/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 21:49:13,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 21:49:13,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 21:49:13,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 21:49:13,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 21:49:13,393 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 21:49:13,394 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 21:49:13,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 21:49:13,407 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 21:49:13,410 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 21:49:13,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 21:49:13,413 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 21:49:13,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 21:49:13,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 21:49:13,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 21:49:13,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 21:49:13,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 21:49:13,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 21:49:13,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 21:49:13,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 21:49:13,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 21:49:13,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 21:49:13,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 21:49:13,439 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 21:49:13,441 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 21:49:13,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 21:49:13,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 21:49:13,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 21:49:13,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 21:49:13,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 21:49:13,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 21:49:13,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 21:49:13,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 21:49:13,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 21:49:13,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 21:49:13,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 21:49:13,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 21:49:13,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 21:49:13,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 21:49:13,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 21:49:13,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 21:49:13,453 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-SemanticLbe.epf [2020-04-17 21:49:13,485 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 21:49:13,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 21:49:13,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 21:49:13,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 21:49:13,490 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 21:49:13,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 21:49:13,491 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 21:49:13,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 21:49:13,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 21:49:13,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 21:49:13,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 21:49:13,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 21:49:13,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 21:49:13,493 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 21:49:13,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 21:49:13,494 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 21:49:13,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 21:49:13,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 21:49:13,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 21:49:13,494 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 21:49:13,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 21:49:13,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 21:49:13,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 21:49:13,495 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 21:49:13,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 21:49:13,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 21:49:13,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 21:49:13,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 21:49:13,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 21:49:13,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 21:49:13,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 21:49:13,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 21:49:13,787 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 21:49:13,788 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 21:49:13,788 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-04-17 21:49:13,847 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cd61b4e3/a214f25e50fd480f8ffe63600fb83e00/FLAGac8e346be [2020-04-17 21:49:14,382 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 21:49:14,383 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.oepc.i [2020-04-17 21:49:14,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cd61b4e3/a214f25e50fd480f8ffe63600fb83e00/FLAGac8e346be [2020-04-17 21:49:14,710 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2cd61b4e3/a214f25e50fd480f8ffe63600fb83e00 [2020-04-17 21:49:14,719 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 21:49:14,740 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 21:49:14,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 21:49:14,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 21:49:14,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 21:49:14,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 09:49:14" (1/1) ... [2020-04-17 21:49:14,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60020494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:14, skipping insertion in model container [2020-04-17 21:49:14,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 09:49:14" (1/1) ... [2020-04-17 21:49:14,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 21:49:14,807 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 21:49:15,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 21:49:15,330 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 21:49:15,396 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 21:49:15,486 INFO L208 MainTranslator]: Completed translation [2020-04-17 21:49:15,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15 WrapperNode [2020-04-17 21:49:15,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 21:49:15,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 21:49:15,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 21:49:15,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 21:49:15,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 21:49:15,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 21:49:15,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 21:49:15,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 21:49:15,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,544 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,555 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... [2020-04-17 21:49:15,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 21:49:15,558 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 21:49:15,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 21:49:15,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 21:49:15,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 21:49:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 21:49:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 21:49:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 21:49:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 21:49:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 21:49:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 21:49:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 21:49:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 21:49:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 21:49:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 21:49:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 21:49:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 21:49:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 21:49:15,620 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 21:49:15,975 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 21:49:15,975 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 21:49:15,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 09:49:15 BoogieIcfgContainer [2020-04-17 21:49:15,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 21:49:15,981 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 21:49:15,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 21:49:15,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 21:49:15,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 09:49:14" (1/3) ... [2020-04-17 21:49:15,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6676d146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 09:49:15, skipping insertion in model container [2020-04-17 21:49:15,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 09:49:15" (2/3) ... [2020-04-17 21:49:15,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6676d146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 09:49:15, skipping insertion in model container [2020-04-17 21:49:15,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 09:49:15" (3/3) ... [2020-04-17 21:49:15,989 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.oepc.i [2020-04-17 21:49:15,997 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 21:49:15,998 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 21:49:16,004 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 21:49:16,005 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 21:49:16,035 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,035 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,036 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,036 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,037 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,037 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,038 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,038 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,038 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,039 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,039 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,040 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,040 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,040 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,040 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,041 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,041 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,046 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,046 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,046 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,047 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,057 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,058 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,058 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,058 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,070 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,071 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,071 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,072 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 21:49:16,093 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 21:49:16,116 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 21:49:16,116 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 21:49:16,116 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 21:49:16,116 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 21:49:16,116 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 21:49:16,117 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 21:49:16,117 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 21:49:16,117 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 21:49:16,132 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-04-17 21:49:16,134 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 21:49:16,179 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 21:49:16,179 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 21:49:16,185 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 21:49:16,187 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-04-17 21:49:16,211 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-04-17 21:49:16,212 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 21:49:16,213 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-04-17 21:49:16,215 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-04-17 21:49:16,216 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 21:49:17,942 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-04-17 21:49:18,140 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-04-17 21:49:18,141 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-04-17 21:49:18,145 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-04-17 21:49:18,175 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-04-17 21:49:18,178 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-04-17 21:49:18,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 21:49:18,188 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:49:18,190 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:49:18,190 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:49:18,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:49:18,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-04-17 21:49:18,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:49:18,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085157754] [2020-04-17 21:49:18,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:49:18,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:49:18,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:49:18,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085157754] [2020-04-17 21:49:18,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:49:18,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 21:49:18,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247804387] [2020-04-17 21:49:18,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 21:49:18,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:49:18,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 21:49:18,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:49:18,455 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-04-17 21:49:18,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:49:18,543 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-04-17 21:49:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 21:49:18,548 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 21:49:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:49:18,584 INFO L225 Difference]: With dead ends: 290 [2020-04-17 21:49:18,585 INFO L226 Difference]: Without dead ends: 226 [2020-04-17 21:49:18,587 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:49:18,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-04-17 21:49:18,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-04-17 21:49:18,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-04-17 21:49:18,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-04-17 21:49:18,684 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-04-17 21:49:18,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:49:18,685 INFO L479 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-04-17 21:49:18,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 21:49:18,685 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-04-17 21:49:18,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 21:49:18,688 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:49:18,688 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:49:18,688 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:49:18,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:49:18,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1035713695, now seen corresponding path program 1 times [2020-04-17 21:49:18,689 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:49:18,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562091201] [2020-04-17 21:49:18,690 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:49:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:49:18,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:49:18,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562091201] [2020-04-17 21:49:18,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:49:18,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 21:49:18,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292918763] [2020-04-17 21:49:18,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 21:49:18,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:49:18,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 21:49:18,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:49:18,797 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand 3 states. [2020-04-17 21:49:18,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:49:18,807 INFO L93 Difference]: Finished difference Result 212 states and 578 transitions. [2020-04-17 21:49:18,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 21:49:18,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-04-17 21:49:18,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:49:18,813 INFO L225 Difference]: With dead ends: 212 [2020-04-17 21:49:18,813 INFO L226 Difference]: Without dead ends: 212 [2020-04-17 21:49:18,815 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:49:18,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-04-17 21:49:18,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2020-04-17 21:49:18,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-04-17 21:49:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 578 transitions. [2020-04-17 21:49:18,840 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 578 transitions. Word has length 9 [2020-04-17 21:49:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:49:18,840 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 578 transitions. [2020-04-17 21:49:18,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 21:49:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 578 transitions. [2020-04-17 21:49:18,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 21:49:18,843 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:49:18,843 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:49:18,843 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:49:18,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:49:18,844 INFO L82 PathProgramCache]: Analyzing trace with hash -2042366299, now seen corresponding path program 1 times [2020-04-17 21:49:18,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:49:18,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397048094] [2020-04-17 21:49:18,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:49:18,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:49:18,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:49:18,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397048094] [2020-04-17 21:49:18,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:49:18,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 21:49:18,913 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452358801] [2020-04-17 21:49:18,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 21:49:18,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:49:18,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 21:49:18,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:49:18,914 INFO L87 Difference]: Start difference. First operand 212 states and 578 transitions. Second operand 3 states. [2020-04-17 21:49:18,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:49:18,920 INFO L93 Difference]: Finished difference Result 203 states and 548 transitions. [2020-04-17 21:49:18,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 21:49:18,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-17 21:49:18,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:49:18,923 INFO L225 Difference]: With dead ends: 203 [2020-04-17 21:49:18,923 INFO L226 Difference]: Without dead ends: 203 [2020-04-17 21:49:18,924 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:49:18,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-04-17 21:49:18,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-04-17 21:49:18,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-04-17 21:49:18,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 548 transitions. [2020-04-17 21:49:18,933 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 548 transitions. Word has length 10 [2020-04-17 21:49:18,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:49:18,934 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 548 transitions. [2020-04-17 21:49:18,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 21:49:18,934 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 548 transitions. [2020-04-17 21:49:18,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 21:49:18,935 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:49:18,936 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:49:18,936 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:49:18,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:49:18,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1106702486, now seen corresponding path program 1 times [2020-04-17 21:49:18,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:49:18,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45881594] [2020-04-17 21:49:18,937 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:49:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:49:18,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:49:18,978 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45881594] [2020-04-17 21:49:18,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:49:18,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 21:49:18,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870258302] [2020-04-17 21:49:18,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 21:49:18,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:49:18,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 21:49:18,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 21:49:18,979 INFO L87 Difference]: Start difference. First operand 203 states and 548 transitions. Second operand 4 states. [2020-04-17 21:49:19,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:49:19,005 INFO L93 Difference]: Finished difference Result 248 states and 641 transitions. [2020-04-17 21:49:19,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 21:49:19,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 21:49:19,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:49:19,010 INFO L225 Difference]: With dead ends: 248 [2020-04-17 21:49:19,010 INFO L226 Difference]: Without dead ends: 128 [2020-04-17 21:49:19,010 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 21:49:19,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-04-17 21:49:19,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-04-17 21:49:19,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-17 21:49:19,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 307 transitions. [2020-04-17 21:49:19,018 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 307 transitions. Word has length 11 [2020-04-17 21:49:19,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:49:19,018 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 307 transitions. [2020-04-17 21:49:19,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 21:49:19,018 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 307 transitions. [2020-04-17 21:49:19,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 21:49:19,022 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:49:19,022 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:49:19,022 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:49:19,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:49:19,022 INFO L82 PathProgramCache]: Analyzing trace with hash 550400496, now seen corresponding path program 1 times [2020-04-17 21:49:19,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:49:19,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525391268] [2020-04-17 21:49:19,023 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:49:19,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:49:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:49:19,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525391268] [2020-04-17 21:49:19,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:49:19,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 21:49:19,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781634244] [2020-04-17 21:49:19,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 21:49:19,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:49:19,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 21:49:19,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 21:49:19,101 INFO L87 Difference]: Start difference. First operand 128 states and 307 transitions. Second operand 4 states. [2020-04-17 21:49:19,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:49:19,142 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-04-17 21:49:19,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 21:49:19,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 21:49:19,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:49:19,147 INFO L225 Difference]: With dead ends: 194 [2020-04-17 21:49:19,147 INFO L226 Difference]: Without dead ends: 140 [2020-04-17 21:49:19,148 INFO L678 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 [2020-04-17 21:49:19,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-04-17 21:49:19,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 128. [2020-04-17 21:49:19,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-04-17 21:49:19,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 297 transitions. [2020-04-17 21:49:19,164 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 297 transitions. Word has length 12 [2020-04-17 21:49:19,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:49:19,164 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 297 transitions. [2020-04-17 21:49:19,164 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 21:49:19,165 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 297 transitions. [2020-04-17 21:49:19,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 21:49:19,169 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:49:19,169 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:49:19,169 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:49:19,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:49:19,170 INFO L82 PathProgramCache]: Analyzing trace with hash -188087018, now seen corresponding path program 2 times [2020-04-17 21:49:19,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:49:19,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074740409] [2020-04-17 21:49:19,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:49:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:49:19,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:49:19,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074740409] [2020-04-17 21:49:19,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:49:19,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 21:49:19,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474085458] [2020-04-17 21:49:19,228 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 21:49:19,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:49:19,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 21:49:19,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 21:49:19,229 INFO L87 Difference]: Start difference. First operand 128 states and 297 transitions. Second operand 4 states. [2020-04-17 21:49:19,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:49:19,251 INFO L93 Difference]: Finished difference Result 146 states and 330 transitions. [2020-04-17 21:49:19,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 21:49:19,251 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 21:49:19,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:49:19,252 INFO L225 Difference]: With dead ends: 146 [2020-04-17 21:49:19,252 INFO L226 Difference]: Without dead ends: 86 [2020-04-17 21:49:19,253 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 21:49:19,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-04-17 21:49:19,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-04-17 21:49:19,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-04-17 21:49:19,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 186 transitions. [2020-04-17 21:49:19,256 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 186 transitions. Word has length 12 [2020-04-17 21:49:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:49:19,257 INFO L479 AbstractCegarLoop]: Abstraction has 86 states and 186 transitions. [2020-04-17 21:49:19,257 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 21:49:19,257 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 186 transitions. [2020-04-17 21:49:19,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 21:49:19,258 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 21:49:19,258 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 21:49:19,258 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 21:49:19,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 21:49:19,259 INFO L82 PathProgramCache]: Analyzing trace with hash -118658274, now seen corresponding path program 1 times [2020-04-17 21:49:19,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 21:49:19,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169303416] [2020-04-17 21:49:19,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 21:49:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 21:49:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 21:49:19,284 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169303416] [2020-04-17 21:49:19,284 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 21:49:19,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 21:49:19,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744900329] [2020-04-17 21:49:19,285 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 21:49:19,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 21:49:19,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 21:49:19,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 21:49:19,286 INFO L87 Difference]: Start difference. First operand 86 states and 186 transitions. Second operand 3 states. [2020-04-17 21:49:19,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 21:49:19,293 INFO L93 Difference]: Finished difference Result 74 states and 154 transitions. [2020-04-17 21:49:19,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 21:49:19,293 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-04-17 21:49:19,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 21:49:19,294 INFO L225 Difference]: With dead ends: 74 [2020-04-17 21:49:19,294 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 21:49:19,294 INFO L678 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 [2020-04-17 21:49:19,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 21:49:19,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 21:49:19,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 21:49:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 21:49:19,295 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-04-17 21:49:19,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 21:49:19,296 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 21:49:19,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 21:49:19,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 21:49:19,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 21:49:19,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 09:49:19 BasicIcfg [2020-04-17 21:49:19,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 21:49:19,302 INFO L168 Benchmark]: Toolchain (without parser) took 4582.05 ms. Allocated memory was 145.8 MB in the beginning and 246.4 MB in the end (delta: 100.7 MB). Free memory was 102.1 MB in the beginning and 183.6 MB in the end (delta: -81.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-04-17 21:49:19,303 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-17 21:49:19,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.91 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.2 MB in the beginning and 158.3 MB in the end (delta: -58.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2020-04-17 21:49:19,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.94 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-04-17 21:49:19,306 INFO L168 Benchmark]: Boogie Preprocessor took 24.63 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 154.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 21:49:19,307 INFO L168 Benchmark]: RCFGBuilder took 421.79 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 132.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-04-17 21:49:19,307 INFO L168 Benchmark]: TraceAbstraction took 3318.91 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 132.0 MB in the beginning and 183.6 MB in the end (delta: -51.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 21:49:19,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.91 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 100.2 MB in the beginning and 158.3 MB in the end (delta: -58.1 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.94 ms. Allocated memory is still 203.4 MB. Free memory was 158.3 MB in the beginning and 156.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.63 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 154.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.79 ms. Allocated memory is still 203.4 MB. Free memory was 154.7 MB in the beginning and 132.0 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3318.91 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 132.0 MB in the beginning and 183.6 MB in the end (delta: -51.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.0s, HoareTripleCheckerStatistics: 127 SDtfs, 82 SDslu, 111 SDs, 0 SdLazy, 44 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1780 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...