/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/thin000_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-21 22:05:27,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-21 22:05:27,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-21 22:05:28,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-21 22:05:28,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-21 22:05:28,041 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-21 22:05:28,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-21 22:05:28,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-21 22:05:28,051 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-21 22:05:28,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-21 22:05:28,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-21 22:05:28,055 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-21 22:05:28,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-21 22:05:28,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-21 22:05:28,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-21 22:05:28,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-21 22:05:28,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-21 22:05:28,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-21 22:05:28,068 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-21 22:05:28,076 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-21 22:05:28,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-21 22:05:28,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-21 22:05:28,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-21 22:05:28,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-21 22:05:28,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-21 22:05:28,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-21 22:05:28,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-21 22:05:28,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-21 22:05:28,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-21 22:05:28,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-21 22:05:28,102 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-21 22:05:28,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-21 22:05:28,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-21 22:05:28,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-21 22:05:28,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-21 22:05:28,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-21 22:05:28,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-21 22:05:28,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-21 22:05:28,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-21 22:05:28,114 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-21 22:05:28,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-21 22:05:28,117 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 [2020-10-21 22:05:28,153 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-21 22:05:28,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-21 22:05:28,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-21 22:05:28,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-21 22:05:28,156 INFO L138 SettingsManager]: * Use SBE=true [2020-10-21 22:05:28,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-21 22:05:28,157 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-21 22:05:28,157 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-21 22:05:28,157 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-21 22:05:28,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-21 22:05:28,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-21 22:05:28,159 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-21 22:05:28,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-21 22:05:28,159 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-21 22:05:28,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-21 22:05:28,160 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-21 22:05:28,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-21 22:05:28,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-21 22:05:28,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-21 22:05:28,160 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-21 22:05:28,161 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-21 22:05:28,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-21 22:05:28,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-21 22:05:28,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-21 22:05:28,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-21 22:05:28,162 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-21 22:05:28,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-21 22:05:28,162 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-21 22:05:28,162 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-21 22:05:28,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-21 22:05:28,498 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-21 22:05:28,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-21 22:05:28,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-21 22:05:28,529 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-21 22:05:28,530 INFO L275 PluginConnector]: CDTParser initialized [2020-10-21 22:05:28,531 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2020-10-21 22:05:28,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b88af300/33a85faab38c4f22835d85e9e5650e71/FLAG3a9ad05a4 [2020-10-21 22:05:29,126 INFO L306 CDTParser]: Found 1 translation units. [2020-10-21 22:05:29,127 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin000_tso.oepc.i [2020-10-21 22:05:29,140 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b88af300/33a85faab38c4f22835d85e9e5650e71/FLAG3a9ad05a4 [2020-10-21 22:05:29,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b88af300/33a85faab38c4f22835d85e9e5650e71 [2020-10-21 22:05:29,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-21 22:05:29,445 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-21 22:05:29,446 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:29,446 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-21 22:05:29,450 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-21 22:05:29,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:29" (1/1) ... [2020-10-21 22:05:29,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d8b784a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:29, skipping insertion in model container [2020-10-21 22:05:29,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 10:05:29" (1/1) ... [2020-10-21 22:05:29,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-21 22:05:29,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-21 22:05:30,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:30,031 INFO L203 MainTranslator]: Completed pre-run [2020-10-21 22:05:30,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-21 22:05:30,174 INFO L208 MainTranslator]: Completed translation [2020-10-21 22:05:30,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30 WrapperNode [2020-10-21 22:05:30,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-21 22:05:30,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:30,176 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-21 22:05:30,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-21 22:05:30,186 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-21 22:05:30,228 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-21 22:05:30,228 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-21 22:05:30,228 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-21 22:05:30,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,242 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,242 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,252 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (1/1) ... [2020-10-21 22:05:30,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-21 22:05:30,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-21 22:05:30,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-21 22:05:30,258 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-21 22:05:30,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (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 [2020-10-21 22:05:30,328 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-21 22:05:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-21 22:05:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-21 22:05:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-21 22:05:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-21 22:05:30,329 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-21 22:05:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-21 22:05:30,330 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-21 22:05:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-21 22:05:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-21 22:05:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-21 22:05:30,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-21 22:05:30,332 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-21 22:05:30,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-21 22:05:30,718 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-21 22:05:30,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:30 BoogieIcfgContainer [2020-10-21 22:05:30,720 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-21 22:05:30,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-21 22:05:30,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-21 22:05:30,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-21 22:05:30,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 10:05:29" (1/3) ... [2020-10-21 22:05:30,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c704d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:30, skipping insertion in model container [2020-10-21 22:05:30,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 10:05:30" (2/3) ... [2020-10-21 22:05:30,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c704d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 10:05:30, skipping insertion in model container [2020-10-21 22:05:30,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 10:05:30" (3/3) ... [2020-10-21 22:05:30,730 INFO L111 eAbstractionObserver]: Analyzing ICFG thin000_tso.oepc.i [2020-10-21 22:05:30,742 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-21 22:05:30,743 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-21 22:05:30,751 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-21 22:05:30,752 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-21 22:05:30,781 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,782 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,782 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,783 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,784 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,784 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,785 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,792 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,792 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,793 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,805 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,806 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-21 22:05:30,811 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-21 22:05:30,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-21 22:05:30,844 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-21 22:05:30,844 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-21 22:05:30,844 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-21 22:05:30,844 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-21 22:05:30,844 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-21 22:05:30,845 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-21 22:05:30,845 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-21 22:05:30,845 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-21 22:05:30,859 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-21 22:05:30,862 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-21 22:05:30,865 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 65 transitions, 140 flow [2020-10-21 22:05:30,867 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 69 places, 65 transitions, 140 flow [2020-10-21 22:05:30,915 INFO L129 PetriNetUnfolder]: 3/63 cut-off events. [2020-10-21 22:05:30,916 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-21 22:05:30,921 INFO L80 FinitePrefix]: Finished finitePrefix Result has 70 conditions, 63 events. 3/63 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 43 event pairs, 0 based on Foata normal form. 0/59 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2020-10-21 22:05:30,923 INFO L116 LiptonReduction]: Number of co-enabled transitions 792 [2020-10-21 22:05:32,240 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-10-21 22:05:32,553 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-10-21 22:05:32,683 INFO L131 LiptonReduction]: Checked pairs total: 1892 [2020-10-21 22:05:32,683 INFO L133 LiptonReduction]: Total number of compositions: 66 [2020-10-21 22:05:32,691 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 23 places, 17 transitions, 44 flow [2020-10-21 22:05:32,726 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 90 states. [2020-10-21 22:05:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states. [2020-10-21 22:05:32,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-21 22:05:32,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:32,738 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-21 22:05:32,738 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:32,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:32,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1281927427, now seen corresponding path program 1 times [2020-10-21 22:05:32,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:32,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424063092] [2020-10-21 22:05:32,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:32,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:32,937 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424063092] [2020-10-21 22:05:32,941 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:32,941 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:32,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207146613] [2020-10-21 22:05:32,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-21 22:05:32,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:32,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-21 22:05:32,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:05:32,972 INFO L87 Difference]: Start difference. First operand 90 states. Second operand 2 states. [2020-10-21 22:05:33,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:33,001 INFO L93 Difference]: Finished difference Result 90 states and 200 transitions. [2020-10-21 22:05:33,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-21 22:05:33,002 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2020-10-21 22:05:33,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:33,013 INFO L225 Difference]: With dead ends: 90 [2020-10-21 22:05:33,013 INFO L226 Difference]: Without dead ends: 74 [2020-10-21 22:05:33,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-21 22:05:33,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-21 22:05:33,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-21 22:05:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-21 22:05:33,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 160 transitions. [2020-10-21 22:05:33,055 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 160 transitions. Word has length 6 [2020-10-21 22:05:33,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:33,055 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 160 transitions. [2020-10-21 22:05:33,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-21 22:05:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 160 transitions. [2020-10-21 22:05:33,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-21 22:05:33,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:33,057 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:33,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-21 22:05:33,057 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:33,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:33,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1085050971, now seen corresponding path program 1 times [2020-10-21 22:05:33,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:33,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985944460] [2020-10-21 22:05:33,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:33,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:33,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985944460] [2020-10-21 22:05:33,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:33,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-21 22:05:33,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934766690] [2020-10-21 22:05:33,206 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-21 22:05:33,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:33,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-21 22:05:33,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-21 22:05:33,207 INFO L87 Difference]: Start difference. First operand 74 states and 160 transitions. Second operand 4 states. [2020-10-21 22:05:33,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:33,240 INFO L93 Difference]: Finished difference Result 82 states and 166 transitions. [2020-10-21 22:05:33,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-21 22:05:33,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-21 22:05:33,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:33,242 INFO L225 Difference]: With dead ends: 82 [2020-10-21 22:05:33,242 INFO L226 Difference]: Without dead ends: 66 [2020-10-21 22:05:33,244 INFO L677 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 [2020-10-21 22:05:33,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-21 22:05:33,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-21 22:05:33,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-21 22:05:33,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 138 transitions. [2020-10-21 22:05:33,254 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 138 transitions. Word has length 7 [2020-10-21 22:05:33,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:33,254 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 138 transitions. [2020-10-21 22:05:33,254 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-21 22:05:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 138 transitions. [2020-10-21 22:05:33,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-21 22:05:33,255 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:33,256 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:33,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-21 22:05:33,256 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:33,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:33,257 INFO L82 PathProgramCache]: Analyzing trace with hash 722349434, now seen corresponding path program 1 times [2020-10-21 22:05:33,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:33,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058906990] [2020-10-21 22:05:33,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:33,368 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:33,369 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058906990] [2020-10-21 22:05:33,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:33,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-21 22:05:33,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702274661] [2020-10-21 22:05:33,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-21 22:05:33,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:33,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-21 22:05:33,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-21 22:05:33,372 INFO L87 Difference]: Start difference. First operand 66 states and 138 transitions. Second operand 5 states. [2020-10-21 22:05:33,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:33,432 INFO L93 Difference]: Finished difference Result 78 states and 155 transitions. [2020-10-21 22:05:33,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-21 22:05:33,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2020-10-21 22:05:33,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:33,434 INFO L225 Difference]: With dead ends: 78 [2020-10-21 22:05:33,434 INFO L226 Difference]: Without dead ends: 42 [2020-10-21 22:05:33,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-21 22:05:33,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-21 22:05:33,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-21 22:05:33,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-21 22:05:33,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 76 transitions. [2020-10-21 22:05:33,441 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 76 transitions. Word has length 8 [2020-10-21 22:05:33,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:33,441 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 76 transitions. [2020-10-21 22:05:33,441 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-21 22:05:33,442 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 76 transitions. [2020-10-21 22:05:33,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-21 22:05:33,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-21 22:05:33,443 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-21 22:05:33,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-21 22:05:33,443 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-21 22:05:33,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-21 22:05:33,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1631439828, now seen corresponding path program 1 times [2020-10-21 22:05:33,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-21 22:05:33,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959069925] [2020-10-21 22:05:33,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-21 22:05:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-21 22:05:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-21 22:05:33,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959069925] [2020-10-21 22:05:33,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-21 22:05:33,524 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-21 22:05:33,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535985909] [2020-10-21 22:05:33,525 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-21 22:05:33,525 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-21 22:05:33,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-21 22:05:33,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-21 22:05:33,526 INFO L87 Difference]: Start difference. First operand 42 states and 76 transitions. Second operand 6 states. [2020-10-21 22:05:33,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-21 22:05:33,655 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2020-10-21 22:05:33,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-21 22:05:33,656 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-21 22:05:33,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-21 22:05:33,657 INFO L225 Difference]: With dead ends: 36 [2020-10-21 22:05:33,657 INFO L226 Difference]: Without dead ends: 0 [2020-10-21 22:05:33,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-21 22:05:33,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-21 22:05:33,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-21 22:05:33,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-21 22:05:33,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-21 22:05:33,658 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-10-21 22:05:33,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-21 22:05:33,659 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-21 22:05:33,659 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-21 22:05:33,659 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-21 22:05:33,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-21 22:05:33,659 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-21 22:05:33,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 10:05:33 BasicIcfg [2020-10-21 22:05:33,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-21 22:05:33,665 INFO L168 Benchmark]: Toolchain (without parser) took 4224.27 ms. Allocated memory was 140.5 MB in the beginning and 246.9 MB in the end (delta: 106.4 MB). Free memory was 102.6 MB in the beginning and 201.0 MB in the end (delta: -98.4 MB). Peak memory consumption was 8.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:33,665 INFO L168 Benchmark]: CDTParser took 3.86 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 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. [2020-10-21 22:05:33,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 729.39 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 101.6 MB in the beginning and 156.4 MB in the end (delta: -54.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:33,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 201.9 MB. Free memory was 156.4 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:33,668 INFO L168 Benchmark]: Boogie Preprocessor took 29.65 ms. Allocated memory is still 201.9 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:33,669 INFO L168 Benchmark]: RCFGBuilder took 462.30 ms. Allocated memory is still 201.9 MB. Free memory was 153.0 MB in the beginning and 130.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2020-10-21 22:05:33,670 INFO L168 Benchmark]: TraceAbstraction took 2940.86 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 130.0 MB in the beginning and 201.0 MB in the end (delta: -71.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-21 22:05:33,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.86 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 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 729.39 ms. Allocated memory was 140.5 MB in the beginning and 201.9 MB in the end (delta: 61.3 MB). Free memory was 101.6 MB in the beginning and 156.4 MB in the end (delta: -54.8 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.71 ms. Allocated memory is still 201.9 MB. Free memory was 156.4 MB in the beginning and 154.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.65 ms. Allocated memory is still 201.9 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.30 ms. Allocated memory is still 201.9 MB. Free memory was 153.0 MB in the beginning and 130.7 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2940.86 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 130.0 MB in the beginning and 201.0 MB in the end (delta: -71.0 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 543 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 22 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 43 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.8s, 69 PlacesBefore, 23 PlacesAfterwards, 65 TransitionsBefore, 17 TransitionsAfterwards, 792 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 2 ChoiceCompositions, 66 TotalNumberOfCompositions, 1892 MoverChecksTotal - PositiveResult [Line: 17]: 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 3 procedures, 63 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 56 SDtfs, 67 SDslu, 66 SDs, 0 SdLazy, 44 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...