 21:43:41,396 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 21:43:41,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 21:43:41,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 21:43:41,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 21:43:41,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 21:43:41,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 21:43:41,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 21:43:41,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 21:43:41,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 21:43:41,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-04-17 21:43:41,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 21:43:41,430 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 21:43:41,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 21:43:41,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 21:43:41,432 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 21:43:41,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 21:43:41,433 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 21:43:41,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 21:43:41,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 21:43:41,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 21:43:41,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 21:43:41,434 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 21:43:41,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 21:43:41,435 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 21:43:41,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 21:43:41,435 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 21:43:41,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 21:43:41,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 21:43:41,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 21:43:41,436 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 21:43:41,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 21:43:41,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 21:43:41,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 21:43:41,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 21:43:41,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 21:43:41,437 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 21:43:41,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 21:43:41,438 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 21:43:41,438 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 21:43:41,758 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 21:43:41,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 21:43:41,772 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 21:43:41,774 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 21:43:41,774 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 21:43:41,774 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2020-04-17 21:43:41,846 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb29d6b6b/c45a57bddf3e4bb5a08d551457d6e073/FLAG4a0d72396 [2020-04-17 21:43:42,383 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 21:43:42,384 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_pso.opt.i [2020-04-17 21:43:42,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb29d6b6b/c45a57bddf3e4bb5a08d551457d6e073/FLAG4a0d72396 [2020-04-17 21:43:42,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bb29d6b6b/c45a57bddf3e4bb5a08d551457d6e073 [2020-04-17 21:43:42,676 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 21:43:42,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 21:43:42,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 21:43:42,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 21:43:42,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 21:43:42,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 09:43:42" (1/1) ... [2020-04-17 21:43:42,702 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b38a40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:42, skipping insertion in model container [2020-04-17 21:43:42,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 09:43:42" (1/1) ... [2020-04-17 21:43:42,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 21:43:42,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 21:43:43,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 21:43:43,300 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 21:43:43,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 21:43:43,460 INFO L208 MainTranslator]: Completed translation [2020-04-17 21:43:43,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43 WrapperNode [2020-04-17 21:43:43,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 21:43:43,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 21:43:43,463 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 21:43:43,463 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 21:43:43,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 21:43:43,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 21:43:43,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 21:43:43,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 21:43:43,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (1/1) ... [2020-04-17 21:43:43,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 21:43:43,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 21:43:43,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 21:43:43,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 21:43:43,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (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 [2020-04-17 21:43:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 21:43:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 21:43:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 21:43:43,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 21:43:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 21:43:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 21:43:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 21:43:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 21:43:43,598 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 21:43:43,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 21:43:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 21:43:43,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 21:43:43,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 21:43:43,601 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 21:43:43,972 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 21:43:43,972 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 21:43:43,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 09:43:43 BoogieIcfgContainer [2020-04-17 21:43:43,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 21:43:43,980 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 21:43:43,981 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 21:43:43,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 21:43:43,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 09:43:42" (1/3) ... [2020-04-17 21:43:43,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e79884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 09:43:43, skipping insertion in model container [2020-04-17 21:43:43,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:43:43" (2/3) ... [2020-04-17 21:43:43,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56e79884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 09:43:43, skipping insertion in model container [2020-04-17 21:43:43,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 09:43:43" (3/3) ... [2020-04-17 21:43:43,992 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_pso.opt.i [2020-04-17 21:43:44,003 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 21:43:44,003 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 21:43:44,010 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 21:43:44,011 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 21:43:44,042 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,043 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,043 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,044 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,044 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,044 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,045 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,045 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,046 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,046 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,046 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,047 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,047 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,047 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,048 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,048 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,053 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,053 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,053 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,054 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,060 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,060 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,061 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,061 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,066 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,066 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,066 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,067 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:43:44,089 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 21:43:44,112 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 21:43:44,112 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 21:43:44,112 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 21:43:44,112 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 21:43:44,112 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 21:43:44,113 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 21:43:44,113 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 21:43:44,113 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 21:43:44,129 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-17 21:43:44,131 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 21:43:44,182 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 21:43:44,182 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 21:43:44,187 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 21:43:44,190 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 21:43:44,210 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 21:43:44,211 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 21:43:44,211 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 21:43:44,214 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 21:43:44,215 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 21:43:46,004 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-17 21:43:46,246 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-04-17 21:43:46,246 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-04-17 21:43:46,252 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-17 21:43:46,292 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 21:43:46,294 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 21:43:46,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 21:43:46,305 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:43:46,307 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:43:46,307 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:43:46,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:43:46,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-04-17 21:43:46,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:43:46,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47725949] [2020-04-17 21:43:46,326 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:43:46,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:43:46,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:43:46,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47725949] [2020-04-17 21:43:46,528 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:43:46,528 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 21:43:46,529 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981423512] [2020-04-17 21:43:46,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 21:43:46,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:43:46,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 21:43:46,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:43:46,554 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 21:43:46,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:43:46,617 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-04-17 21:43:46,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 21:43:46,619 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 21:43:46,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:43:46,658 INFO L225 Difference]: With dead ends: 282 [2020-04-17 21:43:46,658 INFO L226 Difference]: Without dead ends: 218 [2020-04-17 21:43:46,660 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:43:46,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-04-17 21:43:46,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-04-17 21:43:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-04-17 21:43:46,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-04-17 21:43:46,792 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-04-17 21:43:46,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:43:46,794 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-04-17 21:43:46,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 21:43:46,794 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-04-17 21:43:46,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 21:43:46,797 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:43:46,797 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:43:46,797 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:43:46,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:43:46,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-04-17 21:43:46,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:43:46,799 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244706536] [2020-04-17 21:43:46,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:43:46,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:43:46,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:43:46,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244706536] [2020-04-17 21:43:46,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:43:46,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 21:43:46,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204004644] [2020-04-17 21:43:46,956 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 21:43:46,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:43:46,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 21:43:46,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 21:43:46,957 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-04-17 21:43:47,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:43:47,004 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-04-17 21:43:47,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 21:43:47,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 21:43:47,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:43:47,006 INFO L225 Difference]: With dead ends: 242 [2020-04-17 21:43:47,007 INFO L226 Difference]: Without dead ends: 146 [2020-04-17 21:43:47,008 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 21:43:47,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-04-17 21:43:47,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-04-17 21:43:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-04-17 21:43:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-04-17 21:43:47,024 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-04-17 21:43:47,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:43:47,025 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-04-17 21:43:47,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 21:43:47,025 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-04-17 21:43:47,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 21:43:47,026 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:43:47,026 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:43:47,027 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:43:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:43:47,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-04-17 21:43:47,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:43:47,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939355972] [2020-04-17 21:43:47,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:43:47,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:43:47,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:43:47,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939355972] [2020-04-17 21:43:47,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:43:47,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 21:43:47,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074769889] [2020-04-17 21:43:47,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 21:43:47,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:43:47,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 21:43:47,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 21:43:47,083 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 4 states. [2020-04-17 21:43:47,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:43:47,106 INFO L93 Difference]: Finished difference Result 182 states and 430 transitions. [2020-04-17 21:43:47,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 21:43:47,106 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 21:43:47,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:43:47,108 INFO L225 Difference]: With dead ends: 182 [2020-04-17 21:43:47,108 INFO L226 Difference]: Without dead ends: 86 [2020-04-17 21:43:47,108 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 21:43:47,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-04-17 21:43:47,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-04-17 21:43:47,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-04-17 21:43:47,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 186 transitions. [2020-04-17 21:43:47,114 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 186 transitions. Word has length 11 [2020-04-17 21:43:47,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:43:47,114 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 186 transitions. [2020-04-17 21:43:47,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 21:43:47,115 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 186 transitions. [2020-04-17 21:43:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 21:43:47,116 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:43:47,116 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:43:47,116 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:43:47,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:43:47,117 INFO L82 PathProgramCache]: Analyzing trace with hash -118658274, now seen corresponding path program 1 times [2020-04-17 21:43:47,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:43:47,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514135052] [2020-04-17 21:43:47,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:43:47,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:43:47,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:43:47,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514135052] [2020-04-17 21:43:47,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:43:47,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 21:43:47,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836457191] [2020-04-17 21:43:47,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 21:43:47,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:43:47,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 21:43:47,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:43:47,164 INFO L87 Difference]: Start difference. First operand 86 states and 186 transitions. Second operand 3 states. [2020-04-17 21:43:47,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:43:47,178 INFO L93 Difference]: Finished difference Result 82 states and 174 transitions. [2020-04-17 21:43:47,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 21:43:47,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-04-17 21:43:47,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:43:47,180 INFO L225 Difference]: With dead ends: 82 [2020-04-17 21:43:47,180 INFO L226 Difference]: Without dead ends: 82 [2020-04-17 21:43:47,181 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:43:47,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-04-17 21:43:47,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-04-17 21:43:47,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-04-17 21:43:47,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 174 transitions. [2020-04-17 21:43:47,192 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 174 transitions. Word has length 13 [2020-04-17 21:43:47,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:43:47,192 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 174 transitions. [2020-04-17 21:43:47,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 21:43:47,192 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 174 transitions. [2020-04-17 21:43:47,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 21:43:47,193 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:43:47,194 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:43:47,194 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:43:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:43:47,196 INFO L82 PathProgramCache]: Analyzing trace with hash 616515302, now seen corresponding path program 1 times [2020-04-17 21:43:47,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:43:47,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826696423] [2020-04-17 21:43:47,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:43:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:43:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:43:47,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826696423] [2020-04-17 21:43:47,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:43:47,291 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 21:43:47,291 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733061018] [2020-04-17 21:43:47,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 21:43:47,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:43:47,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 21:43:47,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 21:43:47,292 INFO L87 Difference]: Start difference. First operand 82 states and 174 transitions. Second operand 4 states. [2020-04-17 21:43:47,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:43:47,314 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-04-17 21:43:47,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 21:43:47,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-04-17 21:43:47,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:43:47,315 INFO L225 Difference]: With dead ends: 74 [2020-04-17 21:43:47,315 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 21:43:47,315 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 21:43:47,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 21:43:47,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 21:43:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 21:43:47,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 21:43:47,316 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-04-17 21:43:47,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:43:47,317 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 21:43:47,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 21:43:47,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 21:43:47,317 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 21:43:47,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 09:43:47 BasicIcfg [2020-04-17 21:43:47,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 21:43:47,323 INFO L168 Benchmark]: Toolchain (without parser) took 4645.64 ms. Allocated memory was 146.3 MB in the beginning and 246.9 MB in the end (delta: 100.7 MB). Free memory was 102.8 MB in the beginning and 206.5 MB in the end (delta: -103.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 21:43:47,324 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-17 21:43:47,325 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.52 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.8 MB in the beginning and 159.2 MB in the end (delta: -58.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-04-17 21:43:47,326 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.04 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 21:43:47,327 INFO L168 Benchmark]: Boogie Preprocessor took 25.73 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-17 21:43:47,328 INFO L168 Benchmark]: RCFGBuilder took 441.70 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 133.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-04-17 21:43:47,329 INFO L168 Benchmark]: TraceAbstraction took 3341.26 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 132.9 MB in the beginning and 206.5 MB in the end (delta: -73.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 21:43:47,333 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 146.3 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.52 ms. Allocated memory was 146.3 MB in the beginning and 202.4 MB in the end (delta: 56.1 MB). Free memory was 100.8 MB in the beginning and 159.2 MB in the end (delta: -58.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.04 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.73 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 441.70 ms. Allocated memory is still 202.4 MB. Free memory was 155.9 MB in the beginning and 133.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3341.26 ms. Allocated memory was 202.4 MB in the beginning and 246.9 MB in the end (delta: 44.6 MB). Free memory was 132.9 MB in the beginning and 206.5 MB in the end (delta: -73.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.1s, HoareTripleCheckerStatistics: 83 SDtfs, 73 SDslu, 67 SDs, 0 SdLazy, 27 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 50 ConstructedInterpolants, 0 QuantifiedInterpolants, 1362 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...