/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:09:01,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:09:01,545 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:09:01,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:09:01,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:09:01,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:09:01,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:09:01,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:09:01,583 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:09:01,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:09:01,585 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:09:01,586 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:09:01,586 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:09:01,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:09:01,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:09:01,589 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:09:01,590 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:09:01,591 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:09:01,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:09:01,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:09:01,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:09:01,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:09:01,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:09:01,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:09:01,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 08:09:01,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 08:09:01,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 08:09:01,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 08:09:01,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 08:09:01,603 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 08:09:01,604 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:09:01,605 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:09:01,606 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:09:01,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:09:01,608 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:09:01,608 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:09:01,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:09:01,611 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:09:01,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:09:01,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:09:01,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:09:01,615 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-VariableLbe.epf [2019-12-27 08:09:01,642 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:09:01,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:09:01,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:09:01,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:09:01,645 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:09:01,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:09:01,645 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:09:01,646 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:09:01,646 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:09:01,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:09:01,646 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:09:01,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:09:01,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:09:01,647 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:09:01,647 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:09:01,647 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:09:01,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:09:01,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:09:01,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:09:01,648 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:09:01,648 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:09:01,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:09:01,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:09:01,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:09:01,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:09:01,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:09:01,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:09:01,651 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 08:09:01,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:09:01,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:09:01,902 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:09:01,918 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:09:01,922 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:09:01,923 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:09:01,923 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:09:01,924 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-27 08:09:01,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89e6d673/58526fd7852945fa8ac0a999ff2e1b40/FLAG98b766ae3 [2019-12-27 08:09:02,514 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:09:02,515 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-27 08:09:02,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89e6d673/58526fd7852945fa8ac0a999ff2e1b40/FLAG98b766ae3 [2019-12-27 08:09:02,813 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e89e6d673/58526fd7852945fa8ac0a999ff2e1b40 [2019-12-27 08:09:02,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:09:02,823 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:09:02,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:09:02,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:09:02,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:09:02,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:09:02" (1/1) ... [2019-12-27 08:09:02,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c4a233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:02, skipping insertion in model container [2019-12-27 08:09:02,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:09:02" (1/1) ... [2019-12-27 08:09:02,838 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:09:02,877 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:09:03,327 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:09:03,337 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:09:03,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:09:03,460 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:09:03,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03 WrapperNode [2019-12-27 08:09:03,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:09:03,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:09:03,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:09:03,462 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:09:03,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:09:03,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:09:03,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:09:03,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:09:03,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,524 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (1/1) ... [2019-12-27 08:09:03,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:09:03,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:09:03,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:09:03,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:09:03,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (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 08:09:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:09:03,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 08:09:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:09:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:09:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 08:09:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 08:09:03,597 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 08:09:03,597 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 08:09:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 08:09:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 08:09:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 08:09:03,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:09:03,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:09:03,600 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 08:09:03,947 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:09:03,947 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 08:09:03,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:09:03 BoogieIcfgContainer [2019-12-27 08:09:03,949 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:09:03,950 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:09:03,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:09:03,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:09:03,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:09:02" (1/3) ... [2019-12-27 08:09:03,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b647d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:09:03, skipping insertion in model container [2019-12-27 08:09:03,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:09:03" (2/3) ... [2019-12-27 08:09:03,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b647d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:09:03, skipping insertion in model container [2019-12-27 08:09:03,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:09:03" (3/3) ... [2019-12-27 08:09:03,957 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2019-12-27 08:09:03,969 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:09:03,970 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:09:03,975 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 08:09:03,976 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:09:04,002 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,002 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,002 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,003 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,003 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,003 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,004 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,004 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,004 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,005 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,005 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,005 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,006 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,006 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,006 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,007 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,007 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,011 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,011 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,011 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,012 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,017 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,017 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,018 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,018 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,026 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,027 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,027 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,027 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:09:04,040 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 08:09:04,054 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:09:04,054 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:09:04,055 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:09:04,055 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:09:04,055 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:09:04,055 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:09:04,055 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:09:04,055 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:09:04,072 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 08:09:04,074 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 08:09:04,117 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 08:09:04,117 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:09:04,124 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 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 08:09:04,127 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 08:09:04,149 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 08:09:04,150 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 08:09:04,152 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 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 08:09:04,155 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 08:09:04,159 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 08:09:05,284 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 08:09:05,445 INFO L206 etLargeBlockEncoding]: Checked pairs total: 469 [2019-12-27 08:09:05,445 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 08:09:05,449 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 08:09:05,460 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 08:09:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 08:09:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 08:09:05,479 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:05,480 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:05,481 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:05,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:05,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1445202822, now seen corresponding path program 1 times [2019-12-27 08:09:05,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:05,497 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110291449] [2019-12-27 08:09:05,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:05,730 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 08:09:05,731 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110291449] [2019-12-27 08:09:05,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:05,732 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 08:09:05,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160780238] [2019-12-27 08:09:05,738 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:09:05,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:05,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:09:05,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:05,762 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 08:09:05,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:05,803 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 08:09:05,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:09:05,806 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 08:09:05,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:05,819 INFO L225 Difference]: With dead ends: 52 [2019-12-27 08:09:05,819 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 08:09:05,820 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 08:09:05,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 08:09:05,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 08:09:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 08:09:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 08:09:05,868 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 08:09:05,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:05,869 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 08:09:05,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:09:05,869 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 08:09:05,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 08:09:05,870 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:05,870 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:05,871 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:05,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:05,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1859739782, now seen corresponding path program 1 times [2019-12-27 08:09:05,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:05,871 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610908154] [2019-12-27 08:09:05,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:05,936 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 08:09:05,937 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610908154] [2019-12-27 08:09:05,937 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:05,937 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:09:05,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233700272] [2019-12-27 08:09:05,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:09:05,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:05,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:09:05,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:05,942 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 08:09:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:05,960 INFO L93 Difference]: Finished difference Result 40 states and 69 transitions. [2019-12-27 08:09:05,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:09:05,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 08:09:05,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:05,962 INFO L225 Difference]: With dead ends: 40 [2019-12-27 08:09:05,962 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 08:09:05,963 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 08:09:05,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 08:09:05,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-27 08:09:05,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 08:09:05,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 60 transitions. [2019-12-27 08:09:05,974 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 60 transitions. Word has length 9 [2019-12-27 08:09:05,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:05,974 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 60 transitions. [2019-12-27 08:09:05,975 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:09:05,975 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 60 transitions. [2019-12-27 08:09:05,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 08:09:05,976 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:05,976 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:05,976 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:05,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:05,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1851665460, now seen corresponding path program 1 times [2019-12-27 08:09:05,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:05,977 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130118388] [2019-12-27 08:09:05,977 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:06,062 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 08:09:06,063 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130118388] [2019-12-27 08:09:06,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:06,063 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:09:06,063 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585047307] [2019-12-27 08:09:06,064 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:09:06,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:06,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:09:06,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:09:06,065 INFO L87 Difference]: Start difference. First operand 34 states and 60 transitions. Second operand 3 states. [2019-12-27 08:09:06,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:06,075 INFO L93 Difference]: Finished difference Result 36 states and 57 transitions. [2019-12-27 08:09:06,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:09:06,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 08:09:06,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:06,076 INFO L225 Difference]: With dead ends: 36 [2019-12-27 08:09:06,077 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 08:09:06,077 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 08:09:06,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 08:09:06,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 08:09:06,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 08:09:06,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2019-12-27 08:09:06,082 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 9 [2019-12-27 08:09:06,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:06,082 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2019-12-27 08:09:06,083 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:09:06,083 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2019-12-27 08:09:06,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 08:09:06,083 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:06,084 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:06,085 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:06,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:06,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1567103428, now seen corresponding path program 1 times [2019-12-27 08:09:06,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:06,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238256875] [2019-12-27 08:09:06,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:06,239 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 08:09:06,239 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238256875] [2019-12-27 08:09:06,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:06,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 08:09:06,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662617094] [2019-12-27 08:09:06,241 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 08:09:06,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:06,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 08:09:06,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 08:09:06,242 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand 6 states. [2019-12-27 08:09:06,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:06,329 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2019-12-27 08:09:06,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 08:09:06,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 08:09:06,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:06,331 INFO L225 Difference]: With dead ends: 22 [2019-12-27 08:09:06,331 INFO L226 Difference]: Without dead ends: 14 [2019-12-27 08:09:06,331 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 08:09:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-27 08:09:06,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-27 08:09:06,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-27 08:09:06,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2019-12-27 08:09:06,337 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 10 [2019-12-27 08:09:06,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:06,337 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2019-12-27 08:09:06,338 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 08:09:06,339 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2019-12-27 08:09:06,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 08:09:06,339 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:09:06,339 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:09:06,340 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:09:06,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:09:06,340 INFO L82 PathProgramCache]: Analyzing trace with hash 505163460, now seen corresponding path program 1 times [2019-12-27 08:09:06,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:09:06,340 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228940729] [2019-12-27 08:09:06,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:09:06,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:09:06,374 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 08:09:06,374 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228940729] [2019-12-27 08:09:06,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:09:06,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:09:06,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030582620] [2019-12-27 08:09:06,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 08:09:06,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:09:06,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 08:09:06,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 08:09:06,377 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2019-12-27 08:09:06,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:09:06,390 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 08:09:06,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 08:09:06,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 08:09:06,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:09:06,391 INFO L225 Difference]: With dead ends: 13 [2019-12-27 08:09:06,391 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:09:06,391 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 08:09:06,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:09:06,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:09:06,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:09:06,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:09:06,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 08:09:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:09:06,393 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:09:06,393 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 08:09:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:09:06,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:09:06,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:09:06 BasicIcfg [2019-12-27 08:09:06,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:09:06,399 INFO L168 Benchmark]: Toolchain (without parser) took 3576.29 ms. Allocated memory was 141.0 MB in the beginning and 244.3 MB in the end (delta: 103.3 MB). Free memory was 103.3 MB in the beginning and 157.3 MB in the end (delta: -54.0 MB). Peak memory consumption was 49.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:06,400 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 141.0 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 08:09:06,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.41 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 162.0 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:06,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 159.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:06,402 INFO L168 Benchmark]: Boogie Preprocessor took 23.62 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:06,403 INFO L168 Benchmark]: RCFGBuilder took 417.85 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 137.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:06,404 INFO L168 Benchmark]: TraceAbstraction took 2447.28 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 137.7 MB in the beginning and 157.3 MB in the end (delta: -19.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 08:09:06,408 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 141.0 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 637.41 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 102.9 MB in the beginning and 162.0 MB in the end (delta: -59.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.21 ms. Allocated memory is still 204.5 MB. Free memory was 161.3 MB in the beginning and 159.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.62 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 158.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 417.85 ms. Allocated memory is still 204.5 MB. Free memory was 158.0 MB in the beginning and 137.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2447.28 ms. Allocated memory was 204.5 MB in the beginning and 244.3 MB in the end (delta: 39.8 MB). Free memory was 137.7 MB in the beginning and 157.3 MB in the end (delta: -19.6 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.3s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 240 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 469 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 20 SDslu, 38 SDs, 0 SdLazy, 31 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s 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, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 906 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...