/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/safe011_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 14:38:17,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 14:38:17,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 14:38:17,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 14:38:17,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 14:38:17,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 14:38:17,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 14:38:17,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 14:38:17,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 14:38:17,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 14:38:17,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 14:38:17,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 14:38:17,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 14:38:17,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 14:38:17,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 14:38:17,072 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 14:38:17,072 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 14:38:17,073 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 14:38:17,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 14:38:17,077 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 14:38:17,079 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 14:38:17,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 14:38:17,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 14:38:17,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 14:38:17,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 14:38:17,094 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 14:38:17,096 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 14:38:17,096 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 14:38:17,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 14:38:17,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 14:38:17,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 14:38:17,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 14:38:17,102 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 14:38:17,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 14:38:17,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 14:38:17,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 14:38:17,108 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 [2019-12-18 14:38:17,129 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 14:38:17,129 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 14:38:17,131 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 14:38:17,131 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 14:38:17,131 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 14:38:17,132 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 14:38:17,132 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 14:38:17,132 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 14:38:17,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 14:38:17,133 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 14:38:17,133 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 14:38:17,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 14:38:17,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 14:38:17,134 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 14:38:17,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 14:38:17,135 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 14:38:17,135 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 14:38:17,135 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 14:38:17,135 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 14:38:17,136 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 14:38:17,136 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 14:38:17,136 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:38:17,136 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 14:38:17,137 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 14:38:17,137 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 14:38:17,137 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 14:38:17,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 14:38:17,137 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 14:38:17,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 14:38:17,138 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 14:38:17,441 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 14:38:17,454 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 14:38:17,458 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 14:38:17,459 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 14:38:17,460 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 14:38:17,460 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-18 14:38:17,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f44b7a7f/4c28efd7c0e64847b009bdbbf5054d36/FLAG34d078a39 [2019-12-18 14:38:18,082 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 14:38:18,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe011_tso.opt.i [2019-12-18 14:38:18,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f44b7a7f/4c28efd7c0e64847b009bdbbf5054d36/FLAG34d078a39 [2019-12-18 14:38:18,372 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f44b7a7f/4c28efd7c0e64847b009bdbbf5054d36 [2019-12-18 14:38:18,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 14:38:18,385 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 14:38:18,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 14:38:18,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 14:38:18,389 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 14:38:18,390 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:38:18" (1/1) ... [2019-12-18 14:38:18,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40cd7482 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:18, skipping insertion in model container [2019-12-18 14:38:18,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 02:38:18" (1/1) ... [2019-12-18 14:38:18,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 14:38:18,458 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 14:38:18,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:38:18,962 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 14:38:19,005 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 14:38:19,087 INFO L208 MainTranslator]: Completed translation [2019-12-18 14:38:19,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19 WrapperNode [2019-12-18 14:38:19,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 14:38:19,089 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 14:38:19,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 14:38:19,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 14:38:19,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,144 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 14:38:19,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 14:38:19,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 14:38:19,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 14:38:19,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,158 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... [2019-12-18 14:38:19,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 14:38:19,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 14:38:19,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 14:38:19,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 14:38:19,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 14:38:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 14:38:19,237 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 14:38:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 14:38:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 14:38:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 14:38:19,238 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 14:38:19,238 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 14:38:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 14:38:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 14:38:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 14:38:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 14:38:19,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 14:38:19,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 14:38:19,241 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 14:38:19,592 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 14:38:19,593 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 14:38:19,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:38:19 BoogieIcfgContainer [2019-12-18 14:38:19,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 14:38:19,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 14:38:19,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 14:38:19,599 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 14:38:19,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 02:38:18" (1/3) ... [2019-12-18 14:38:19,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104d5aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:38:19, skipping insertion in model container [2019-12-18 14:38:19,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 02:38:19" (2/3) ... [2019-12-18 14:38:19,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104d5aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 02:38:19, skipping insertion in model container [2019-12-18 14:38:19,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 02:38:19" (3/3) ... [2019-12-18 14:38:19,603 INFO L109 eAbstractionObserver]: Analyzing ICFG safe011_tso.opt.i [2019-12-18 14:38:19,614 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 14:38:19,615 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 14:38:19,623 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 14:38:19,624 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 14:38:19,652 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,652 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,653 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,653 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,654 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,654 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,655 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,655 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,655 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,656 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,656 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,656 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,657 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,657 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,657 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,657 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,658 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,661 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,661 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,662 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,662 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,669 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,669 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,670 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,670 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,673 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,673 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,673 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,674 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 14:38:19,690 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 14:38:19,711 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 14:38:19,712 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 14:38:19,712 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 14:38:19,712 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 14:38:19,712 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 14:38:19,712 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 14:38:19,713 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 14:38:19,713 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 14:38:19,724 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-18 14:38:19,727 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 14:38:19,778 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 14:38:19,778 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:38:19,785 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:38:19,788 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-18 14:38:19,807 INFO L126 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-18 14:38:19,807 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 14:38:19,808 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/57 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 14:38:19,811 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 14:38:19,812 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 14:38:21,279 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-18 14:38:21,348 INFO L206 etLargeBlockEncoding]: Checked pairs total: 507 [2019-12-18 14:38:21,349 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-18 14:38:21,353 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-18 14:38:21,363 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-18 14:38:21,366 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-18 14:38:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 14:38:21,373 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:21,374 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:21,374 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:21,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:21,381 INFO L82 PathProgramCache]: Analyzing trace with hash 1331014227, now seen corresponding path program 1 times [2019-12-18 14:38:21,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:21,393 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874068206] [2019-12-18 14:38:21,393 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:21,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:21,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:21,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874068206] [2019-12-18 14:38:21,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:21,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 14:38:21,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402181248] [2019-12-18 14:38:21,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:38:21,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:21,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:38:21,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:38:21,673 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-18 14:38:21,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:21,703 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-18 14:38:21,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:38:21,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 14:38:21,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:21,717 INFO L225 Difference]: With dead ends: 50 [2019-12-18 14:38:21,717 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 14:38:21,719 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:38:21,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 14:38:21,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 14:38:21,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 14:38:21,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 14:38:21,758 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 14:38:21,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:21,759 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 14:38:21,759 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:38:21,759 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 14:38:21,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 14:38:21,760 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:21,761 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:21,761 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:21,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:21,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1688231858, now seen corresponding path program 1 times [2019-12-18 14:38:21,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:21,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947033836] [2019-12-18 14:38:21,762 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:21,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:21,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:21,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947033836] [2019-12-18 14:38:21,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:21,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:38:21,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520528142] [2019-12-18 14:38:21,884 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 14:38:21,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:21,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 14:38:21,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 14:38:21,885 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 14:38:21,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:21,905 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 14:38:21,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 14:38:21,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 14:38:21,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:21,907 INFO L225 Difference]: With dead ends: 36 [2019-12-18 14:38:21,907 INFO L226 Difference]: Without dead ends: 28 [2019-12-18 14:38:21,908 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 14:38:21,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-18 14:38:21,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-18 14:38:21,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-18 14:38:21,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-18 14:38:21,913 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-18 14:38:21,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:21,913 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-18 14:38:21,913 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 14:38:21,914 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-18 14:38:21,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 14:38:21,914 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:21,914 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:21,915 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:21,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:21,915 INFO L82 PathProgramCache]: Analyzing trace with hash -848747306, now seen corresponding path program 1 times [2019-12-18 14:38:21,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:21,916 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632334277] [2019-12-18 14:38:21,916 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:21,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:21,980 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632334277] [2019-12-18 14:38:21,980 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:21,980 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:38:21,980 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444179554] [2019-12-18 14:38:21,981 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:38:21,981 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:21,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:38:21,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:38:21,982 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-18 14:38:21,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:21,990 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-18 14:38:21,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:38:21,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 14:38:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:21,991 INFO L225 Difference]: With dead ends: 29 [2019-12-18 14:38:21,991 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 14:38:21,992 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:38:21,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 14:38:21,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 14:38:21,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 14:38:21,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 14:38:21,995 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 14:38:21,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:21,995 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 14:38:21,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:38:21,996 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 14:38:21,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 14:38:21,996 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 14:38:21,996 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 14:38:21,997 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 14:38:21,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 14:38:21,997 INFO L82 PathProgramCache]: Analyzing trace with hash -541362955, now seen corresponding path program 1 times [2019-12-18 14:38:21,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 14:38:21,998 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408589443] [2019-12-18 14:38:21,998 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 14:38:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 14:38:22,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 14:38:22,049 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408589443] [2019-12-18 14:38:22,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 14:38:22,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 14:38:22,050 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417432810] [2019-12-18 14:38:22,050 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 14:38:22,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 14:38:22,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 14:38:22,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:38:22,051 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-18 14:38:22,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 14:38:22,058 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 14:38:22,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 14:38:22,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-18 14:38:22,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 14:38:22,059 INFO L225 Difference]: With dead ends: 16 [2019-12-18 14:38:22,059 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 14:38:22,060 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 14:38:22,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 14:38:22,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 14:38:22,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 14:38:22,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 14:38:22,061 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 14:38:22,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 14:38:22,061 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 14:38:22,061 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 14:38:22,061 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 14:38:22,061 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 14:38:22,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 02:38:22 BasicIcfg [2019-12-18 14:38:22,068 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 14:38:22,071 INFO L168 Benchmark]: Toolchain (without parser) took 3685.88 ms. Allocated memory was 144.7 MB in the beginning and 248.5 MB in the end (delta: 103.8 MB). Free memory was 100.0 MB in the beginning and 173.6 MB in the end (delta: -73.6 MB). Peak memory consumption was 30.2 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:22,073 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 14:38:22,075 INFO L168 Benchmark]: CACSL2BoogieTranslator took 702.91 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.6 MB in the beginning and 159.2 MB in the end (delta: -59.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:22,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.40 ms. Allocated memory is still 201.3 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:22,083 INFO L168 Benchmark]: Boogie Preprocessor took 27.80 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:22,084 INFO L168 Benchmark]: RCFGBuilder took 421.63 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 135.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:22,084 INFO L168 Benchmark]: TraceAbstraction took 2472.49 ms. Allocated memory was 201.3 MB in the beginning and 248.5 MB in the end (delta: 47.2 MB). Free memory was 135.1 MB in the beginning and 173.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. [2019-12-18 14:38:22,095 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 144.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 702.91 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.6 MB in the beginning and 159.2 MB in the end (delta: -59.6 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.40 ms. Allocated memory is still 201.3 MB. Free memory was 159.2 MB in the beginning and 157.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.80 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 155.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.63 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 135.1 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2472.49 ms. Allocated memory was 201.3 MB in the beginning and 248.5 MB in the end (delta: 47.2 MB). Free memory was 135.1 MB in the beginning and 173.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 8.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 249 VarBasedMoverChecksPositive, 14 VarBasedMoverChecksNegative, 2 SemBasedMoverChecksPositive, 14 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 507 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 19 SDslu, 25 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 558 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, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...