/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:53:06,080 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:53:06,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:53:06,095 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:53:06,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:53:06,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:53:06,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:53:06,099 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:53:06,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:53:06,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:53:06,103 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:53:06,104 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:53:06,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:53:06,105 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:53:06,106 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:53:06,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:53:06,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:53:06,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:53:06,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:53:06,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:53:06,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:53:06,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:53:06,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:53:06,116 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:53:06,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 03:53:06,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 03:53:06,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 03:53:06,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 03:53:06,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 03:53:06,121 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 03:53:06,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:53:06,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:53:06,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:53:06,124 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:53:06,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:53:06,125 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:53:06,125 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:53:06,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:53:06,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:53:06,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:53:06,127 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:53:06,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 03:53:06,142 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:53:06,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:53:06,144 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:53:06,144 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:53:06,144 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:53:06,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:53:06,145 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:53:06,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:53:06,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:53:06,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:53:06,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:53:06,146 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:53:06,146 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:53:06,146 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:53:06,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:53:06,146 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:53:06,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:53:06,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:53:06,147 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:53:06,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:53:06,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:53:06,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:53:06,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:53:06,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:53:06,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:53:06,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:53:06,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:53:06,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:53:06,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:53:06,425 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:53:06,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:53:06,439 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:53:06,441 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:53:06,441 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:53:06,442 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2019-12-27 03:53:06,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30a7ab6e1/30179ff9857f4fd7b20dcf84ac87c473/FLAGac3de2021 [2019-12-27 03:53:07,105 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:53:07,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe020_pso.opt.i [2019-12-27 03:53:07,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30a7ab6e1/30179ff9857f4fd7b20dcf84ac87c473/FLAGac3de2021 [2019-12-27 03:53:07,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30a7ab6e1/30179ff9857f4fd7b20dcf84ac87c473 [2019-12-27 03:53:07,381 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:53:07,383 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:53:07,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:53:07,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:53:07,391 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:53:07,392 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:53:07" (1/1) ... [2019-12-27 03:53:07,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f84663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:07, skipping insertion in model container [2019-12-27 03:53:07,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:53:07" (1/1) ... [2019-12-27 03:53:07,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:53:07,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:53:07,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:53:08,001 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:53:08,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:53:08,154 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:53:08,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08 WrapperNode [2019-12-27 03:53:08,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:53:08,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:53:08,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:53:08,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:53:08,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,181 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:53:08,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:53:08,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:53:08,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:53:08,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... [2019-12-27 03:53:08,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:53:08,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:53:08,233 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:53:08,233 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:53:08,234 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:53:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:53:08,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:53:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:53:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:53:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:53:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:53:08,300 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:53:08,300 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:53:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:53:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:53:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:53:08,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:53:08,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:53:08,303 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 03:53:08,654 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:53:08,655 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:53:08,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:53:08 BoogieIcfgContainer [2019-12-27 03:53:08,656 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:53:08,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:53:08,658 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:53:08,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:53:08,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:53:07" (1/3) ... [2019-12-27 03:53:08,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9c360d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:53:08, skipping insertion in model container [2019-12-27 03:53:08,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:53:08" (2/3) ... [2019-12-27 03:53:08,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d9c360d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:53:08, skipping insertion in model container [2019-12-27 03:53:08,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:53:08" (3/3) ... [2019-12-27 03:53:08,664 INFO L109 eAbstractionObserver]: Analyzing ICFG safe020_pso.opt.i [2019-12-27 03:53:08,675 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:53:08,675 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:53:08,682 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:53:08,683 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:53:08,715 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,715 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,715 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,716 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,716 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,717 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,717 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,718 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,718 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,718 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,719 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,719 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,720 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,724 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,724 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,725 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,725 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,725 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,732 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,732 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,733 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,733 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,742 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,742 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,743 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,743 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,753 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,753 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,753 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,753 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:53:08,768 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 03:53:08,783 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:53:08,784 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:53:08,784 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:53:08,784 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:53:08,784 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:53:08,784 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:53:08,784 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:53:08,785 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:53:08,797 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 03:53:08,799 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 03:53:08,840 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 03:53:08,840 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:53:08,847 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. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:53:08,849 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 03:53:08,868 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 03:53:08,868 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:53:08,871 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. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:53:08,873 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 03:53:08,874 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:53:10,353 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 03:53:10,504 INFO L206 etLargeBlockEncoding]: Checked pairs total: 479 [2019-12-27 03:53:10,504 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 03:53:10,508 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 03:53:10,518 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 03:53:10,520 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 03:53:10,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 03:53:10,527 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:53:10,528 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:53:10,528 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:53:10,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:53:10,534 INFO L82 PathProgramCache]: Analyzing trace with hash 492740166, now seen corresponding path program 1 times [2019-12-27 03:53:10,544 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:53:10,544 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894509042] [2019-12-27 03:53:10,544 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:53:10,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:53:10,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:53:10,816 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894509042] [2019-12-27 03:53:10,817 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:53:10,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:53:10,821 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311424725] [2019-12-27 03:53:10,827 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:53:10,827 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:53:10,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:53:10,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:53:10,841 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 03:53:10,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:53:10,882 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 03:53:10,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:53:10,884 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 03:53:10,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:53:10,896 INFO L225 Difference]: With dead ends: 44 [2019-12-27 03:53:10,896 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 03:53:10,898 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:53:10,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 03:53:10,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 03:53:10,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 03:53:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 03:53:10,939 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 03:53:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:53:10,940 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 03:53:10,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:53:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 03:53:10,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:53:10,941 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:53:10,942 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:53:10,942 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:53:10,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:53:10,942 INFO L82 PathProgramCache]: Analyzing trace with hash 709143484, now seen corresponding path program 1 times [2019-12-27 03:53:10,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:53:10,943 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057037140] [2019-12-27 03:53:10,943 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:53:10,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:53:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:53:11,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057037140] [2019-12-27 03:53:11,032 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:53:11,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:53:11,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813189023] [2019-12-27 03:53:11,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:53:11,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:53:11,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:53:11,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:53:11,035 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 03:53:11,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:53:11,051 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-27 03:53:11,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:53:11,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 03:53:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:53:11,053 INFO L225 Difference]: With dead ends: 34 [2019-12-27 03:53:11,053 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 03:53:11,054 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:53:11,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 03:53:11,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 03:53:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 03:53:11,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 03:53:11,060 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-27 03:53:11,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:53:11,060 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 03:53:11,060 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:53:11,061 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 03:53:11,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:53:11,061 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:53:11,062 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:53:11,062 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:53:11,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:53:11,062 INFO L82 PathProgramCache]: Analyzing trace with hash -1904869198, now seen corresponding path program 1 times [2019-12-27 03:53:11,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:53:11,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15071783] [2019-12-27 03:53:11,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:53:11,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:53:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:53:11,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15071783] [2019-12-27 03:53:11,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:53:11,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:53:11,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140725762] [2019-12-27 03:53:11,121 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:53:11,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:53:11,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:53:11,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:53:11,122 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 03:53:11,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:53:11,133 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 03:53:11,134 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:53:11,134 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 03:53:11,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:53:11,135 INFO L225 Difference]: With dead ends: 36 [2019-12-27 03:53:11,135 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 03:53:11,135 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:53:11,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 03:53:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 03:53:11,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 03:53:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 03:53:11,139 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 03:53:11,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:53:11,140 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 03:53:11,140 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:53:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 03:53:11,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:53:11,141 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:53:11,141 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:53:11,141 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:53:11,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:53:11,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1078655690, now seen corresponding path program 1 times [2019-12-27 03:53:11,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:53:11,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384456341] [2019-12-27 03:53:11,142 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:53:11,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:53:11,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:53:11,198 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384456341] [2019-12-27 03:53:11,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:53:11,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:53:11,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013409481] [2019-12-27 03:53:11,199 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:53:11,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:53:11,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:53:11,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:53:11,200 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-27 03:53:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:53:11,229 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 03:53:11,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:53:11,230 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 03:53:11,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:53:11,231 INFO L225 Difference]: With dead ends: 25 [2019-12-27 03:53:11,231 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 03:53:11,231 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:53:11,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 03:53:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 03:53:11,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 03:53:11,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 03:53:11,234 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 03:53:11,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:53:11,235 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 03:53:11,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:53:11,235 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 03:53:11,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:53:11,235 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:53:11,236 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:53:11,236 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:53:11,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:53:11,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1824813225, now seen corresponding path program 1 times [2019-12-27 03:53:11,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:53:11,237 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705329838] [2019-12-27 03:53:11,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:53:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:53:11,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:53:11,300 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705329838] [2019-12-27 03:53:11,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:53:11,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:53:11,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365657809] [2019-12-27 03:53:11,302 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:53:11,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:53:11,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:53:11,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:53:11,302 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 03:53:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:53:11,322 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 03:53:11,323 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:53:11,323 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:53:11,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:53:11,324 INFO L225 Difference]: With dead ends: 16 [2019-12-27 03:53:11,324 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:53:11,325 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:53:11,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:53:11,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:53:11,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:53:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:53:11,326 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 03:53:11,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:53:11,326 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:53:11,326 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:53:11,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:53:11,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:53:11,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:53:11 BasicIcfg [2019-12-27 03:53:11,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:53:11,333 INFO L168 Benchmark]: Toolchain (without parser) took 3949.62 ms. Allocated memory was 138.4 MB in the beginning and 250.1 MB in the end (delta: 111.7 MB). Free memory was 99.9 MB in the beginning and 154.1 MB in the end (delta: -54.2 MB). Peak memory consumption was 57.4 MB. Max. memory is 7.1 GB. [2019-12-27 03:53:11,334 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 03:53:11,335 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.48 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.7 MB in the beginning and 158.6 MB in the end (delta: -58.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-12-27 03:53:11,336 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.44 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 03:53:11,336 INFO L168 Benchmark]: Boogie Preprocessor took 27.61 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 03:53:11,337 INFO L168 Benchmark]: RCFGBuilder took 423.16 ms. Allocated memory is still 201.9 MB. Free memory was 155.2 MB in the beginning and 134.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 03:53:11,338 INFO L168 Benchmark]: TraceAbstraction took 2673.32 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 134.8 MB in the beginning and 154.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2019-12-27 03:53:11,343 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.48 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 99.7 MB in the beginning and 158.6 MB in the end (delta: -58.9 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.44 ms. Allocated memory is still 201.9 MB. Free memory was 158.6 MB in the beginning and 156.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.61 ms. Allocated memory is still 201.9 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.16 ms. Allocated memory is still 201.9 MB. Free memory was 155.2 MB in the beginning and 134.8 MB in the end (delta: 20.4 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2673.32 ms. Allocated memory was 201.9 MB in the beginning and 250.1 MB in the end (delta: 48.2 MB). Free memory was 134.8 MB in the beginning and 154.1 MB in the end (delta: -19.4 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 244 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 479 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 16 SDslu, 38 SDs, 0 SdLazy, 24 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 898 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...