/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:53:01,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:53:01,478 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:53:01,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:53:01,496 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:53:01,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:53:01,501 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:53:01,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:53:01,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:53:01,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:53:01,518 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:53:01,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:53:01,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:53:01,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:53:01,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:53:01,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:53:01,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:53:01,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:53:01,533 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:53:01,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:53:01,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:53:01,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:53:01,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:53:01,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:53:01,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 07:53:01,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:53:01,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:53:01,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:53:01,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:53:01,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:53:01,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:53:01,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:53:01,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:53:01,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:53:01,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:53:01,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:53:01,565 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-VariableLbe.epf [2019-12-27 07:53:01,585 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:53:01,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:53:01,587 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:53:01,587 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:53:01,588 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:53:01,588 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:53:01,588 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:53:01,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:53:01,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:53:01,589 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:53:01,590 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:53:01,590 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:53:01,590 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:53:01,591 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:53:01,591 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:53:01,591 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:53:01,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:53:01,592 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:53:01,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:53:01,592 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:53:01,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:53:01,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:53:01,592 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:53:01,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:53:01,593 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:53:01,593 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:53:01,593 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:53:01,593 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:53:01,594 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:53:01,594 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:53:01,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:53:01,888 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:53:01,891 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:53:01,893 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:53:01,893 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:53:01,894 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-27 07:53:01,965 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce12aa42/efcfa4fe90b243cfb5dae622e56d2101/FLAGb8d22fac4 [2019-12-27 07:53:02,529 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:53:02,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe021_tso.oepc.i [2019-12-27 07:53:02,547 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce12aa42/efcfa4fe90b243cfb5dae622e56d2101/FLAGb8d22fac4 [2019-12-27 07:53:02,826 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dce12aa42/efcfa4fe90b243cfb5dae622e56d2101 [2019-12-27 07:53:02,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:53:02,836 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:53:02,837 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:53:02,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:53:02,841 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:53:02,842 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:53:02" (1/1) ... [2019-12-27 07:53:02,845 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0ac173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:02, skipping insertion in model container [2019-12-27 07:53:02,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:53:02" (1/1) ... [2019-12-27 07:53:02,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:53:02,908 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:53:03,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:53:03,427 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:53:03,483 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:53:03,577 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:53:03,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03 WrapperNode [2019-12-27 07:53:03,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:53:03,579 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:53:03,579 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:53:03,579 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:53:03,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:53:03,625 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:53:03,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:53:03,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:53:03,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,638 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,638 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,644 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,647 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... [2019-12-27 07:53:03,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:53:03,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:53:03,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:53:03,653 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:53:03,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:53:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:53:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:53:03,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:53:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:53:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:53:03,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:53:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:53:03,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:53:03,723 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:53:03,724 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:53:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:53:03,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:53:03,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:53:03,726 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 07:53:04,074 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:53:04,075 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:53:04,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:53:04 BoogieIcfgContainer [2019-12-27 07:53:04,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:53:04,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:53:04,077 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:53:04,080 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:53:04,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:53:02" (1/3) ... [2019-12-27 07:53:04,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193a4445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:53:04, skipping insertion in model container [2019-12-27 07:53:04,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:53:03" (2/3) ... [2019-12-27 07:53:04,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@193a4445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:53:04, skipping insertion in model container [2019-12-27 07:53:04,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:53:04" (3/3) ... [2019-12-27 07:53:04,084 INFO L109 eAbstractionObserver]: Analyzing ICFG safe021_tso.oepc.i [2019-12-27 07:53:04,094 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:53:04,094 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:53:04,101 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:53:04,102 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:53:04,128 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,129 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,129 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,131 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,131 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,132 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,132 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,132 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,133 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,133 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,133 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,134 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,137 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,137 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,138 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,138 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,138 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,139 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,144 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,144 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,144 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,145 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,152 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,152 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,152 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,153 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,155 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,155 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,156 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,156 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:53:04,173 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:53:04,193 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:53:04,194 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:53:04,194 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:53:04,194 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:53:04,195 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:53:04,195 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:53:04,195 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:53:04,195 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:53:04,209 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 07:53:04,211 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:53:04,255 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:53:04,255 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:53:04,261 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 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:53:04,264 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:53:04,288 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:53:04,288 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:53:04,290 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 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:53:04,294 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:53:04,297 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:53:05,679 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-27 07:53:05,679 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 07:53:05,682 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 07:53:05,690 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 07:53:05,692 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 07:53:05,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:53:05,698 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:05,699 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:05,699 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:05,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:05,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-27 07:53:05,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:05,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556887696] [2019-12-27 07:53:05,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:05,941 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 07:53:05,941 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556887696] [2019-12-27 07:53:05,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:05,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:53:05,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153851718] [2019-12-27 07:53:05,952 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:53:05,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:05,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:53:05,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:53:05,970 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 07:53:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:06,012 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 07:53:06,013 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:53:06,015 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:53:06,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:06,046 INFO L225 Difference]: With dead ends: 52 [2019-12-27 07:53:06,047 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 07:53:06,048 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 07:53:06,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 07:53:06,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 07:53:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 07:53:06,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 07:53:06,097 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 07:53:06,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:06,099 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 07:53:06,099 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:53:06,099 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 07:53:06,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:53:06,101 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:06,102 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:06,102 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:06,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:06,102 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-27 07:53:06,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:06,103 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999337037] [2019-12-27 07:53:06,103 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:06,185 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 07:53:06,186 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999337037] [2019-12-27 07:53:06,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:06,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:53:06,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873688775] [2019-12-27 07:53:06,189 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:53:06,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:06,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:53:06,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:53:06,190 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 07:53:06,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:06,202 INFO L93 Difference]: Finished difference Result 42 states and 71 transitions. [2019-12-27 07:53:06,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:53:06,203 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:53:06,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:06,204 INFO L225 Difference]: With dead ends: 42 [2019-12-27 07:53:06,204 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 07:53:06,204 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 07:53:06,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 07:53:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 34. [2019-12-27 07:53:06,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 07:53:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 58 transitions. [2019-12-27 07:53:06,211 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 58 transitions. Word has length 9 [2019-12-27 07:53:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:06,211 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 58 transitions. [2019-12-27 07:53:06,211 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:53:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2019-12-27 07:53:06,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:53:06,212 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:06,212 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:06,212 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:06,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:06,212 INFO L82 PathProgramCache]: Analyzing trace with hash -939448808, now seen corresponding path program 1 times [2019-12-27 07:53:06,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:06,213 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840949854] [2019-12-27 07:53:06,213 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:06,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:06,272 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 07:53:06,273 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840949854] [2019-12-27 07:53:06,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:06,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:53:06,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663178633] [2019-12-27 07:53:06,274 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:53:06,275 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:06,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:53:06,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:53:06,275 INFO L87 Difference]: Start difference. First operand 34 states and 58 transitions. Second operand 3 states. [2019-12-27 07:53:06,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:06,282 INFO L93 Difference]: Finished difference Result 32 states and 53 transitions. [2019-12-27 07:53:06,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:53:06,283 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:53:06,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:06,284 INFO L225 Difference]: With dead ends: 32 [2019-12-27 07:53:06,284 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 07:53:06,285 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 07:53:06,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 07:53:06,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 07:53:06,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 07:53:06,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 53 transitions. [2019-12-27 07:53:06,293 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 53 transitions. Word has length 9 [2019-12-27 07:53:06,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:06,294 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 53 transitions. [2019-12-27 07:53:06,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:53:06,294 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2019-12-27 07:53:06,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:53:06,296 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:06,296 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:06,296 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:06,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:06,297 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-27 07:53:06,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:06,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876583175] [2019-12-27 07:53:06,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:06,382 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 07:53:06,382 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876583175] [2019-12-27 07:53:06,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:06,383 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:53:06,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186508756] [2019-12-27 07:53:06,383 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:53:06,384 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:06,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:53:06,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:53:06,384 INFO L87 Difference]: Start difference. First operand 32 states and 53 transitions. Second operand 4 states. [2019-12-27 07:53:06,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:06,406 INFO L93 Difference]: Finished difference Result 36 states and 55 transitions. [2019-12-27 07:53:06,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:53:06,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 07:53:06,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:06,407 INFO L225 Difference]: With dead ends: 36 [2019-12-27 07:53:06,407 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 07:53:06,408 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 07:53:06,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 07:53:06,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 07:53:06,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 07:53:06,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 41 transitions. [2019-12-27 07:53:06,412 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 41 transitions. Word has length 10 [2019-12-27 07:53:06,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:06,412 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 41 transitions. [2019-12-27 07:53:06,412 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:53:06,412 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2019-12-27 07:53:06,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:53:06,413 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:06,413 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:06,413 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:06,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:06,414 INFO L82 PathProgramCache]: Analyzing trace with hash 941857909, now seen corresponding path program 2 times [2019-12-27 07:53:06,414 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:06,414 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336141463] [2019-12-27 07:53:06,414 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:06,558 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 07:53:06,559 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336141463] [2019-12-27 07:53:06,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:06,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:53:06,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280943947] [2019-12-27 07:53:06,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 07:53:06,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:06,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 07:53:06,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 07:53:06,561 INFO L87 Difference]: Start difference. First operand 28 states and 41 transitions. Second operand 5 states. [2019-12-27 07:53:06,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:06,610 INFO L93 Difference]: Finished difference Result 31 states and 42 transitions. [2019-12-27 07:53:06,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 07:53:06,610 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 07:53:06,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:06,611 INFO L225 Difference]: With dead ends: 31 [2019-12-27 07:53:06,611 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 07:53:06,611 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 07:53:06,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 07:53:06,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 07:53:06,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 07:53:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 07:53:06,615 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 10 [2019-12-27 07:53:06,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:06,615 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 07:53:06,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 07:53:06,615 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 07:53:06,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:53:06,616 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:06,616 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:06,616 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:06,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:06,617 INFO L82 PathProgramCache]: Analyzing trace with hash 943327309, now seen corresponding path program 3 times [2019-12-27 07:53:06,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:06,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532247981] [2019-12-27 07:53:06,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:06,706 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 07:53:06,706 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532247981] [2019-12-27 07:53:06,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:06,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 07:53:06,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559292870] [2019-12-27 07:53:06,707 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 07:53:06,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:06,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 07:53:06,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 07:53:06,712 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 6 states. [2019-12-27 07:53:06,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:06,780 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-12-27 07:53:06,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 07:53:06,780 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 07:53:06,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:06,781 INFO L225 Difference]: With dead ends: 25 [2019-12-27 07:53:06,781 INFO L226 Difference]: Without dead ends: 18 [2019-12-27 07:53:06,781 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 07:53:06,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-12-27 07:53:06,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-12-27 07:53:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-27 07:53:06,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2019-12-27 07:53:06,784 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 10 [2019-12-27 07:53:06,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:06,784 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2019-12-27 07:53:06,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 07:53:06,785 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2019-12-27 07:53:06,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:53:06,785 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:53:06,785 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:53:06,786 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:53:06,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:53:06,786 INFO L82 PathProgramCache]: Analyzing trace with hash -889376455, now seen corresponding path program 1 times [2019-12-27 07:53:06,786 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:53:06,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999039402] [2019-12-27 07:53:06,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:53:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:53:06,851 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 07:53:06,851 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999039402] [2019-12-27 07:53:06,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:53:06,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 07:53:06,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956542328] [2019-12-27 07:53:06,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:53:06,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:53:06,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:53:06,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:53:06,853 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 4 states. [2019-12-27 07:53:06,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:53:06,867 INFO L93 Difference]: Finished difference Result 17 states and 22 transitions. [2019-12-27 07:53:06,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:53:06,868 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:53:06,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:53:06,868 INFO L225 Difference]: With dead ends: 17 [2019-12-27 07:53:06,868 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:53:06,869 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 07:53:06,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:53:06,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:53:06,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:53:06,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:53:06,870 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:53:06,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:53:06,870 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:53:06,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:53:06,870 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:53:06,871 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:53:06,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:53:06 BasicIcfg [2019-12-27 07:53:06,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:53:06,878 INFO L168 Benchmark]: Toolchain (without parser) took 4041.24 ms. Allocated memory was 147.3 MB in the beginning and 243.3 MB in the end (delta: 95.9 MB). Free memory was 102.9 MB in the beginning and 117.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 81.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:06,879 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 07:53:06,880 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.24 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 102.4 MB in the beginning and 161.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:06,881 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.42 ms. Allocated memory is still 205.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:06,882 INFO L168 Benchmark]: Boogie Preprocessor took 27.21 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:06,883 INFO L168 Benchmark]: RCFGBuilder took 423.85 ms. Allocated memory is still 205.0 MB. Free memory was 158.0 MB in the beginning and 138.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:06,884 INFO L168 Benchmark]: TraceAbstraction took 2797.96 ms. Allocated memory was 205.0 MB in the beginning and 243.3 MB in the end (delta: 38.3 MB). Free memory was 137.4 MB in the beginning and 117.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. [2019-12-27 07:53:06,888 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 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.24 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 102.4 MB in the beginning and 161.9 MB in the end (delta: -59.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.42 ms. Allocated memory is still 205.0 MB. Free memory was 161.9 MB in the beginning and 159.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.21 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 158.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.85 ms. Allocated memory is still 205.0 MB. Free memory was 158.0 MB in the beginning and 138.0 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2797.96 ms. Allocated memory was 205.0 MB in the beginning and 243.3 MB in the end (delta: 38.3 MB). Free memory was 137.4 MB in the beginning and 117.8 MB in the end (delta: 19.6 MB). Peak memory consumption was 57.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 442 CheckedPairsTotal, 45 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: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 78 SDtfs, 52 SDslu, 58 SDs, 0 SdLazy, 49 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 1713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...