/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-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:29:44,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:29:44,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:29:44,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:29:44,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:29:44,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:29:44,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:29:44,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:29:44,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:29:44,316 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:29:44,317 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:29:44,318 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:29:44,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:29:44,320 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:29:44,321 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:29:44,322 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:29:44,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:29:44,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:29:44,325 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:29:44,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:29:44,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:29:44,330 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:29:44,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:29:44,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:29:44,336 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 05:29:44,342 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:29:44,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:29:44,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:29:44,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:29:44,350 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:29:44,350 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:29:44,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:29:44,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:29:44,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:29:44,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:29:44,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:29:44,359 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-NoLbe-MCR.epf [2019-12-28 05:29:44,376 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:29:44,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:29:44,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:29:44,378 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:29:44,378 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:29:44,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:29:44,379 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:29:44,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:29:44,379 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:29:44,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:29:44,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:29:44,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:29:44,380 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:29:44,380 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:29:44,380 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:29:44,380 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:29:44,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:29:44,381 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:29:44,381 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:29:44,381 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:29:44,381 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:29:44,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:29:44,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:29:44,382 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:29:44,382 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:29:44,382 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:29:44,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:29:44,383 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:29:44,383 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:29:44,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:29:44,383 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:29:44,384 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:29:44,653 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:29:44,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:29:44,672 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:29:44,673 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:29:44,673 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:29:44,674 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2019-12-28 05:29:44,742 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96804e297/ef82f92625a749f69e4b1abdc577e191/FLAG450d6e22a [2019-12-28 05:29:45,332 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:29:45,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2019-12-28 05:29:45,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96804e297/ef82f92625a749f69e4b1abdc577e191/FLAG450d6e22a [2019-12-28 05:29:45,599 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96804e297/ef82f92625a749f69e4b1abdc577e191 [2019-12-28 05:29:45,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:29:45,610 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:29:45,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:29:45,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:29:45,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:29:45,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:29:45" (1/1) ... [2019-12-28 05:29:45,619 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fae352c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:45, skipping insertion in model container [2019-12-28 05:29:45,619 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:29:45" (1/1) ... [2019-12-28 05:29:45,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:29:45,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:29:46,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:29:46,225 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:29:46,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:29:46,390 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:29:46,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46 WrapperNode [2019-12-28 05:29:46,391 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:29:46,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:29:46,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:29:46,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:29:46,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:29:46,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:29:46,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:29:46,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:29:46,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (1/1) ... [2019-12-28 05:29:46,474 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:29:46,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:29:46,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:29:46,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:29:46,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (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 [2019-12-28 05:29:46,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:29:46,537 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:29:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:29:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:29:46,538 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:29:46,539 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:29:46,539 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:29:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:29:46,540 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:29:46,540 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:29:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:29:46,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:29:46,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:29:46,543 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:29:46,894 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:29:46,895 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:29:46,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:29:46 BoogieIcfgContainer [2019-12-28 05:29:46,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:29:46,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:29:46,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:29:46,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:29:46,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:29:45" (1/3) ... [2019-12-28 05:29:46,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632fa088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:29:46, skipping insertion in model container [2019-12-28 05:29:46,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:29:46" (2/3) ... [2019-12-28 05:29:46,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@632fa088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:29:46, skipping insertion in model container [2019-12-28 05:29:46,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:29:46" (3/3) ... [2019-12-28 05:29:46,905 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2019-12-28 05:29:46,914 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:29:46,914 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:29:46,920 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:29:46,921 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:29:46,957 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,957 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,958 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,959 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,959 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,960 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,960 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,960 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,961 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,961 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,962 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,962 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,963 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,963 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,963 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,963 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,964 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,964 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,971 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,972 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,972 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,972 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,981 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,982 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,982 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,983 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,986 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,987 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,987 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:46,987 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:29:47,007 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:29:47,030 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:29:47,030 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:29:47,031 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:29:47,031 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:29:47,032 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:29:47,032 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:29:47,033 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:29:47,033 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:29:47,047 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 05:29:47,131 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 05:29:47,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 05:29:47,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:29:47,149 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:47,150 INFO L411 BasicCegarLoop]: 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] [2019-12-28 05:29:47,151 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:47,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:47,157 INFO L82 PathProgramCache]: Analyzing trace with hash -1045891057, now seen corresponding path program 1 times [2019-12-28 05:29:47,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:47,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139773641] [2019-12-28 05:29:47,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:47,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:47,519 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139773641] [2019-12-28 05:29:47,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:47,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:29:47,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1944041741] [2019-12-28 05:29:47,522 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:47,531 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:47,551 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 05:29:47,552 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:47,555 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:47,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:29:47,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:47,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:29:47,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:29:47,569 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 05:29:47,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:47,698 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 05:29:47,699 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:29:47,700 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 05:29:47,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:47,728 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 05:29:47,728 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 05:29:47,729 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:29:47,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 05:29:47,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 05:29:47,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 05:29:47,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 05:29:47,837 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 05:29:47,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:47,837 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 05:29:47,837 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:29:47,838 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 05:29:47,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 05:29:47,841 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:47,841 INFO L411 BasicCegarLoop]: 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] [2019-12-28 05:29:47,841 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:47,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:47,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1152838682, now seen corresponding path program 1 times [2019-12-28 05:29:47,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:47,843 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698627060] [2019-12-28 05:29:47,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:47,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:47,959 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698627060] [2019-12-28 05:29:47,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:47,960 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:29:47,960 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [569734794] [2019-12-28 05:29:47,960 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:47,964 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:47,968 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 05:29:47,969 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:47,970 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:47,971 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:29:47,973 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:47,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:29:47,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:29:47,974 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 05:29:48,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:48,069 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 05:29:48,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:29:48,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 05:29:48,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:48,078 INFO L225 Difference]: With dead ends: 601 [2019-12-28 05:29:48,078 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 05:29:48,079 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:29:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 05:29:48,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 05:29:48,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 05:29:48,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 05:29:48,119 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 05:29:48,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:48,119 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 05:29:48,120 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:29:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 05:29:48,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 05:29:48,122 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:48,122 INFO L411 BasicCegarLoop]: 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] [2019-12-28 05:29:48,123 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:48,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:48,123 INFO L82 PathProgramCache]: Analyzing trace with hash 1131850048, now seen corresponding path program 1 times [2019-12-28 05:29:48,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:48,124 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404100970] [2019-12-28 05:29:48,124 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:48,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:48,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:48,307 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404100970] [2019-12-28 05:29:48,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:48,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:29:48,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1464991809] [2019-12-28 05:29:48,307 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:48,312 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:48,316 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 05:29:48,317 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:48,317 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:48,317 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:29:48,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:48,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:29:48,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:29:48,318 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 05:29:48,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:48,426 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 05:29:48,427 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:29:48,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 05:29:48,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:48,430 INFO L225 Difference]: With dead ends: 403 [2019-12-28 05:29:48,431 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 05:29:48,431 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:29:48,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 05:29:48,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 05:29:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 05:29:48,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 05:29:48,444 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 05:29:48,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:48,444 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 05:29:48,444 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:29:48,445 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 05:29:48,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:29:48,448 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:48,449 INFO L411 BasicCegarLoop]: 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] [2019-12-28 05:29:48,449 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:48,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:48,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1370796524, now seen corresponding path program 1 times [2019-12-28 05:29:48,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:48,450 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906106415] [2019-12-28 05:29:48,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:48,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:48,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:48,656 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906106415] [2019-12-28 05:29:48,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:48,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:29:48,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1336489327] [2019-12-28 05:29:48,658 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:48,662 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:48,670 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 05:29:48,670 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:48,671 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:48,671 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:29:48,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:48,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:29:48,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:29:48,672 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-28 05:29:48,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:48,845 INFO L93 Difference]: Finished difference Result 574 states and 1521 transitions. [2019-12-28 05:29:48,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:29:48,845 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-28 05:29:48,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:48,848 INFO L225 Difference]: With dead ends: 574 [2019-12-28 05:29:48,848 INFO L226 Difference]: Without dead ends: 289 [2019-12-28 05:29:48,849 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:29:48,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2019-12-28 05:29:48,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 280. [2019-12-28 05:29:48,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-28 05:29:48,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-28 05:29:48,873 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-28 05:29:48,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:48,874 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-28 05:29:48,874 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:29:48,874 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-28 05:29:48,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 05:29:48,875 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:29:48,875 INFO L411 BasicCegarLoop]: 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] [2019-12-28 05:29:48,875 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:29:48,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:29:48,876 INFO L82 PathProgramCache]: Analyzing trace with hash 332629140, now seen corresponding path program 2 times [2019-12-28 05:29:48,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:29:48,876 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516291007] [2019-12-28 05:29:48,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:29:48,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:29:49,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:29:49,016 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516291007] [2019-12-28 05:29:49,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:29:49,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 05:29:49,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [133084341] [2019-12-28 05:29:49,017 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:29:49,020 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:29:49,025 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 35 states and 34 transitions. [2019-12-28 05:29:49,030 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:29:49,031 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:29:49,031 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 05:29:49,031 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:29:49,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 05:29:49,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 05:29:49,039 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 7 states. [2019-12-28 05:29:49,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:29:49,178 INFO L93 Difference]: Finished difference Result 235 states and 585 transitions. [2019-12-28 05:29:49,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 05:29:49,178 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-28 05:29:49,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:29:49,179 INFO L225 Difference]: With dead ends: 235 [2019-12-28 05:29:49,179 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:29:49,180 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 05:29:49,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:29:49,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:29:49,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:29:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:29:49,180 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 05:29:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:29:49,181 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:29:49,181 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 05:29:49,181 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:29:49,181 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:29:49,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:29:49 BasicIcfg [2019-12-28 05:29:49,187 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:29:49,189 INFO L168 Benchmark]: Toolchain (without parser) took 3578.33 ms. Allocated memory was 137.4 MB in the beginning and 251.7 MB in the end (delta: 114.3 MB). Free memory was 100.2 MB in the beginning and 172.8 MB in the end (delta: -72.7 MB). Peak memory consumption was 41.6 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:49,190 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-28 05:29:49,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 779.96 ms. Allocated memory was 137.4 MB in the beginning and 202.9 MB in the end (delta: 65.5 MB). Free memory was 100.0 MB in the beginning and 158.0 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:49,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.54 ms. Allocated memory is still 202.9 MB. Free memory was 158.0 MB in the beginning and 155.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:49,193 INFO L168 Benchmark]: Boogie Preprocessor took 25.61 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:49,194 INFO L168 Benchmark]: RCFGBuilder took 422.28 ms. Allocated memory is still 202.9 MB. Free memory was 154.4 MB in the beginning and 133.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:49,194 INFO L168 Benchmark]: TraceAbstraction took 2288.80 ms. Allocated memory was 202.9 MB in the beginning and 251.7 MB in the end (delta: 48.8 MB). Free memory was 133.3 MB in the beginning and 172.8 MB in the end (delta: -39.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:29:49,199 INFO L335 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 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 779.96 ms. Allocated memory was 137.4 MB in the beginning and 202.9 MB in the end (delta: 65.5 MB). Free memory was 100.0 MB in the beginning and 158.0 MB in the end (delta: -58.0 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.54 ms. Allocated memory is still 202.9 MB. Free memory was 158.0 MB in the beginning and 155.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.61 ms. Allocated memory is still 202.9 MB. Free memory was 155.8 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.28 ms. Allocated memory is still 202.9 MB. Free memory was 154.4 MB in the beginning and 133.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2288.80 ms. Allocated memory was 202.9 MB in the beginning and 251.7 MB in the end (delta: 48.8 MB). Free memory was 133.3 MB in the beginning and 172.8 MB in the end (delta: -39.5 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 246 SDtfs, 324 SDslu, 613 SDs, 0 SdLazy, 92 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 14313 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...