/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-15 18:29:23,466 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 18:29:23,468 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 18:29:23,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 18:29:23,491 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 18:29:23,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 18:29:23,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 18:29:23,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 18:29:23,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 18:29:23,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 18:29:23,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 18:29:23,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 18:29:23,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 18:29:23,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 18:29:23,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 18:29:23,505 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 18:29:23,506 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 18:29:23,507 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 18:29:23,508 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 18:29:23,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 18:29:23,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 18:29:23,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 18:29:23,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 18:29:23,517 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 18:29:23,520 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-15 18:29:23,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 18:29:23,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 18:29:23,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 18:29:23,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 18:29:23,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 18:29:23,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 18:29:23,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 18:29:23,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 18:29:23,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 18:29:23,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 18:29:23,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 18:29:23,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 18:29:23,556 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 18:29:23,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 18:29:23,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 18:29:23,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 18:29:23,558 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 18:29:23,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 18:29:23,558 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 18:29:23,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 18:29:23,559 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 18:29:23,559 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 18:29:23,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 18:29:23,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 18:29:23,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 18:29:23,560 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 18:29:23,560 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 18:29:23,560 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 18:29:23,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 18:29:23,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 18:29:23,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 18:29:23,561 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 18:29:23,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 18:29:23,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 18:29:23,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 18:29:23,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 18:29:23,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 18:29:23,562 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 18:29:23,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 18:29:23,562 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 18:29:23,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 18:29:23,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-15 18:29:23,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 18:29:23,853 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 18:29:23,856 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 18:29:23,858 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 18:29:23,858 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 18:29:23,859 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i [2020-10-15 18:29:23,923 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277dabe2c/3baf10c31276488684d12d178840a7f7/FLAGc4b9c7605 [2020-10-15 18:29:24,436 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 18:29:24,437 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe000_tso.opt.i [2020-10-15 18:29:24,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277dabe2c/3baf10c31276488684d12d178840a7f7/FLAGc4b9c7605 [2020-10-15 18:29:24,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/277dabe2c/3baf10c31276488684d12d178840a7f7 [2020-10-15 18:29:24,772 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 18:29:24,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-15 18:29:24,775 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 18:29:24,775 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 18:29:24,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 18:29:24,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:29:24" (1/1) ... [2020-10-15 18:29:24,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41614f28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:24, skipping insertion in model container [2020-10-15 18:29:24,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 06:29:24" (1/1) ... [2020-10-15 18:29:24,790 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 18:29:24,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 18:29:25,354 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:29:25,371 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 18:29:25,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 18:29:25,522 INFO L208 MainTranslator]: Completed translation [2020-10-15 18:29:25,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25 WrapperNode [2020-10-15 18:29:25,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 18:29:25,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-15 18:29:25,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-15 18:29:25,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-15 18:29:25,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-15 18:29:25,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 18:29:25,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 18:29:25,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 18:29:25,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,597 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (1/1) ... [2020-10-15 18:29:25,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 18:29:25,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 18:29:25,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 18:29:25,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 18:29:25,609 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (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 18:29:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-15 18:29:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-15 18:29:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-15 18:29:25,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-15 18:29:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-15 18:29:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-15 18:29:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-15 18:29:25,689 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-15 18:29:25,689 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-15 18:29:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-15 18:29:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-15 18:29:25,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 18:29:25,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 18:29:25,692 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 18:29:26,048 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 18:29:26,049 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-15 18:29:26,050 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:29:26 BoogieIcfgContainer [2020-10-15 18:29:26,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 18:29:26,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 18:29:26,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 18:29:26,054 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 18:29:26,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 06:29:24" (1/3) ... [2020-10-15 18:29:26,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b99ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:29:26, skipping insertion in model container [2020-10-15 18:29:26,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 06:29:25" (2/3) ... [2020-10-15 18:29:26,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9b99ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 06:29:26, skipping insertion in model container [2020-10-15 18:29:26,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 06:29:26" (3/3) ... [2020-10-15 18:29:26,058 INFO L111 eAbstractionObserver]: Analyzing ICFG safe000_tso.opt.i [2020-10-15 18:29:26,068 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-15 18:29:26,068 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-15 18:29:26,075 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 18:29:26,075 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-15 18:29:26,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,102 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,104 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,104 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,105 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,109 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,109 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,110 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,121 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,121 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,122 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,122 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,132 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,133 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,133 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,133 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-15 18:29:26,155 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-15 18:29:26,179 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-15 18:29:26,179 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-15 18:29:26,179 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-15 18:29:26,179 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 18:29:26,179 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 18:29:26,179 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-15 18:29:26,180 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 18:29:26,180 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 18:29:26,193 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-15 18:29:26,196 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:29:26,199 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 70 transitions, 155 flow [2020-10-15 18:29:26,201 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-10-15 18:29:26,244 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-10-15 18:29:26,244 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-15 18:29:26,249 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-10-15 18:29:26,252 INFO L117 LiptonReduction]: Number of co-enabled transitions 1260 [2020-10-15 18:29:27,864 INFO L132 LiptonReduction]: Checked pairs total: 2810 [2020-10-15 18:29:27,865 INFO L134 LiptonReduction]: Total number of compositions: 60 [2020-10-15 18:29:27,872 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-15 18:29:27,903 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-10-15 18:29:27,906 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-10-15 18:29:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-15 18:29:27,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:27,915 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:27,916 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:27,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:27,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-10-15 18:29:27,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:27,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913459077] [2020-10-15 18:29:27,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:28,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:28,170 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 18:29:28,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913459077] [2020-10-15 18:29:28,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:28,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:29:28,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040288493] [2020-10-15 18:29:28,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:29:28,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:28,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:29:28,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:28,190 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-10-15 18:29:28,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:28,263 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-15 18:29:28,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:29:28,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-15 18:29:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:28,291 INFO L225 Difference]: With dead ends: 282 [2020-10-15 18:29:28,291 INFO L226 Difference]: Without dead ends: 218 [2020-10-15 18:29:28,292 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:28,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-10-15 18:29:28,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-10-15 18:29:28,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-15 18:29:28,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-10-15 18:29:28,393 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-10-15 18:29:28,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:28,394 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-10-15 18:29:28,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:29:28,394 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-10-15 18:29:28,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-15 18:29:28,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:28,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:28,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 18:29:28,396 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:28,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:28,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-10-15 18:29:28,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:28,397 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588983842] [2020-10-15 18:29:28,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:28,478 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 18:29:28,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588983842] [2020-10-15 18:29:28,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:28,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:29:28,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343929185] [2020-10-15 18:29:28,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:29:28,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:28,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:29:28,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:29:28,482 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-10-15 18:29:28,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:28,512 INFO L93 Difference]: Finished difference Result 290 states and 762 transitions. [2020-10-15 18:29:28,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:29:28,513 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-15 18:29:28,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:28,515 INFO L225 Difference]: With dead ends: 290 [2020-10-15 18:29:28,515 INFO L226 Difference]: Without dead ends: 164 [2020-10-15 18:29:28,516 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 18:29:28,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2020-10-15 18:29:28,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2020-10-15 18:29:28,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2020-10-15 18:29:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 424 transitions. [2020-10-15 18:29:28,531 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 424 transitions. Word has length 9 [2020-10-15 18:29:28,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:28,531 INFO L481 AbstractCegarLoop]: Abstraction has 164 states and 424 transitions. [2020-10-15 18:29:28,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:29:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 424 transitions. [2020-10-15 18:29:28,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:29:28,533 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:28,533 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:28,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 18:29:28,534 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:28,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:28,534 INFO L82 PathProgramCache]: Analyzing trace with hash 1379691760, now seen corresponding path program 1 times [2020-10-15 18:29:28,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:28,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106665645] [2020-10-15 18:29:28,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:28,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:28,604 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 18:29:28,604 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106665645] [2020-10-15 18:29:28,605 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:28,605 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-15 18:29:28,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668319164] [2020-10-15 18:29:28,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:29:28,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:28,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:29:28,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:29:28,608 INFO L87 Difference]: Start difference. First operand 164 states and 424 transitions. Second operand 4 states. [2020-10-15 18:29:28,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:28,657 INFO L93 Difference]: Finished difference Result 244 states and 582 transitions. [2020-10-15 18:29:28,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 18:29:28,658 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-15 18:29:28,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:28,660 INFO L225 Difference]: With dead ends: 244 [2020-10-15 18:29:28,661 INFO L226 Difference]: Without dead ends: 128 [2020-10-15 18:29:28,661 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-15 18:29:28,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-10-15 18:29:28,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 116. [2020-10-15 18:29:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-10-15 18:29:28,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 268 transitions. [2020-10-15 18:29:28,676 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 268 transitions. Word has length 11 [2020-10-15 18:29:28,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:28,677 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 268 transitions. [2020-10-15 18:29:28,677 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:29:28,677 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 268 transitions. [2020-10-15 18:29:28,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-15 18:29:28,679 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:28,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:28,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 18:29:28,679 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:28,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:28,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1517475135, now seen corresponding path program 1 times [2020-10-15 18:29:28,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:28,682 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005704547] [2020-10-15 18:29:28,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:28,752 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 18:29:28,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005704547] [2020-10-15 18:29:28,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:28,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-15 18:29:28,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487130726] [2020-10-15 18:29:28,753 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-15 18:29:28,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:28,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-15 18:29:28,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:28,754 INFO L87 Difference]: Start difference. First operand 116 states and 268 transitions. Second operand 3 states. [2020-10-15 18:29:28,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:28,759 INFO L93 Difference]: Finished difference Result 110 states and 249 transitions. [2020-10-15 18:29:28,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-15 18:29:28,760 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-15 18:29:28,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:28,761 INFO L225 Difference]: With dead ends: 110 [2020-10-15 18:29:28,762 INFO L226 Difference]: Without dead ends: 110 [2020-10-15 18:29:28,762 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-15 18:29:28,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-10-15 18:29:28,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-10-15 18:29:28,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-15 18:29:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 249 transitions. [2020-10-15 18:29:28,768 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 249 transitions. Word has length 11 [2020-10-15 18:29:28,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:28,769 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 249 transitions. [2020-10-15 18:29:28,769 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-15 18:29:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 249 transitions. [2020-10-15 18:29:28,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-15 18:29:28,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:28,770 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:28,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 18:29:28,770 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:28,771 INFO L82 PathProgramCache]: Analyzing trace with hash -142823170, now seen corresponding path program 1 times [2020-10-15 18:29:28,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:28,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992983530] [2020-10-15 18:29:28,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:28,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:28,813 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 18:29:28,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992983530] [2020-10-15 18:29:28,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:28,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:29:28,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721426693] [2020-10-15 18:29:28,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:29:28,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:28,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:29:28,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:29:28,815 INFO L87 Difference]: Start difference. First operand 110 states and 249 transitions. Second operand 4 states. [2020-10-15 18:29:28,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:28,834 INFO L93 Difference]: Finished difference Result 112 states and 234 transitions. [2020-10-15 18:29:28,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:29:28,835 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-15 18:29:28,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:28,836 INFO L225 Difference]: With dead ends: 112 [2020-10-15 18:29:28,836 INFO L226 Difference]: Without dead ends: 46 [2020-10-15 18:29:28,836 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 18:29:28,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-15 18:29:28,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-10-15 18:29:28,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-10-15 18:29:28,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 84 transitions. [2020-10-15 18:29:28,839 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 84 transitions. Word has length 12 [2020-10-15 18:29:28,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:28,840 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 84 transitions. [2020-10-15 18:29:28,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:29:28,840 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 84 transitions. [2020-10-15 18:29:28,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 18:29:28,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 18:29:28,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 18:29:28,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 18:29:28,841 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 18:29:28,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 18:29:28,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1997055762, now seen corresponding path program 1 times [2020-10-15 18:29:28,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-15 18:29:28,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087005436] [2020-10-15 18:29:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 18:29:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 18:29:28,883 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 18:29:28,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087005436] [2020-10-15 18:29:28,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 18:29:28,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-15 18:29:28,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077206661] [2020-10-15 18:29:28,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-15 18:29:28,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-15 18:29:28,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-15 18:29:28,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-15 18:29:28,885 INFO L87 Difference]: Start difference. First operand 46 states and 84 transitions. Second operand 4 states. [2020-10-15 18:29:28,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 18:29:28,901 INFO L93 Difference]: Finished difference Result 34 states and 60 transitions. [2020-10-15 18:29:28,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-15 18:29:28,901 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-15 18:29:28,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 18:29:28,902 INFO L225 Difference]: With dead ends: 34 [2020-10-15 18:29:28,902 INFO L226 Difference]: Without dead ends: 0 [2020-10-15 18:29:28,902 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 18:29:28,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-15 18:29:28,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-15 18:29:28,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-15 18:29:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-15 18:29:28,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-10-15 18:29:28,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 18:29:28,904 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-15 18:29:28,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-15 18:29:28,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-15 18:29:28,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-15 18:29:28,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 18:29:28,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 06:29:28 BasicIcfg [2020-10-15 18:29:28,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 18:29:28,911 INFO L168 Benchmark]: Toolchain (without parser) took 4136.12 ms. Allocated memory was 248.5 MB in the beginning and 368.6 MB in the end (delta: 120.1 MB). Free memory was 203.2 MB in the beginning and 272.3 MB in the end (delta: -69.1 MB). Peak memory consumption was 51.0 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:28,912 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-15 18:29:28,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.34 ms. Allocated memory was 248.5 MB in the beginning and 306.7 MB in the end (delta: 58.2 MB). Free memory was 203.2 MB in the beginning and 257.4 MB in the end (delta: -54.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:28,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.58 ms. Allocated memory is still 306.7 MB. Free memory was 257.4 MB in the beginning and 254.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:28,915 INFO L168 Benchmark]: Boogie Preprocessor took 31.78 ms. Allocated memory is still 306.7 MB. Free memory was 254.9 MB in the beginning and 252.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:28,916 INFO L168 Benchmark]: RCFGBuilder took 445.97 ms. Allocated memory is still 306.7 MB. Free memory was 252.4 MB in the beginning and 230.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:28,917 INFO L168 Benchmark]: TraceAbstraction took 2856.61 ms. Allocated memory was 306.7 MB in the beginning and 368.6 MB in the end (delta: 61.9 MB). Free memory was 230.5 MB in the beginning and 272.3 MB in the end (delta: -41.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 14.2 GB. [2020-10-15 18:29:28,921 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 748.34 ms. Allocated memory was 248.5 MB in the beginning and 306.7 MB in the end (delta: 58.2 MB). Free memory was 203.2 MB in the beginning and 257.4 MB in the end (delta: -54.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 48.58 ms. Allocated memory is still 306.7 MB. Free memory was 257.4 MB in the beginning and 254.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 31.78 ms. Allocated memory is still 306.7 MB. Free memory was 254.9 MB in the beginning and 252.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 445.97 ms. Allocated memory is still 306.7 MB. Free memory was 252.4 MB in the beginning and 230.5 MB in the end (delta: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 2856.61 ms. Allocated memory was 306.7 MB in the beginning and 368.6 MB in the end (delta: 61.9 MB). Free memory was 230.5 MB in the beginning and 272.3 MB in the end (delta: -41.8 MB). Peak memory consumption was 20.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 850 VarBasedMoverChecksPositive, 43 VarBasedMoverChecksNegative, 8 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 70 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 78 PlacesBefore, 31 PlacesAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 60 TotalNumberOfCompositions, 2810 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 105 SDtfs, 84 SDslu, 96 SDs, 0 SdLazy, 37 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 1594 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...