/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 13:47:52,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 13:47:52,069 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 13:47:52,091 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 13:47:52,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 13:47:52,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 13:47:52,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 13:47:52,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 13:47:52,100 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 13:47:52,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 13:47:52,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 13:47:52,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 13:47:52,103 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 13:47:52,104 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 13:47:52,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 13:47:52,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 13:47:52,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 13:47:52,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 13:47:52,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 13:47:52,112 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 13:47:52,114 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 13:47:52,115 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 13:47:52,116 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 13:47:52,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 13:47:52,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 13:47:52,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 13:47:52,120 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 13:47:52,121 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 13:47:52,121 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 13:47:52,122 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 13:47:52,122 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 13:47:52,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 13:47:52,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 13:47:52,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 13:47:52,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 13:47:52,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 13:47:52,127 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 13:47:52,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 13:47:52,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 13:47:52,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 13:47:52,129 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 13:47:52,130 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-NoLbe.epf [2019-12-27 13:47:52,151 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 13:47:52,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 13:47:52,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 13:47:52,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 13:47:52,156 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 13:47:52,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 13:47:52,157 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 13:47:52,158 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 13:47:52,158 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 13:47:52,158 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 13:47:52,158 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 13:47:52,158 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 13:47:52,159 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 13:47:52,160 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 13:47:52,160 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 13:47:52,160 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 13:47:52,160 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 13:47:52,161 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 13:47:52,161 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 13:47:52,161 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 13:47:52,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 13:47:52,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 13:47:52,162 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 13:47:52,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 13:47:52,163 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 13:47:52,163 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 13:47:52,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 13:47:52,163 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 13:47:52,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 13:47:52,163 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 13:47:52,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 13:47:52,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 13:47:52,475 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 13:47:52,476 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 13:47:52,477 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 13:47:52,478 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-27 13:47:52,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1d84329/0543bf2a4c3743ca8e33042b2688a43f/FLAGc340ec4ce [2019-12-27 13:47:53,122 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 13:47:53,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2019-12-27 13:47:53,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1d84329/0543bf2a4c3743ca8e33042b2688a43f/FLAGc340ec4ce [2019-12-27 13:47:53,448 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b1d84329/0543bf2a4c3743ca8e33042b2688a43f [2019-12-27 13:47:53,458 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 13:47:53,460 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 13:47:53,461 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 13:47:53,461 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 13:47:53,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 13:47:53,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:47:53" (1/1) ... [2019-12-27 13:47:53,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c4a233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:53, skipping insertion in model container [2019-12-27 13:47:53,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 01:47:53" (1/1) ... [2019-12-27 13:47:53,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 13:47:53,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 13:47:53,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:47:53,962 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 13:47:54,029 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 13:47:54,110 INFO L208 MainTranslator]: Completed translation [2019-12-27 13:47:54,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54 WrapperNode [2019-12-27 13:47:54,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 13:47:54,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 13:47:54,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 13:47:54,112 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 13:47:54,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 13:47:54,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 13:47:54,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 13:47:54,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 13:47:54,172 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,172 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (1/1) ... [2019-12-27 13:47:54,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 13:47:54,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 13:47:54,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 13:47:54,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 13:47:54,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (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 13:47:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 13:47:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 13:47:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 13:47:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 13:47:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 13:47:54,270 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 13:47:54,270 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 13:47:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 13:47:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 13:47:54,271 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 13:47:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 13:47:54,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 13:47:54,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 13:47:54,273 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 13:47:54,634 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 13:47:54,634 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 13:47:54,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:47:54 BoogieIcfgContainer [2019-12-27 13:47:54,636 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 13:47:54,637 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 13:47:54,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 13:47:54,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 13:47:54,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 01:47:53" (1/3) ... [2019-12-27 13:47:54,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30594917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:47:54, skipping insertion in model container [2019-12-27 13:47:54,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 01:47:54" (2/3) ... [2019-12-27 13:47:54,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30594917 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 01:47:54, skipping insertion in model container [2019-12-27 13:47:54,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 01:47:54" (3/3) ... [2019-12-27 13:47:54,647 INFO L109 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2019-12-27 13:47:54,656 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 13:47:54,656 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 13:47:54,665 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 13:47:54,666 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 13:47:54,697 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,698 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,698 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,699 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,699 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,699 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,700 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,700 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,700 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,701 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,701 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,701 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,702 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,702 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,702 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,702 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,703 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,703 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,707 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,707 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,708 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,708 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,714 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,714 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,715 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,715 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,719 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,719 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,720 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,720 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 13:47:54,743 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 13:47:54,760 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 13:47:54,760 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 13:47:54,760 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 13:47:54,760 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 13:47:54,760 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 13:47:54,760 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 13:47:54,761 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 13:47:54,761 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 13:47:54,773 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-27 13:47:54,858 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-27 13:47:54,860 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-27 13:47:54,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 13:47:54,877 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:47:54,878 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:47:54,879 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:47:54,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:47:54,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1150370491, now seen corresponding path program 1 times [2019-12-27 13:47:54,896 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:47:54,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785561191] [2019-12-27 13:47:54,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:47:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:47:55,332 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 13:47:55,333 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785561191] [2019-12-27 13:47:55,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:47:55,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 13:47:55,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117592823] [2019-12-27 13:47:55,340 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 13:47:55,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:47:55,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 13:47:55,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 13:47:55,359 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-27 13:47:55,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:47:55,472 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-27 13:47:55,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 13:47:55,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-27 13:47:55,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:47:55,502 INFO L225 Difference]: With dead ends: 1295 [2019-12-27 13:47:55,503 INFO L226 Difference]: Without dead ends: 601 [2019-12-27 13:47:55,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 13:47:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-27 13:47:55,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-27 13:47:55,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-27 13:47:55,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-27 13:47:55,636 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-27 13:47:55,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:47:55,637 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-27 13:47:55,637 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 13:47:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-27 13:47:55,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 13:47:55,641 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:47:55,641 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:47:55,642 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:47:55,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:47:55,642 INFO L82 PathProgramCache]: Analyzing trace with hash 960361128, now seen corresponding path program 1 times [2019-12-27 13:47:55,642 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:47:55,643 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130041704] [2019-12-27 13:47:55,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:47:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:47:55,781 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 13:47:55,781 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130041704] [2019-12-27 13:47:55,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:47:55,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 13:47:55,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271491221] [2019-12-27 13:47:55,785 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 13:47:55,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:47:55,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 13:47:55,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 13:47:55,786 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-27 13:47:55,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:47:55,867 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-27 13:47:55,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 13:47:55,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-27 13:47:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:47:55,873 INFO L225 Difference]: With dead ends: 601 [2019-12-27 13:47:55,874 INFO L226 Difference]: Without dead ends: 538 [2019-12-27 13:47:55,875 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:47:55,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-27 13:47:55,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-27 13:47:55,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-27 13:47:55,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-27 13:47:55,910 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-27 13:47:55,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:47:55,911 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-27 13:47:55,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 13:47:55,911 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-27 13:47:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 13:47:55,916 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:47:55,916 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:47:55,916 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:47:55,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:47:55,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1678383824, now seen corresponding path program 1 times [2019-12-27 13:47:55,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:47:55,917 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898352796] [2019-12-27 13:47:55,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:47:55,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:47:56,075 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 13:47:56,075 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898352796] [2019-12-27 13:47:56,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:47:56,076 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 13:47:56,076 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642705905] [2019-12-27 13:47:56,076 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 13:47:56,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:47:56,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 13:47:56,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 13:47:56,080 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-27 13:47:56,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:47:56,187 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-27 13:47:56,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:47:56,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 13:47:56,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:47:56,191 INFO L225 Difference]: With dead ends: 403 [2019-12-27 13:47:56,191 INFO L226 Difference]: Without dead ends: 349 [2019-12-27 13:47:56,192 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 13:47:56,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-27 13:47:56,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-27 13:47:56,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-27 13:47:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-27 13:47:56,214 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-27 13:47:56,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:47:56,214 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-27 13:47:56,214 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 13:47:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-27 13:47:56,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:47:56,219 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:47:56,219 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:47:56,220 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:47:56,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:47:56,220 INFO L82 PathProgramCache]: Analyzing trace with hash 552941166, now seen corresponding path program 1 times [2019-12-27 13:47:56,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:47:56,221 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757207050] [2019-12-27 13:47:56,221 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:47:56,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:47:56,425 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 13:47:56,425 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757207050] [2019-12-27 13:47:56,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:47:56,426 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 13:47:56,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48607556] [2019-12-27 13:47:56,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 13:47:56,427 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:47:56,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 13:47:56,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 13:47:56,427 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-27 13:47:56,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:47:56,546 INFO L93 Difference]: Finished difference Result 556 states and 1479 transitions. [2019-12-27 13:47:56,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 13:47:56,547 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 13:47:56,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:47:56,550 INFO L225 Difference]: With dead ends: 556 [2019-12-27 13:47:56,550 INFO L226 Difference]: Without dead ends: 325 [2019-12-27 13:47:56,551 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 13:47:56,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2019-12-27 13:47:56,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2019-12-27 13:47:56,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-27 13:47:56,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-27 13:47:56,564 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-27 13:47:56,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:47:56,565 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-27 13:47:56,565 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 13:47:56,565 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-27 13:47:56,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 13:47:56,567 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 13:47:56,567 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 13:47:56,567 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 13:47:56,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 13:47:56,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1740039834, now seen corresponding path program 2 times [2019-12-27 13:47:56,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 13:47:56,568 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470915264] [2019-12-27 13:47:56,568 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 13:47:56,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 13:47:56,717 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 13:47:56,717 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470915264] [2019-12-27 13:47:56,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 13:47:56,718 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 13:47:56,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950679035] [2019-12-27 13:47:56,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 13:47:56,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 13:47:56,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 13:47:56,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-27 13:47:56,720 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-27 13:47:56,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 13:47:56,963 INFO L93 Difference]: Finished difference Result 433 states and 1143 transitions. [2019-12-27 13:47:56,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-27 13:47:56,965 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 13:47:56,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 13:47:56,966 INFO L225 Difference]: With dead ends: 433 [2019-12-27 13:47:56,966 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 13:47:56,966 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-27 13:47:56,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 13:47:56,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 13:47:56,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 13:47:56,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 13:47:56,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-27 13:47:56,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 13:47:56,970 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 13:47:56,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 13:47:56,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 13:47:56,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 13:47:56,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 01:47:56 BasicIcfg [2019-12-27 13:47:56,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 13:47:56,987 INFO L168 Benchmark]: Toolchain (without parser) took 3525.02 ms. Allocated memory was 143.7 MB in the beginning and 255.9 MB in the end (delta: 112.2 MB). Free memory was 99.9 MB in the beginning and 205.3 MB in the end (delta: -105.3 MB). Peak memory consumption was 6.8 MB. Max. memory is 7.1 GB. [2019-12-27 13:47:56,989 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 13:47:56,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 650.79 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 157.4 MB in the end (delta: -57.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-12-27 13:47:56,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.42 ms. Allocated memory is still 200.8 MB. Free memory was 157.4 MB in the beginning and 155.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 13:47:57,004 INFO L168 Benchmark]: Boogie Preprocessor took 28.45 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 13:47:57,006 INFO L168 Benchmark]: RCFGBuilder took 445.66 ms. Allocated memory is still 200.8 MB. Free memory was 154.0 MB in the beginning and 133.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. [2019-12-27 13:47:57,007 INFO L168 Benchmark]: TraceAbstraction took 2344.96 ms. Allocated memory was 200.8 MB in the beginning and 255.9 MB in the end (delta: 55.1 MB). Free memory was 133.4 MB in the beginning and 205.3 MB in the end (delta: -71.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 13:47:57,012 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 143.7 MB. Free memory was 120.0 MB in the beginning and 119.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 650.79 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 99.5 MB in the beginning and 157.4 MB in the end (delta: -57.9 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.42 ms. Allocated memory is still 200.8 MB. Free memory was 157.4 MB in the beginning and 155.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.45 ms. Allocated memory is still 200.8 MB. Free memory was 155.4 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 445.66 ms. Allocated memory is still 200.8 MB. Free memory was 154.0 MB in the beginning and 133.4 MB in the end (delta: 20.6 MB). Peak memory consumption was 20.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2344.96 ms. Allocated memory was 200.8 MB in the beginning and 255.9 MB in the end (delta: 55.1 MB). Free memory was 133.4 MB in the beginning and 205.3 MB in the end (delta: -71.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 243 SDtfs, 355 SDslu, 644 SDs, 0 SdLazy, 87 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 14973 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...