/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 22:18:55,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 22:18:55,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 22:18:55,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 22:18:55,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 22:18:55,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 22:18:55,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 22:18:55,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 22:18:55,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 22:18:55,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 22:18:55,377 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 22:18:55,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 22:18:55,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 22:18:55,379 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 22:18:55,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 22:18:55,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 22:18:55,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 22:18:55,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 22:18:55,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 22:18:55,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 22:18:55,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 22:18:55,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 22:18:55,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 22:18:55,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 22:18:55,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 22:18:55,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 22:18:55,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 22:18:55,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 22:18:55,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 22:18:55,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 22:18:55,399 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 22:18:55,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 22:18:55,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 22:18:55,400 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 22:18:55,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 22:18:55,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 22:18:55,403 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 [2020-10-15 22:18:55,424 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 22:18:55,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 22:18:55,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 22:18:55,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 22:18:55,426 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 22:18:55,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 22:18:55,426 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 22:18:55,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 22:18:55,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 22:18:55,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 22:18:55,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 22:18:55,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 22:18:55,428 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 22:18:55,428 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 22:18:55,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 22:18:55,428 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 22:18:55,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 22:18:55,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 22:18:55,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 22:18:55,429 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 22:18:55,429 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 22:18:55,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:18:55,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 22:18:55,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 22:18:55,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 22:18:55,430 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 22:18:55,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 22:18:55,430 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 22:18:55,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 22:18:55,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 22:18:55,732 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 22:18:55,739 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 22:18:55,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 22:18:55,742 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 22:18:55,743 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-10-15 22:18:55,800 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31cfee49b/749108e4885941ddbaa293e94ddaeee5/FLAG52753fd99 [2020-10-15 22:18:56,322 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 22:18:56,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2020-10-15 22:18:56,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31cfee49b/749108e4885941ddbaa293e94ddaeee5/FLAG52753fd99 [2020-10-15 22:18:56,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31cfee49b/749108e4885941ddbaa293e94ddaeee5 [2020-10-15 22:18:56,569 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 22:18:56,571 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 22:18:56,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 22:18:56,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 22:18:56,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 22:18:56,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:18:56" (1/1) ... [2020-10-15 22:18:56,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d748461 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:56, skipping insertion in model container [2020-10-15 22:18:56,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:18:56" (1/1) ... [2020-10-15 22:18:56,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 22:18:56,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 22:18:57,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:18:57,152 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 22:18:57,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 22:18:57,283 INFO L208 MainTranslator]: Completed translation [2020-10-15 22:18:57,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57 WrapperNode [2020-10-15 22:18:57,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 22:18:57,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 22:18:57,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 22:18:57,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 22:18:57,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,310 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 22:18:57,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 22:18:57,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 22:18:57,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 22:18:57,343 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,354 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... [2020-10-15 22:18:57,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 22:18:57,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 22:18:57,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 22:18:57,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 22:18:57,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 22:18:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 22:18:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 22:18:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 22:18:57,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 22:18:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 22:18:57,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 22:18:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 22:18:57,425 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 22:18:57,425 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 22:18:57,426 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 22:18:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 22:18:57,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 22:18:57,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 22:18:57,428 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-15 22:18:57,797 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 22:18:57,798 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 22:18:57,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:18:57 BoogieIcfgContainer [2020-10-15 22:18:57,800 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 22:18:57,802 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 22:18:57,802 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 22:18:57,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 22:18:57,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:18:56" (1/3) ... [2020-10-15 22:18:57,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9d300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:18:57, skipping insertion in model container [2020-10-15 22:18:57,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:18:57" (2/3) ... [2020-10-15 22:18:57,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9d300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:18:57, skipping insertion in model container [2020-10-15 22:18:57,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:18:57" (3/3) ... [2020-10-15 22:18:57,809 INFO L111 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2020-10-15 22:18:57,825 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 22:18:57,825 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 22:18:57,833 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 22:18:57,834 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 22:18:57,868 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,869 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,869 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,869 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,870 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,871 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,871 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,872 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,873 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,873 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,874 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,877 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,878 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,878 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,878 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,884 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,884 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,884 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,885 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,887 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,887 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 22:18:57,903 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 22:18:57,925 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 22:18:57,925 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 22:18:57,925 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 22:18:57,925 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 22:18:57,925 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 22:18:57,925 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 22:18:57,926 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 22:18:57,926 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 22:18:57,939 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 22:18:57,942 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-15 22:18:57,944 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 71 transitions, 157 flow [2020-10-15 22:18:57,945 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 79 places, 71 transitions, 157 flow [2020-10-15 22:18:57,987 INFO L129 PetriNetUnfolder]: 2/68 cut-off events. [2020-10-15 22:18:57,987 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 22:18:57,992 INFO L80 FinitePrefix]: Finished finitePrefix Result has 78 conditions, 68 events. 2/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 51 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 22:18:57,995 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 22:18:59,391 INFO L132 LiptonReduction]: Checked pairs total: 2579 [2020-10-15 22:18:59,391 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-15 22:18:59,399 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 23 transitions, 61 flow [2020-10-15 22:18:59,443 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 362 states. [2020-10-15 22:18:59,446 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states. [2020-10-15 22:18:59,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 22:18:59,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:59,475 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:18:59,476 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:59,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:59,486 INFO L82 PathProgramCache]: Analyzing trace with hash -691335731, now seen corresponding path program 1 times [2020-10-15 22:18:59,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:59,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063204544] [2020-10-15 22:18:59,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:59,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:18:59,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:18:59,666 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063204544] [2020-10-15 22:18:59,666 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:18:59,667 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:18:59,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164975318] [2020-10-15 22:18:59,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-15 22:18:59,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:18:59,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-15 22:18:59,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:18:59,694 INFO L87 Difference]: Start difference. First operand 362 states. Second operand 2 states. [2020-10-15 22:18:59,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:18:59,745 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2020-10-15 22:18:59,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-15 22:18:59,747 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-15 22:18:59,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:18:59,765 INFO L225 Difference]: With dead ends: 362 [2020-10-15 22:18:59,765 INFO L226 Difference]: Without dead ends: 298 [2020-10-15 22:18:59,767 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-15 22:18:59,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2020-10-15 22:18:59,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2020-10-15 22:18:59,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-10-15 22:18:59,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 864 transitions. [2020-10-15 22:18:59,843 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 864 transitions. Word has length 8 [2020-10-15 22:18:59,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:18:59,846 INFO L481 AbstractCegarLoop]: Abstraction has 298 states and 864 transitions. [2020-10-15 22:18:59,846 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-15 22:18:59,847 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 864 transitions. [2020-10-15 22:18:59,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 22:18:59,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:18:59,849 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:18:59,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 22:18:59,849 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:18:59,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:18:59,850 INFO L82 PathProgramCache]: Analyzing trace with hash 43425274, now seen corresponding path program 1 times [2020-10-15 22:18:59,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:18:59,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775240539] [2020-10-15 22:18:59,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:18:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:00,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775240539] [2020-10-15 22:19:00,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:00,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 22:19:00,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440188171] [2020-10-15 22:19:00,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 22:19:00,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:00,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 22:19:00,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 22:19:00,063 INFO L87 Difference]: Start difference. First operand 298 states and 864 transitions. Second operand 4 states. [2020-10-15 22:19:00,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:00,097 INFO L93 Difference]: Finished difference Result 330 states and 912 transitions. [2020-10-15 22:19:00,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 22:19:00,098 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 22:19:00,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:00,102 INFO L225 Difference]: With dead ends: 330 [2020-10-15 22:19:00,102 INFO L226 Difference]: Without dead ends: 266 [2020-10-15 22:19:00,103 INFO L677 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 [2020-10-15 22:19:00,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-10-15 22:19:00,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2020-10-15 22:19:00,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-15 22:19:00,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 752 transitions. [2020-10-15 22:19:00,133 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 752 transitions. Word has length 9 [2020-10-15 22:19:00,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:00,133 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 752 transitions. [2020-10-15 22:19:00,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 22:19:00,134 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 752 transitions. [2020-10-15 22:19:00,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-15 22:19:00,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:00,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:00,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 22:19:00,136 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:00,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:00,136 INFO L82 PathProgramCache]: Analyzing trace with hash 1226466257, now seen corresponding path program 1 times [2020-10-15 22:19:00,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:00,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566863948] [2020-10-15 22:19:00,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:00,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:00,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566863948] [2020-10-15 22:19:00,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:00,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:00,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564114663] [2020-10-15 22:19:00,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:00,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:00,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:00,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:00,234 INFO L87 Difference]: Start difference. First operand 266 states and 752 transitions. Second operand 5 states. [2020-10-15 22:19:00,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:00,292 INFO L93 Difference]: Finished difference Result 326 states and 882 transitions. [2020-10-15 22:19:00,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:00,292 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-15 22:19:00,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:00,294 INFO L225 Difference]: With dead ends: 326 [2020-10-15 22:19:00,294 INFO L226 Difference]: Without dead ends: 158 [2020-10-15 22:19:00,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:19:00,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-10-15 22:19:00,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2020-10-15 22:19:00,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-10-15 22:19:00,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 396 transitions. [2020-10-15 22:19:00,306 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 396 transitions. Word has length 10 [2020-10-15 22:19:00,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:00,307 INFO L481 AbstractCegarLoop]: Abstraction has 158 states and 396 transitions. [2020-10-15 22:19:00,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:00,307 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 396 transitions. [2020-10-15 22:19:00,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 22:19:00,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:00,309 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:00,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 22:19:00,309 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:00,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:00,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1670897012, now seen corresponding path program 1 times [2020-10-15 22:19:00,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:00,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255352234] [2020-10-15 22:19:00,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:00,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:00,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255352234] [2020-10-15 22:19:00,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:00,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:00,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912129278] [2020-10-15 22:19:00,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:00,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:00,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:00,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:00,371 INFO L87 Difference]: Start difference. First operand 158 states and 396 transitions. Second operand 5 states. [2020-10-15 22:19:00,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:00,417 INFO L93 Difference]: Finished difference Result 194 states and 470 transitions. [2020-10-15 22:19:00,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:00,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-15 22:19:00,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:00,419 INFO L225 Difference]: With dead ends: 194 [2020-10-15 22:19:00,419 INFO L226 Difference]: Without dead ends: 74 [2020-10-15 22:19:00,419 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:19:00,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-15 22:19:00,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-15 22:19:00,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-15 22:19:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 164 transitions. [2020-10-15 22:19:00,424 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 164 transitions. Word has length 12 [2020-10-15 22:19:00,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:00,425 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 164 transitions. [2020-10-15 22:19:00,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:00,425 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 164 transitions. [2020-10-15 22:19:00,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-15 22:19:00,426 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 22:19:00,426 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 22:19:00,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 22:19:00,426 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 22:19:00,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 22:19:00,427 INFO L82 PathProgramCache]: Analyzing trace with hash -2118870046, now seen corresponding path program 1 times [2020-10-15 22:19:00,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 22:19:00,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25413844] [2020-10-15 22:19:00,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 22:19:00,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 22:19:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 22:19:00,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25413844] [2020-10-15 22:19:00,498 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 22:19:00,498 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 22:19:00,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051909530] [2020-10-15 22:19:00,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 22:19:00,499 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 22:19:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 22:19:00,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 22:19:00,500 INFO L87 Difference]: Start difference. First operand 74 states and 164 transitions. Second operand 5 states. [2020-10-15 22:19:00,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 22:19:00,545 INFO L93 Difference]: Finished difference Result 62 states and 132 transitions. [2020-10-15 22:19:00,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-15 22:19:00,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-15 22:19:00,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 22:19:00,546 INFO L225 Difference]: With dead ends: 62 [2020-10-15 22:19:00,546 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 22:19:00,547 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-15 22:19:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 22:19:00,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 22:19:00,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 22:19:00,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 22:19:00,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-15 22:19:00,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 22:19:00,548 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 22:19:00,548 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 22:19:00,548 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 22:19:00,549 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 22:19:00,549 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 22:19:00,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 10:19:00 BasicIcfg [2020-10-15 22:19:00,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 22:19:00,556 INFO L168 Benchmark]: Toolchain (without parser) took 3983.91 ms. Allocated memory was 254.3 MB in the beginning and 374.3 MB in the end (delta: 120.1 MB). Free memory was 209.2 MB in the beginning and 297.7 MB in the end (delta: -88.5 MB). Peak memory consumption was 31.6 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:00,556 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 254.3 MB. Free memory is still 230.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 22:19:00,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.09 ms. Allocated memory was 254.3 MB in the beginning and 323.5 MB in the end (delta: 69.2 MB). Free memory was 209.2 MB in the beginning and 276.6 MB in the end (delta: -67.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:00,558 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.17 ms. Allocated memory is still 323.5 MB. Free memory was 276.6 MB in the beginning and 274.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:00,559 INFO L168 Benchmark]: Boogie Preprocessor took 27.39 ms. Allocated memory is still 323.5 MB. Free memory was 274.1 MB in the beginning and 271.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:00,560 INFO L168 Benchmark]: RCFGBuilder took 438.28 ms. Allocated memory is still 323.5 MB. Free memory was 271.6 MB in the beginning and 249.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:00,561 INFO L168 Benchmark]: TraceAbstraction took 2751.38 ms. Allocated memory was 323.5 MB in the beginning and 374.3 MB in the end (delta: 50.9 MB). Free memory was 249.8 MB in the beginning and 297.7 MB in the end (delta: -47.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.2 GB. [2020-10-15 22:19:00,565 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 254.3 MB. Free memory is still 230.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 712.09 ms. Allocated memory was 254.3 MB in the beginning and 323.5 MB in the end (delta: 69.2 MB). Free memory was 209.2 MB in the beginning and 276.6 MB in the end (delta: -67.4 MB). Peak memory consumption was 27.1 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 49.17 ms. Allocated memory is still 323.5 MB. Free memory was 276.6 MB in the beginning and 274.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.39 ms. Allocated memory is still 323.5 MB. Free memory was 274.1 MB in the beginning and 271.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 438.28 ms. Allocated memory is still 323.5 MB. Free memory was 271.6 MB in the beginning and 249.8 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2751.38 ms. Allocated memory was 323.5 MB in the beginning and 374.3 MB in the end (delta: 50.9 MB). Free memory was 249.8 MB in the beginning and 297.7 MB in the end (delta: -47.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 879 VarBasedMoverChecksPositive, 39 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 81 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 79 PlacesBefore, 32 PlacesAfterwards, 71 TransitionsBefore, 23 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 5 FixpointIterations, 15 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 2579 MoverChecksTotal - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 70 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.5s, HoareTripleCheckerStatistics: 110 SDtfs, 125 SDslu, 139 SDs, 0 SdLazy, 34 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred 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, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 1600 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...