/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 17:55:30,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 17:55:30,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 17:55:30,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 17:55:30,634 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 17:55:30,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 17:55:30,638 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 17:55:30,648 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 17:55:30,651 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 17:55:30,654 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 17:55:30,656 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 17:55:30,658 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 17:55:30,658 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 17:55:30,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 17:55:30,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 17:55:30,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 17:55:30,666 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 17:55:30,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 17:55:30,668 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 17:55:30,673 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 17:55:30,677 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 17:55:30,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 17:55:30,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 17:55:30,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 17:55:30,681 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 17:55:30,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 17:55:30,682 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 17:55:30,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 17:55:30,683 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 17:55:30,684 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 17:55:30,684 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 17:55:30,685 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 17:55:30,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 17:55:30,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 17:55:30,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 17:55:30,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 17:55:30,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 17:55:30,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 17:55:30,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 17:55:30,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 17:55:30,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 17:55:30,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 17:55:30,704 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 17:55:30,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 17:55:30,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 17:55:30,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 17:55:30,706 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 17:55:30,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 17:55:30,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 17:55:30,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 17:55:30,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 17:55:30,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 17:55:30,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 17:55:30,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 17:55:30,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 17:55:30,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 17:55:30,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 17:55:30,708 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 17:55:30,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 17:55:30,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 17:55:30,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 17:55:30,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 17:55:30,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 17:55:30,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 17:55:30,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 17:55:30,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 17:55:30,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 17:55:30,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 17:55:30,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 17:55:30,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 17:55:30,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 17:55:30,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 17:55:31,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 17:55:31,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 17:55:31,029 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 17:55:31,030 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 17:55:31,031 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 17:55:31,033 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2020-04-17 17:55:31,115 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1efeb2ff/a7139ed2ad1a4cbebf7eb9694292977e/FLAGb876f6bc0 [2020-04-17 17:55:31,706 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 17:55:31,707 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2020-04-17 17:55:31,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1efeb2ff/a7139ed2ad1a4cbebf7eb9694292977e/FLAGb876f6bc0 [2020-04-17 17:55:31,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1efeb2ff/a7139ed2ad1a4cbebf7eb9694292977e [2020-04-17 17:55:32,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 17:55:32,026 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 17:55:32,027 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 17:55:32,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 17:55:32,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 17:55:32,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:55:31" (1/1) ... [2020-04-17 17:55:32,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d7ea90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32, skipping insertion in model container [2020-04-17 17:55:32,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 05:55:31" (1/1) ... [2020-04-17 17:55:32,045 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 17:55:32,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 17:55:32,616 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:55:32,629 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 17:55:32,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 17:55:32,770 INFO L208 MainTranslator]: Completed translation [2020-04-17 17:55:32,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32 WrapperNode [2020-04-17 17:55:32,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 17:55:32,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 17:55:32,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 17:55:32,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 17:55:32,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 17:55:32,838 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 17:55:32,838 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 17:55:32,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 17:55:32,848 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,851 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,851 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,858 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,860 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,863 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (1/1) ... [2020-04-17 17:55:32,866 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 17:55:32,867 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 17:55:32,867 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 17:55:32,867 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 17:55:32,868 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (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 17:55:32,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 17:55:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-04-17 17:55:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 17:55:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 17:55:32,937 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-04-17 17:55:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-04-17 17:55:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-04-17 17:55:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-04-17 17:55:32,938 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-04-17 17:55:32,938 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-04-17 17:55:32,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-04-17 17:55:32,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 17:55:32,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 17:55:32,941 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 17:55:33,299 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 17:55:33,299 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-04-17 17:55:33,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:55:33 BoogieIcfgContainer [2020-04-17 17:55:33,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 17:55:33,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 17:55:33,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 17:55:33,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 17:55:33,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 05:55:31" (1/3) ... [2020-04-17 17:55:33,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bc22aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:55:33, skipping insertion in model container [2020-04-17 17:55:33,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 05:55:32" (2/3) ... [2020-04-17 17:55:33,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12bc22aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 05:55:33, skipping insertion in model container [2020-04-17 17:55:33,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 05:55:33" (3/3) ... [2020-04-17 17:55:33,313 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2020-04-17 17:55:33,324 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 17:55:33,324 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 17:55:33,331 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 17:55:33,332 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 17:55:33,356 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,357 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,357 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,357 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,358 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,358 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,358 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,359 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,359 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,359 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,360 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,360 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,360 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,361 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,361 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,361 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,361 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,362 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,366 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,366 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,367 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,367 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,373 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,373 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,374 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,374 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,376 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,377 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,377 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,377 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 17:55:33,392 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 17:55:33,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 17:55:33,410 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 17:55:33,410 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 17:55:33,410 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 17:55:33,410 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 17:55:33,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 17:55:33,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 17:55:33,411 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 17:55:33,426 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-04-17 17:55:33,428 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 17:55:33,474 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 17:55:33,474 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:55:33,480 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-17 17:55:33,483 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-04-17 17:55:33,505 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-04-17 17:55:33,505 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 17:55:33,506 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-04-17 17:55:33,508 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-04-17 17:55:33,509 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 17:55:35,307 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1996 [2020-04-17 17:55:35,308 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-04-17 17:55:35,312 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-04-17 17:55:35,336 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-04-17 17:55:35,338 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-04-17 17:55:35,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 17:55:35,347 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:55:35,348 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:55:35,349 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:55:35,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:55:35,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1153400973, now seen corresponding path program 1 times [2020-04-17 17:55:35,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:55:35,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294508076] [2020-04-17 17:55:35,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:55:35,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:55:35,649 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 17:55:35,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294508076] [2020-04-17 17:55:35,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:55:35,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 17:55:35,653 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066439561] [2020-04-17 17:55:35,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 17:55:35,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:55:35,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 17:55:35,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 17:55:35,680 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-04-17 17:55:35,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:55:35,744 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-04-17 17:55:35,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 17:55:35,747 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 17:55:35,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:55:35,785 INFO L225 Difference]: With dead ends: 214 [2020-04-17 17:55:35,786 INFO L226 Difference]: Without dead ends: 166 [2020-04-17 17:55:35,788 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 17:55:35,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-04-17 17:55:35,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-04-17 17:55:35,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-04-17 17:55:35,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-04-17 17:55:35,886 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-04-17 17:55:35,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:55:35,888 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-04-17 17:55:35,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 17:55:35,889 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-04-17 17:55:35,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 17:55:35,892 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:55:35,893 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:55:35,893 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:55:35,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:55:35,893 INFO L82 PathProgramCache]: Analyzing trace with hash 837018342, now seen corresponding path program 1 times [2020-04-17 17:55:35,894 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:55:35,894 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552182313] [2020-04-17 17:55:35,894 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:55:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:55:36,052 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 17:55:36,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552182313] [2020-04-17 17:55:36,055 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:55:36,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:55:36,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285571629] [2020-04-17 17:55:36,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:55:36,058 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:55:36,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:55:36,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:55:36,059 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-04-17 17:55:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:55:36,092 INFO L93 Difference]: Finished difference Result 184 states and 465 transitions. [2020-04-17 17:55:36,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 17:55:36,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 17:55:36,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:55:36,094 INFO L225 Difference]: With dead ends: 184 [2020-04-17 17:55:36,094 INFO L226 Difference]: Without dead ends: 88 [2020-04-17 17:55:36,095 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 17:55:36,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-04-17 17:55:36,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-04-17 17:55:36,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-04-17 17:55:36,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 207 transitions. [2020-04-17 17:55:36,104 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 207 transitions. Word has length 9 [2020-04-17 17:55:36,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:55:36,104 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 207 transitions. [2020-04-17 17:55:36,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:55:36,105 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 207 transitions. [2020-04-17 17:55:36,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-04-17 17:55:36,106 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:55:36,106 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:55:36,106 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:55:36,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:55:36,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1248093964, now seen corresponding path program 1 times [2020-04-17 17:55:36,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:55:36,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604391606] [2020-04-17 17:55:36,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:55:36,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:55:36,173 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 17:55:36,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604391606] [2020-04-17 17:55:36,175 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:55:36,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:55:36,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432265563] [2020-04-17 17:55:36,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:55:36,176 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:55:36,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:55:36,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:55:36,176 INFO L87 Difference]: Start difference. First operand 88 states and 207 transitions. Second operand 4 states. [2020-04-17 17:55:36,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:55:36,218 INFO L93 Difference]: Finished difference Result 118 states and 268 transitions. [2020-04-17 17:55:36,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 17:55:36,218 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-04-17 17:55:36,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:55:36,219 INFO L225 Difference]: With dead ends: 118 [2020-04-17 17:55:36,220 INFO L226 Difference]: Without dead ends: 64 [2020-04-17 17:55:36,220 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 17:55:36,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-04-17 17:55:36,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-04-17 17:55:36,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-04-17 17:55:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 137 transitions. [2020-04-17 17:55:36,229 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 137 transitions. Word has length 11 [2020-04-17 17:55:36,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:55:36,230 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 137 transitions. [2020-04-17 17:55:36,230 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:55:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2020-04-17 17:55:36,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 17:55:36,231 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:55:36,231 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:55:36,231 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:55:36,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:55:36,232 INFO L82 PathProgramCache]: Analyzing trace with hash 500064419, now seen corresponding path program 1 times [2020-04-17 17:55:36,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:55:36,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898507223] [2020-04-17 17:55:36,233 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:55:36,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:55:36,418 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 17:55:36,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898507223] [2020-04-17 17:55:36,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:55:36,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 17:55:36,422 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429667494] [2020-04-17 17:55:36,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:55:36,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:55:36,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:55:36,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:55:36,423 INFO L87 Difference]: Start difference. First operand 64 states and 137 transitions. Second operand 4 states. [2020-04-17 17:55:36,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:55:36,464 INFO L93 Difference]: Finished difference Result 77 states and 150 transitions. [2020-04-17 17:55:36,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 17:55:36,465 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 17:55:36,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:55:36,466 INFO L225 Difference]: With dead ends: 77 [2020-04-17 17:55:36,466 INFO L226 Difference]: Without dead ends: 56 [2020-04-17 17:55:36,467 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 17:55:36,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-04-17 17:55:36,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-04-17 17:55:36,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-04-17 17:55:36,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 109 transitions. [2020-04-17 17:55:36,473 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 109 transitions. Word has length 12 [2020-04-17 17:55:36,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:55:36,474 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 109 transitions. [2020-04-17 17:55:36,474 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:55:36,474 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 109 transitions. [2020-04-17 17:55:36,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-04-17 17:55:36,476 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:55:36,476 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:55:36,476 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:55:36,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:55:36,477 INFO L82 PathProgramCache]: Analyzing trace with hash -1337478729, now seen corresponding path program 1 times [2020-04-17 17:55:36,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:55:36,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064848333] [2020-04-17 17:55:36,477 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:55:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:55:36,596 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 17:55:36,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064848333] [2020-04-17 17:55:36,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:55:36,597 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:55:36,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115726547] [2020-04-17 17:55:36,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 17:55:36,598 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:55:36,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 17:55:36,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-04-17 17:55:36,599 INFO L87 Difference]: Start difference. First operand 56 states and 109 transitions. Second operand 5 states. [2020-04-17 17:55:36,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:55:36,645 INFO L93 Difference]: Finished difference Result 57 states and 99 transitions. [2020-04-17 17:55:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 17:55:36,646 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-04-17 17:55:36,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:55:36,647 INFO L225 Difference]: With dead ends: 57 [2020-04-17 17:55:36,647 INFO L226 Difference]: Without dead ends: 42 [2020-04-17 17:55:36,647 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 17:55:36,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-04-17 17:55:36,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-04-17 17:55:36,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-04-17 17:55:36,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2020-04-17 17:55:36,651 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 13 [2020-04-17 17:55:36,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:55:36,652 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2020-04-17 17:55:36,652 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 17:55:36,652 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2020-04-17 17:55:36,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-04-17 17:55:36,653 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:55:36,653 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:55:36,653 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:55:36,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:55:36,653 INFO L82 PathProgramCache]: Analyzing trace with hash 1451530590, now seen corresponding path program 1 times [2020-04-17 17:55:36,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:55:36,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096056575] [2020-04-17 17:55:36,654 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:55:36,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:55:36,768 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 17:55:36,769 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096056575] [2020-04-17 17:55:36,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:55:36,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 17:55:36,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20247711] [2020-04-17 17:55:36,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 17:55:36,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:55:36,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 17:55:36,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-04-17 17:55:36,771 INFO L87 Difference]: Start difference. First operand 42 states and 69 transitions. Second operand 6 states. [2020-04-17 17:55:36,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:55:36,819 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-04-17 17:55:36,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-04-17 17:55:36,819 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-04-17 17:55:36,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:55:36,820 INFO L225 Difference]: With dead ends: 39 [2020-04-17 17:55:36,820 INFO L226 Difference]: Without dead ends: 33 [2020-04-17 17:55:36,821 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-04-17 17:55:36,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-04-17 17:55:36,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-04-17 17:55:36,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-04-17 17:55:36,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-04-17 17:55:36,823 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2020-04-17 17:55:36,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:55:36,824 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-04-17 17:55:36,824 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 17:55:36,824 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-04-17 17:55:36,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-04-17 17:55:36,825 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 17:55:36,825 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 17:55:36,825 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 17:55:36,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 17:55:36,825 INFO L82 PathProgramCache]: Analyzing trace with hash -958438309, now seen corresponding path program 1 times [2020-04-17 17:55:36,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 17:55:36,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739629077] [2020-04-17 17:55:36,826 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 17:55:36,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 17:55:36,869 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 17:55:36,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739629077] [2020-04-17 17:55:36,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 17:55:36,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 17:55:36,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413778695] [2020-04-17 17:55:36,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 17:55:36,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 17:55:36,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 17:55:36,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 17:55:36,871 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-04-17 17:55:36,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 17:55:36,888 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-04-17 17:55:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 17:55:36,889 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-04-17 17:55:36,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 17:55:36,889 INFO L225 Difference]: With dead ends: 32 [2020-04-17 17:55:36,890 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 17:55:36,890 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 17:55:36,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 17:55:36,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 17:55:36,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 17:55:36,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 17:55:36,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-04-17 17:55:36,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 17:55:36,893 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 17:55:36,893 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 17:55:36,893 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 17:55:36,893 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 17:55:36,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 05:55:36 BasicIcfg [2020-04-17 17:55:36,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 17:55:36,903 INFO L168 Benchmark]: Toolchain (without parser) took 4895.42 ms. Allocated memory was 137.4 MB in the beginning and 249.6 MB in the end (delta: 112.2 MB). Free memory was 100.9 MB in the beginning and 192.4 MB in the end (delta: -91.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2020-04-17 17:55:36,910 INFO L168 Benchmark]: CDTParser took 2.94 ms. Allocated memory is still 137.4 MB. Free memory is still 120.1 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 17:55:36,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.47 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 99.2 MB in the beginning and 159.2 MB in the end (delta: -60.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2020-04-17 17:55:36,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.08 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-17 17:55:36,915 INFO L168 Benchmark]: Boogie Preprocessor took 28.72 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-04-17 17:55:36,916 INFO L168 Benchmark]: RCFGBuilder took 437.45 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 133.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. [2020-04-17 17:55:36,917 INFO L168 Benchmark]: TraceAbstraction took 3595.28 ms. Allocated memory was 202.4 MB in the beginning and 249.6 MB in the end (delta: 47.2 MB). Free memory was 132.7 MB in the beginning and 192.4 MB in the end (delta: -59.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 17:55:36,929 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.94 ms. Allocated memory is still 137.4 MB. Free memory is still 120.1 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.47 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 99.2 MB in the beginning and 159.2 MB in the end (delta: -60.0 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.08 ms. Allocated memory is still 202.4 MB. Free memory was 159.2 MB in the beginning and 157.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.72 ms. Allocated memory is still 202.4 MB. Free memory was 157.2 MB in the beginning and 155.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 437.45 ms. Allocated memory is still 202.4 MB. Free memory was 155.1 MB in the beginning and 133.7 MB in the end (delta: 21.4 MB). Peak memory consumption was 21.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3595.28 ms. Allocated memory was 202.4 MB in the beginning and 249.6 MB in the end (delta: 47.2 MB). Free memory was 132.7 MB in the beginning and 192.4 MB in the end (delta: -59.7 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: 1.8s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 630 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1996 CheckedPairsTotal, 58 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, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 109 SDtfs, 110 SDslu, 133 SDs, 0 SdLazy, 99 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2904 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...