/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:18:56,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:18:56,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:18:56,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:18:56,366 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:18:56,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:18:56,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:18:56,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:18:56,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:18:56,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:18:56,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:18:56,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:18:56,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:18:56,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:18:56,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:18:56,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:18:56,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:18:56,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:18:56,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:18:56,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:18:56,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:18:56,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:18:56,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:18:56,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:18:56,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 22:18:56,393 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 22:18:56,393 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 22:18:56,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 22:18:56,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 22:18:56,396 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 22:18:56,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:18:56,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:18:56,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:18:56,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:18:56,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:18:56,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:18:56,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:18:56,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:18:56,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:18:56,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:18:56,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:18:56,405 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-MCR.epf [2019-12-27 22:18:56,420 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:18:56,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:18:56,422 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:18:56,422 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:18:56,422 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:18:56,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:18:56,423 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:18:56,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:18:56,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:18:56,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:18:56,424 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:18:56,424 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:18:56,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:18:56,424 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:18:56,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:18:56,425 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:18:56,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:18:56,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:18:56,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:18:56,426 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:18:56,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:18:56,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:18:56,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:18:56,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:18:56,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:18:56,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:18:56,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:18:56,427 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:18:56,428 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:18:56,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:18:56,428 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:18:56,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:18:56,724 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:18:56,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:18:56,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:18:56,749 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:18:56,749 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:18:56,750 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2019-12-27 22:18:56,834 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5704e25/23a47db174e34d258e4b927e7b2089a9/FLAGffd84d832 [2019-12-27 22:18:57,315 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:18:57,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_tso.oepc.i [2019-12-27 22:18:57,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5704e25/23a47db174e34d258e4b927e7b2089a9/FLAGffd84d832 [2019-12-27 22:18:57,632 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf5704e25/23a47db174e34d258e4b927e7b2089a9 [2019-12-27 22:18:57,643 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:18:57,645 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:18:57,646 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:18:57,646 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:18:57,650 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:18:57,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:18:57" (1/1) ... [2019-12-27 22:18:57,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6294424c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:57, skipping insertion in model container [2019-12-27 22:18:57,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:18:57" (1/1) ... [2019-12-27 22:18:57,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:18:57,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:18:58,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:18:58,279 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:18:58,360 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:18:58,453 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:18:58,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58 WrapperNode [2019-12-27 22:18:58,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:18:58,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:18:58,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:18:58,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:18:58,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:18:58,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:18:58,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:18:58,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:18:58,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,531 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (1/1) ... [2019-12-27 22:18:58,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:18:58,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:18:58,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:18:58,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:18:58,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (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 22:18:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:18:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:18:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:18:58,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:18:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:18:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:18:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:18:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:18:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:18:58,610 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:18:58,610 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:18:58,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:18:58,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:18:58,612 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 22:18:58,983 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:18:58,984 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:18:58,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:18:58 BoogieIcfgContainer [2019-12-27 22:18:58,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:18:58,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:18:58,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:18:58,990 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:18:58,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:18:57" (1/3) ... [2019-12-27 22:18:58,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2e037e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:18:58, skipping insertion in model container [2019-12-27 22:18:58,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:18:58" (2/3) ... [2019-12-27 22:18:58,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b2e037e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:18:58, skipping insertion in model container [2019-12-27 22:18:58,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:18:58" (3/3) ... [2019-12-27 22:18:58,994 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.oepc.i [2019-12-27 22:18:59,005 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:18:59,005 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:18:59,021 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:18:59,022 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:18:59,053 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,053 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,053 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,054 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,054 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,054 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,055 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,055 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,055 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,056 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,056 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,056 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,057 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,057 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,057 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,057 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,058 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,058 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,062 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,063 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,063 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,063 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,069 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,070 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,071 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,071 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,078 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,079 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,079 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,079 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:18:59,093 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:18:59,109 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:18:59,110 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:18:59,110 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:18:59,110 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:18:59,110 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:18:59,110 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:18:59,111 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:18:59,111 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:18:59,123 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 22:18:59,125 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:18:59,170 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:18:59,171 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:18:59,177 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:18:59,179 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 22:18:59,198 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 22:18:59,198 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:18:59,200 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:18:59,201 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:18:59,202 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:19:00,429 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 22:19:00,636 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-12-27 22:19:00,696 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 22:19:00,696 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 22:19:00,701 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 22:19:00,719 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 22:19:00,722 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 22:19:00,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:19:00,743 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:19:00,744 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:19:00,745 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:19:00,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:19:00,754 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-12-27 22:19:00,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:19:00,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198384696] [2019-12-27 22:19:00,768 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:19:00,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:19:01,053 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 22:19:01,054 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198384696] [2019-12-27 22:19:01,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:19:01,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:19:01,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [339261332] [2019-12-27 22:19:01,057 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:19:01,063 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:19:01,078 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:19:01,079 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:19:01,082 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:19:01,083 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:19:01,083 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:19:01,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:19:01,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:19:01,096 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 22:19:01,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:19:01,125 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 22:19:01,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:19:01,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:19:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:19:01,150 INFO L225 Difference]: With dead ends: 44 [2019-12-27 22:19:01,150 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 22:19:01,158 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 22:19:01,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 22:19:01,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 22:19:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 22:19:01,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 22:19:01,201 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 22:19:01,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:19:01,203 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 22:19:01,203 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:19:01,203 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 22:19:01,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:19:01,204 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:19:01,204 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:19:01,204 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:19:01,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:19:01,205 INFO L82 PathProgramCache]: Analyzing trace with hash -816919897, now seen corresponding path program 1 times [2019-12-27 22:19:01,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:19:01,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805864018] [2019-12-27 22:19:01,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:19:01,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:19:01,306 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 22:19:01,306 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805864018] [2019-12-27 22:19:01,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:19:01,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:19:01,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1456733393] [2019-12-27 22:19:01,308 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:19:01,309 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:19:01,314 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 22:19:01,314 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:19:01,315 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:19:01,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:19:01,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:19:01,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:19:01,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:19:01,318 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 22:19:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:19:01,324 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-27 22:19:01,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:19:01,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 22:19:01,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:19:01,325 INFO L225 Difference]: With dead ends: 33 [2019-12-27 22:19:01,325 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 22:19:01,326 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 22:19:01,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 22:19:01,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 22:19:01,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 22:19:01,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-27 22:19:01,332 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-27 22:19:01,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:19:01,333 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-27 22:19:01,333 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:19:01,333 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-27 22:19:01,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:19:01,334 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:19:01,334 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:19:01,334 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:19:01,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:19:01,335 INFO L82 PathProgramCache]: Analyzing trace with hash 445286946, now seen corresponding path program 1 times [2019-12-27 22:19:01,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:19:01,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181205448] [2019-12-27 22:19:01,336 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:19:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:19:01,393 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 22:19:01,393 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181205448] [2019-12-27 22:19:01,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:19:01,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:19:01,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2025447047] [2019-12-27 22:19:01,394 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:19:01,395 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:19:01,398 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 22:19:01,398 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:19:01,433 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 22:19:01,435 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 22:19:01,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:19:01,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 22:19:01,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:19:01,436 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 5 states. [2019-12-27 22:19:01,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:19:01,492 INFO L93 Difference]: Finished difference Result 44 states and 72 transitions. [2019-12-27 22:19:01,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:19:01,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 22:19:01,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:19:01,495 INFO L225 Difference]: With dead ends: 44 [2019-12-27 22:19:01,495 INFO L226 Difference]: Without dead ends: 38 [2019-12-27 22:19:01,495 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:19:01,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-27 22:19:01,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2019-12-27 22:19:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-12-27 22:19:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 60 transitions. [2019-12-27 22:19:01,507 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 60 transitions. Word has length 10 [2019-12-27 22:19:01,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:19:01,509 INFO L462 AbstractCegarLoop]: Abstraction has 35 states and 60 transitions. [2019-12-27 22:19:01,509 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 22:19:01,509 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2019-12-27 22:19:01,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:19:01,511 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:19:01,511 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:19:01,512 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:19:01,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:19:01,512 INFO L82 PathProgramCache]: Analyzing trace with hash 420225671, now seen corresponding path program 1 times [2019-12-27 22:19:01,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:19:01,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88100569] [2019-12-27 22:19:01,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:19:01,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:19:01,601 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 22:19:01,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88100569] [2019-12-27 22:19:01,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:19:01,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:19:01,603 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [854683401] [2019-12-27 22:19:01,603 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:19:01,604 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:19:01,605 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:19:01,605 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:19:01,606 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:19:01,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:19:01,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:19:01,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:19:01,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:19:01,607 INFO L87 Difference]: Start difference. First operand 35 states and 60 transitions. Second operand 3 states. [2019-12-27 22:19:01,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:19:01,621 INFO L93 Difference]: Finished difference Result 37 states and 59 transitions. [2019-12-27 22:19:01,622 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:19:01,622 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:19:01,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:19:01,624 INFO L225 Difference]: With dead ends: 37 [2019-12-27 22:19:01,624 INFO L226 Difference]: Without dead ends: 23 [2019-12-27 22:19:01,625 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 22:19:01,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-12-27 22:19:01,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 22. [2019-12-27 22:19:01,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 22:19:01,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 31 transitions. [2019-12-27 22:19:01,629 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 31 transitions. Word has length 10 [2019-12-27 22:19:01,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:19:01,630 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 31 transitions. [2019-12-27 22:19:01,630 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:19:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 31 transitions. [2019-12-27 22:19:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:19:01,631 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:19:01,631 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:19:01,631 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:19:01,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:19:01,632 INFO L82 PathProgramCache]: Analyzing trace with hash 471200862, now seen corresponding path program 2 times [2019-12-27 22:19:01,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:19:01,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659992473] [2019-12-27 22:19:01,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:19:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:19:01,679 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 22:19:01,680 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659992473] [2019-12-27 22:19:01,680 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:19:01,680 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:19:01,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1457780619] [2019-12-27 22:19:01,681 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:19:01,682 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:19:01,684 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 22:19:01,685 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:19:01,685 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:19:01,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:19:01,685 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:19:01,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:19:01,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:19:01,686 INFO L87 Difference]: Start difference. First operand 22 states and 31 transitions. Second operand 4 states. [2019-12-27 22:19:01,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:19:01,707 INFO L93 Difference]: Finished difference Result 25 states and 33 transitions. [2019-12-27 22:19:01,707 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:19:01,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 22:19:01,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:19:01,708 INFO L225 Difference]: With dead ends: 25 [2019-12-27 22:19:01,708 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 22:19:01,709 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 22:19:01,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 22:19:01,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 22:19:01,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 22:19:01,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 22:19:01,711 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 22:19:01,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:19:01,712 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 22:19:01,712 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:19:01,712 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 22:19:01,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:19:01,713 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:19:01,713 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:19:01,713 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:19:01,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:19:01,713 INFO L82 PathProgramCache]: Analyzing trace with hash 142093797, now seen corresponding path program 1 times [2019-12-27 22:19:01,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:19:01,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298402718] [2019-12-27 22:19:01,714 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:19:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:19:01,760 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 22:19:01,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298402718] [2019-12-27 22:19:01,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:19:01,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:19:01,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [484954007] [2019-12-27 22:19:01,764 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:19:01,765 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:19:01,768 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:19:01,768 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:19:01,768 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:19:01,768 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:19:01,768 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:19:01,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:19:01,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:19:01,771 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 22:19:01,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:19:01,782 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 22:19:01,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:19:01,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 22:19:01,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:19:01,783 INFO L225 Difference]: With dead ends: 16 [2019-12-27 22:19:01,784 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:19:01,784 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 22:19:01,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:19:01,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:19:01,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:19:01,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:19:01,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:19:01,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:19:01,785 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:19:01,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:19:01,785 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:19:01,785 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:19:01,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:19:01 BasicIcfg [2019-12-27 22:19:01,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:19:01,791 INFO L168 Benchmark]: Toolchain (without parser) took 4147.01 ms. Allocated memory was 143.1 MB in the beginning and 250.6 MB in the end (delta: 107.5 MB). Free memory was 100.0 MB in the beginning and 144.9 MB in the end (delta: -44.9 MB). Peak memory consumption was 62.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:19:01,792 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 22:19:01,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.09 ms. Allocated memory was 143.1 MB in the beginning and 201.9 MB in the end (delta: 58.7 MB). Free memory was 99.6 MB in the beginning and 156.9 MB in the end (delta: -57.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:19:01,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.11 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 22:19:01,795 INFO L168 Benchmark]: Boogie Preprocessor took 31.95 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 153.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 22:19:01,796 INFO L168 Benchmark]: RCFGBuilder took 447.79 ms. Allocated memory is still 201.9 MB. Free memory was 153.4 MB in the beginning and 132.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:19:01,797 INFO L168 Benchmark]: TraceAbstraction took 2802.61 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 132.4 MB in the beginning and 144.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:19:01,804 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 143.1 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 808.09 ms. Allocated memory was 143.1 MB in the beginning and 201.9 MB in the end (delta: 58.7 MB). Free memory was 99.6 MB in the beginning and 156.9 MB in the end (delta: -57.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.11 ms. Allocated memory is still 201.9 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.95 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 153.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.79 ms. Allocated memory is still 201.9 MB. Free memory was 153.4 MB in the beginning and 132.4 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2802.61 ms. Allocated memory was 201.9 MB in the beginning and 250.6 MB in the end (delta: 48.8 MB). Free memory was 132.4 MB in the beginning and 144.9 MB in the end (delta: -12.5 MB). Peak memory consumption was 36.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 10 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 467 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 22 SDslu, 51 SDs, 0 SdLazy, 43 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1198 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...