/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:14:20,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:14:20,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:14:20,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:14:20,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:14:20,456 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:14:20,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:14:20,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:14:20,461 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:14:20,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:14:20,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:14:20,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:14:20,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:14:20,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:14:20,467 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:14:20,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:14:20,468 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:14:20,469 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:14:20,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:14:20,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:14:20,474 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:14:20,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:14:20,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:14:20,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:14:20,481 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:14:20,486 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:14:20,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:14:20,489 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:14:20,491 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:14:20,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:14:20,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:14:20,494 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:14:20,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:14:20,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:14:20,497 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:14:20,497 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:14:20,500 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-MCR.epf [2019-12-27 18:14:20,522 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:14:20,522 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:14:20,523 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:14:20,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:14:20,524 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:14:20,524 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:14:20,524 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:14:20,524 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:14:20,524 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:14:20,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:14:20,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:14:20,525 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:14:20,525 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:14:20,525 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:14:20,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:14:20,526 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:14:20,526 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:14:20,526 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:14:20,526 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:14:20,526 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:14:20,527 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:14:20,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:14:20,527 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:14:20,527 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:14:20,527 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:14:20,528 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:14:20,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:14:20,528 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:14:20,528 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:14:20,529 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:14:20,529 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:14:20,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:14:20,812 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:14:20,815 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:14:20,817 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:14:20,817 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:14:20,818 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-27 18:14:20,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d67383c9/dd1c86676a224111a59a00f7390fed21/FLAG16de59552 [2019-12-27 18:14:21,437 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:14:21,438 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-27 18:14:21,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d67383c9/dd1c86676a224111a59a00f7390fed21/FLAG16de59552 [2019-12-27 18:14:21,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d67383c9/dd1c86676a224111a59a00f7390fed21 [2019-12-27 18:14:21,740 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:14:21,742 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:14:21,744 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:14:21,744 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:14:21,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:14:21,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:14:21" (1/1) ... [2019-12-27 18:14:21,752 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ba65df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:21, skipping insertion in model container [2019-12-27 18:14:21,753 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:14:21" (1/1) ... [2019-12-27 18:14:21,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:14:21,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:14:22,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:14:22,361 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:14:22,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:14:22,492 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:14:22,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22 WrapperNode [2019-12-27 18:14:22,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:14:22,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:14:22,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:14:22,494 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:14:22,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,532 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:14:22,552 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:14:22,552 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:14:22,552 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:14:22,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,571 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,573 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (1/1) ... [2019-12-27 18:14:22,579 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:14:22,580 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:14:22,580 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:14:22,580 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:14:22,581 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (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 [2019-12-27 18:14:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:14:22,645 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:14:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:14:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:14:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:14:22,646 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:14:22,646 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:14:22,646 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:14:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:14:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:14:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:14:22,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:14:22,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:14:22,649 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:14:23,026 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:14:23,027 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:14:23,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:14:23 BoogieIcfgContainer [2019-12-27 18:14:23,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:14:23,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:14:23,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:14:23,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:14:23,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:14:21" (1/3) ... [2019-12-27 18:14:23,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7debd0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:14:23, skipping insertion in model container [2019-12-27 18:14:23,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:14:22" (2/3) ... [2019-12-27 18:14:23,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7debd0bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:14:23, skipping insertion in model container [2019-12-27 18:14:23,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:14:23" (3/3) ... [2019-12-27 18:14:23,035 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-12-27 18:14:23,043 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:14:23,044 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:14:23,051 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:14:23,052 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:14:23,083 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,083 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,084 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,084 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,085 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,085 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,086 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,086 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,086 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,086 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,087 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,087 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,087 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,088 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,089 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,089 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,089 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,089 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,096 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,096 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,096 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,097 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,103 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,104 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,104 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,104 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,107 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,107 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,107 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,108 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:14:23,122 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:14:23,137 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:14:23,138 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:14:23,138 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:14:23,138 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:14:23,138 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:14:23,138 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:14:23,138 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:14:23,139 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:14:23,153 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 18:14:23,155 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:14:23,199 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:14:23,200 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:14:23,206 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:14:23,209 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:14:23,227 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:14:23,228 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:14:23,229 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:14:23,231 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:14:23,232 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:14:24,654 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 18:14:24,715 INFO L206 etLargeBlockEncoding]: Checked pairs total: 507 [2019-12-27 18:14:24,715 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 18:14:24,719 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 18:14:24,738 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 18:14:24,741 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 18:14:24,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:14:24,750 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:14:24,751 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:14:24,752 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:14:24,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:14:24,760 INFO L82 PathProgramCache]: Analyzing trace with hash 1331014227, now seen corresponding path program 1 times [2019-12-27 18:14:24,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:14:24,774 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353758848] [2019-12-27 18:14:24,774 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:14:24,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:14:25,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:14:25,127 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353758848] [2019-12-27 18:14:25,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:14:25,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:14:25,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1778959117] [2019-12-27 18:14:25,130 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:14:25,135 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:14:25,147 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:14:25,147 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:14:25,151 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:14:25,152 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:14:25,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:14:25,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:14:25,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:14:25,169 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 18:14:25,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:14:25,190 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 18:14:25,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:14:25,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:14:25,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:14:25,203 INFO L225 Difference]: With dead ends: 50 [2019-12-27 18:14:25,203 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 18:14:25,205 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:14:25,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 18:14:25,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 18:14:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:14:25,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 18:14:25,242 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 18:14:25,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:14:25,243 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 18:14:25,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:14:25,244 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 18:14:25,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:14:25,245 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:14:25,245 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:14:25,245 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:14:25,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:14:25,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1688231858, now seen corresponding path program 1 times [2019-12-27 18:14:25,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:14:25,246 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725793118] [2019-12-27 18:14:25,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:14:25,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:14:25,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:14:25,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725793118] [2019-12-27 18:14:25,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:14:25,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:14:25,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1342504707] [2019-12-27 18:14:25,320 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:14:25,321 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:14:25,324 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:14:25,325 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:14:25,325 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:14:25,326 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:14:25,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:14:25,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:14:25,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:14:25,328 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 18:14:25,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:14:25,366 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 18:14:25,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:14:25,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:14:25,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:14:25,368 INFO L225 Difference]: With dead ends: 36 [2019-12-27 18:14:25,368 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 18:14:25,369 INFO L631 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 [2019-12-27 18:14:25,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 18:14:25,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 18:14:25,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 18:14:25,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 18:14:25,379 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 18:14:25,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:14:25,380 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 18:14:25,382 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:14:25,382 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 18:14:25,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:14:25,383 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:14:25,383 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:14:25,384 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:14:25,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:14:25,385 INFO L82 PathProgramCache]: Analyzing trace with hash -848747306, now seen corresponding path program 1 times [2019-12-27 18:14:25,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:14:25,386 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963255657] [2019-12-27 18:14:25,387 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:14:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:14:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:14:25,488 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963255657] [2019-12-27 18:14:25,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:14:25,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:14:25,488 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [214304330] [2019-12-27 18:14:25,488 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:14:25,489 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:14:25,492 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:14:25,493 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:14:25,494 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:14:25,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:14:25,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:14:25,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:14:25,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:14:25,495 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 18:14:25,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:14:25,504 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 18:14:25,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:14:25,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 18:14:25,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:14:25,505 INFO L225 Difference]: With dead ends: 29 [2019-12-27 18:14:25,505 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 18:14:25,506 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:14:25,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 18:14:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 18:14:25,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 18:14:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 18:14:25,509 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 18:14:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:14:25,509 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 18:14:25,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:14:25,509 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 18:14:25,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:14:25,510 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:14:25,510 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:14:25,510 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:14:25,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:14:25,511 INFO L82 PathProgramCache]: Analyzing trace with hash -541362955, now seen corresponding path program 1 times [2019-12-27 18:14:25,511 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:14:25,511 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525901949] [2019-12-27 18:14:25,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:14:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:14:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:14:25,577 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525901949] [2019-12-27 18:14:25,577 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:14:25,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:14:25,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [539634519] [2019-12-27 18:14:25,578 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:14:25,579 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:14:25,582 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:14:25,582 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:14:25,582 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:14:25,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:14:25,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:14:25,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:14:25,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:14:25,584 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-27 18:14:25,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:14:25,589 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 18:14:25,589 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:14:25,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 18:14:25,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:14:25,589 INFO L225 Difference]: With dead ends: 16 [2019-12-27 18:14:25,590 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:14:25,590 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:14:25,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:14:25,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:14:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:14:25,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:14:25,591 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:14:25,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:14:25,591 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:14:25,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:14:25,591 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:14:25,591 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:14:25,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:14:25 BasicIcfg [2019-12-27 18:14:25,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:14:25,597 INFO L168 Benchmark]: Toolchain (without parser) took 3854.72 ms. Allocated memory was 140.0 MB in the beginning and 245.9 MB in the end (delta: 105.9 MB). Free memory was 100.0 MB in the beginning and 162.2 MB in the end (delta: -62.2 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. [2019-12-27 18:14:25,598 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 140.0 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-27 18:14:25,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.33 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 99.6 MB in the beginning and 159.6 MB in the end (delta: -60.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:14:25,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.52 ms. Allocated memory is still 203.4 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:14:25,600 INFO L168 Benchmark]: Boogie Preprocessor took 27.11 ms. Allocated memory is still 203.4 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:14:25,601 INFO L168 Benchmark]: RCFGBuilder took 448.45 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 135.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 18:14:25,602 INFO L168 Benchmark]: TraceAbstraction took 2565.73 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 135.8 MB in the beginning and 162.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:14:25,607 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 140.0 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.33 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 99.6 MB in the beginning and 159.6 MB in the end (delta: -60.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.52 ms. Allocated memory is still 203.4 MB. Free memory was 159.6 MB in the beginning and 157.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.11 ms. Allocated memory is still 203.4 MB. Free memory was 157.6 MB in the beginning and 156.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 448.45 ms. Allocated memory is still 203.4 MB. Free memory was 156.3 MB in the beginning and 135.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2565.73 ms. Allocated memory was 203.4 MB in the beginning and 245.9 MB in the end (delta: 42.5 MB). Free memory was 135.8 MB in the beginning and 162.2 MB in the end (delta: -26.4 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 249 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 507 CheckedPairsTotal, 44 TotalNumberOfCompositions - 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 19 SDslu, 25 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...