/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 13:40:42,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 13:40:42,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 13:40:42,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 13:40:42,451 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 13:40:42,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 13:40:42,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 13:40:42,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 13:40:42,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 13:40:42,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 13:40:42,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 13:40:42,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 13:40:42,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 13:40:42,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 13:40:42,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 13:40:42,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 13:40:42,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 13:40:42,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 13:40:42,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 13:40:42,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 13:40:42,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 13:40:42,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 13:40:42,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 13:40:42,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 13:40:42,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 13:40:42,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 13:40:42,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 13:40:42,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 13:40:42,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 13:40:42,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 13:40:42,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 13:40:42,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 13:40:42,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 13:40:42,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 13:40:42,522 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 13:40:42,522 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 13:40:42,523 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 13:40:42,523 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 13:40:42,524 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 13:40:42,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 13:40:42,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 13:40:42,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 13:40:42,549 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 13:40:42,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 13:40:42,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 13:40:42,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 13:40:42,554 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 13:40:42,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 13:40:42,555 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 13:40:42,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 13:40:42,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 13:40:42,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 13:40:42,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 13:40:42,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 13:40:42,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 13:40:42,557 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 13:40:42,558 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 13:40:42,558 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 13:40:42,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 13:40:42,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 13:40:42,559 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 13:40:42,559 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 13:40:42,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 13:40:42,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:40:42,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 13:40:42,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 13:40:42,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 13:40:42,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 13:40:42,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 13:40:42,560 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 13:40:42,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 13:40:42,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 13:40:42,866 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 13:40:42,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 13:40:42,894 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 13:40:42,896 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 13:40:42,896 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 13:40:42,897 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2019-12-27 13:40:42,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0d83775/c14dbad361ed4753a1eda261fd5b2df8/FLAGfd9436630 [2019-12-27 13:40:43,491 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 13:40:43,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.oepc.i [2019-12-27 13:40:43,519 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0d83775/c14dbad361ed4753a1eda261fd5b2df8/FLAGfd9436630 [2019-12-27 13:40:43,776 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f0d83775/c14dbad361ed4753a1eda261fd5b2df8 [2019-12-27 13:40:43,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 13:40:43,791 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 13:40:43,792 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 13:40:43,792 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 13:40:43,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 13:40:43,796 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:40:43" (1/1) ... [2019-12-27 13:40:43,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65149110 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:43, skipping insertion in model container [2019-12-27 13:40:43,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:40:43" (1/1) ... [2019-12-27 13:40:43,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 13:40:43,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 13:40:44,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:40:44,389 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 13:40:44,457 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:40:44,534 INFO L208 MainTranslator]: Completed translation [2019-12-27 13:40:44,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44 WrapperNode [2019-12-27 13:40:44,535 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 13:40:44,536 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 13:40:44,536 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 13:40:44,536 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 13:40:44,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 13:40:44,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 13:40:44,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 13:40:44,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 13:40:44,591 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,594 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (1/1) ... [2019-12-27 13:40:44,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 13:40:44,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 13:40:44,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 13:40:44,609 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 13:40:44,610 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (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 13:40:44,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 13:40:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 13:40:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 13:40:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 13:40:44,669 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 13:40:44,669 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 13:40:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 13:40:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 13:40:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 13:40:44,670 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 13:40:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 13:40:44,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 13:40:44,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 13:40:44,672 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 13:40:45,059 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 13:40:45,059 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 13:40:45,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:40:45 BoogieIcfgContainer [2019-12-27 13:40:45,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 13:40:45,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 13:40:45,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 13:40:45,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 13:40:45,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 01:40:43" (1/3) ... [2019-12-27 13:40:45,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf8ff39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:40:45, skipping insertion in model container [2019-12-27 13:40:45,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:40:44" (2/3) ... [2019-12-27 13:40:45,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bf8ff39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:40:45, skipping insertion in model container [2019-12-27 13:40:45,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:40:45" (3/3) ... [2019-12-27 13:40:45,074 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.oepc.i [2019-12-27 13:40:45,085 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 13:40:45,086 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 13:40:45,097 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 13:40:45,098 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 13:40:45,128 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,128 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,129 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,129 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,129 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,130 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,130 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,130 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,131 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,131 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,131 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,132 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,132 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,132 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,133 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,133 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,133 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,133 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,138 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,138 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,138 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,139 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,145 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,145 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,145 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,146 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,148 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,149 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,149 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,149 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:40:45,165 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 13:40:45,181 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 13:40:45,182 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 13:40:45,182 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 13:40:45,182 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 13:40:45,182 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 13:40:45,182 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 13:40:45,182 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 13:40:45,183 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 13:40:45,194 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-27 13:40:45,275 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-27 13:40:45,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-27 13:40:45,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-27 13:40:45,294 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:40:45,296 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:40:45,296 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:40:45,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:40:45,303 INFO L82 PathProgramCache]: Analyzing trace with hash -942997324, now seen corresponding path program 1 times [2019-12-27 13:40:45,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:40:45,313 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885460708] [2019-12-27 13:40:45,314 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:40:45,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:40:45,697 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 13:40:45,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885460708] [2019-12-27 13:40:45,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:40:45,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 13:40:45,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360185480] [2019-12-27 13:40:45,705 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 13:40:45,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:40:45,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 13:40:45,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 13:40:45,724 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-27 13:40:45,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:40:45,856 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-27 13:40:45,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 13:40:45,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-27 13:40:45,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:40:45,882 INFO L225 Difference]: With dead ends: 1294 [2019-12-27 13:40:45,882 INFO L226 Difference]: Without dead ends: 600 [2019-12-27 13:40:45,884 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:40:45,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-27 13:40:45,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-27 13:40:46,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-27 13:40:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-27 13:40:46,007 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-27 13:40:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:40:46,007 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-27 13:40:46,007 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 13:40:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-27 13:40:46,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 13:40:46,011 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:40:46,011 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:40:46,012 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:40:46,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:40:46,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1860558362, now seen corresponding path program 1 times [2019-12-27 13:40:46,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:40:46,013 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305111503] [2019-12-27 13:40:46,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:40:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:40:46,182 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 13:40:46,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305111503] [2019-12-27 13:40:46,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:40:46,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 13:40:46,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187127743] [2019-12-27 13:40:46,186 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 13:40:46,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:40:46,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 13:40:46,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:40:46,188 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-27 13:40:46,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:40:46,268 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-27 13:40:46,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:40:46,269 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-27 13:40:46,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:40:46,279 INFO L225 Difference]: With dead ends: 600 [2019-12-27 13:40:46,280 INFO L226 Difference]: Without dead ends: 537 [2019-12-27 13:40:46,283 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:40:46,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-27 13:40:46,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-27 13:40:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-27 13:40:46,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-27 13:40:46,324 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-27 13:40:46,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:40:46,325 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-27 13:40:46,325 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 13:40:46,325 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-27 13:40:46,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 13:40:46,327 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:40:46,327 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:40:46,327 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:40:46,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:40:46,328 INFO L82 PathProgramCache]: Analyzing trace with hash -345314084, now seen corresponding path program 1 times [2019-12-27 13:40:46,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:40:46,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35644383] [2019-12-27 13:40:46,328 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:40:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:40:46,537 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 13:40:46,538 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35644383] [2019-12-27 13:40:46,538 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:40:46,538 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:40:46,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205267768] [2019-12-27 13:40:46,541 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:40:46,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:40:46,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:40:46,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:40:46,542 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-27 13:40:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:40:46,646 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-27 13:40:46,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:40:46,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-27 13:40:46,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:40:46,651 INFO L225 Difference]: With dead ends: 402 [2019-12-27 13:40:46,651 INFO L226 Difference]: Without dead ends: 348 [2019-12-27 13:40:46,651 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 13:40:46,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-27 13:40:46,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-27 13:40:46,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-27 13:40:46,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-27 13:40:46,669 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-27 13:40:46,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:40:46,670 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-27 13:40:46,670 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:40:46,670 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-27 13:40:46,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:40:46,673 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:40:46,673 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:40:46,673 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:40:46,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:40:46,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1550845431, now seen corresponding path program 1 times [2019-12-27 13:40:46,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:40:46,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462601867] [2019-12-27 13:40:46,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:40:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:40:46,867 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 13:40:46,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462601867] [2019-12-27 13:40:46,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:40:46,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:40:46,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992552721] [2019-12-27 13:40:46,869 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:40:46,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:40:46,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:40:46,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:40:46,870 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 8 states. [2019-12-27 13:40:47,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:40:47,110 INFO L93 Difference]: Finished difference Result 465 states and 1232 transitions. [2019-12-27 13:40:47,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-27 13:40:47,110 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2019-12-27 13:40:47,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:40:47,111 INFO L225 Difference]: With dead ends: 465 [2019-12-27 13:40:47,111 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 13:40:47,112 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-27 13:40:47,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 13:40:47,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 13:40:47,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 13:40:47,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 13:40:47,113 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-27 13:40:47,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:40:47,113 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 13:40:47,114 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:40:47,114 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 13:40:47,114 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 13:40:47,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:40:47 BasicIcfg [2019-12-27 13:40:47,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 13:40:47,124 INFO L168 Benchmark]: Toolchain (without parser) took 3332.20 ms. Allocated memory was 136.8 MB in the beginning and 231.2 MB in the end (delta: 94.4 MB). Free memory was 100.2 MB in the beginning and 90.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 104.5 MB. Max. memory is 7.1 GB. [2019-12-27 13:40:47,125 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 13:40:47,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.06 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.0 MB in the beginning and 158.1 MB in the end (delta: -58.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-12-27 13:40:47,127 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 200.8 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 13:40:47,127 INFO L168 Benchmark]: Boogie Preprocessor took 24.98 ms. Allocated memory is still 200.8 MB. Free memory was 156.0 MB in the beginning and 154.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 13:40:47,128 INFO L168 Benchmark]: RCFGBuilder took 451.76 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 134.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 13:40:47,129 INFO L168 Benchmark]: TraceAbstraction took 2056.99 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 133.7 MB in the beginning and 90.0 MB in the end (delta: 43.7 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. [2019-12-27 13:40:47,134 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 136.8 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.06 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 100.0 MB in the beginning and 158.1 MB in the end (delta: -58.2 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 200.8 MB. Free memory was 158.1 MB in the beginning and 156.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.98 ms. Allocated memory is still 200.8 MB. Free memory was 156.0 MB in the beginning and 154.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.76 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 134.4 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2056.99 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 133.7 MB in the beginning and 90.0 MB in the end (delta: 43.7 MB). Peak memory consumption was 74.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 166 SDtfs, 333 SDslu, 379 SDs, 0 SdLazy, 63 SolverSat, 39 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 126 NumberOfCodeBlocks, 126 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 11290 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...