/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 05:19:28,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 05:19:28,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 05:19:28,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 05:19:28,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 05:19:28,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 05:19:28,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 05:19:28,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 05:19:28,157 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 05:19:28,161 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 05:19:28,164 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 05:19:28,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 05:19:28,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 05:19:28,168 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 05:19:28,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 05:19:28,172 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 05:19:28,174 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 05:19:28,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 05:19:28,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 05:19:28,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 05:19:28,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 05:19:28,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 05:19:28,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 05:19:28,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 05:19:28,195 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 05:19:28,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 05:19:28,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 05:19:28,197 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 05:19:28,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 05:19:28,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 05:19:28,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 05:19:28,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 05:19:28,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 05:19:28,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 05:19:28,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 05:19:28,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 05:19:28,206 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 05:19:28,207 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 05:19:28,207 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 05:19:28,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 05:19:28,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 05:19:28,210 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-MCR.epf [2019-12-28 05:19:28,238 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 05:19:28,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 05:19:28,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 05:19:28,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 05:19:28,245 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 05:19:28,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 05:19:28,245 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 05:19:28,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 05:19:28,246 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 05:19:28,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 05:19:28,246 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 05:19:28,246 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 05:19:28,246 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 05:19:28,247 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 05:19:28,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 05:19:28,247 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 05:19:28,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 05:19:28,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 05:19:28,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 05:19:28,248 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 05:19:28,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 05:19:28,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:19:28,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 05:19:28,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 05:19:28,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 05:19:28,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 05:19:28,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 05:19:28,251 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 05:19:28,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 05:19:28,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 05:19:28,251 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 05:19:28,251 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 05:19:28,525 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 05:19:28,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 05:19:28,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 05:19:28,555 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 05:19:28,555 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 05:19:28,556 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2019-12-28 05:19:28,640 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60b3f7d92/7fb6f51176e4418eb3a0950571589326/FLAGd0d1c564d [2019-12-28 05:19:29,177 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 05:19:29,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe030_tso.oepc.i [2019-12-28 05:19:29,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60b3f7d92/7fb6f51176e4418eb3a0950571589326/FLAGd0d1c564d [2019-12-28 05:19:29,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60b3f7d92/7fb6f51176e4418eb3a0950571589326 [2019-12-28 05:19:29,471 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 05:19:29,473 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 05:19:29,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 05:19:29,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 05:19:29,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 05:19:29,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:19:29" (1/1) ... [2019-12-28 05:19:29,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@300ecf2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:29, skipping insertion in model container [2019-12-28 05:19:29,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:19:29" (1/1) ... [2019-12-28 05:19:29,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 05:19:29,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 05:19:29,985 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:19:29,997 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 05:19:30,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 05:19:30,133 INFO L208 MainTranslator]: Completed translation [2019-12-28 05:19:30,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30 WrapperNode [2019-12-28 05:19:30,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 05:19:30,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 05:19:30,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 05:19:30,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 05:19:30,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,187 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 05:19:30,187 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 05:19:30,187 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 05:19:30,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 05:19:30,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... [2019-12-28 05:19:30,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 05:19:30,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 05:19:30,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 05:19:30,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 05:19:30,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 05:19:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 05:19:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 05:19:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 05:19:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 05:19:30,275 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 05:19:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 05:19:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 05:19:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 05:19:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 05:19:30,276 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 05:19:30,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 05:19:30,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 05:19:30,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 05:19:30,279 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 05:19:30,680 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 05:19:30,681 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 05:19:30,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:19:30 BoogieIcfgContainer [2019-12-28 05:19:30,683 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 05:19:30,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 05:19:30,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 05:19:30,687 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 05:19:30,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:19:29" (1/3) ... [2019-12-28 05:19:30,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bc4a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:19:30, skipping insertion in model container [2019-12-28 05:19:30,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:19:30" (2/3) ... [2019-12-28 05:19:30,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68bc4a9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:19:30, skipping insertion in model container [2019-12-28 05:19:30,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:19:30" (3/3) ... [2019-12-28 05:19:30,691 INFO L109 eAbstractionObserver]: Analyzing ICFG safe030_tso.oepc.i [2019-12-28 05:19:30,700 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 05:19:30,701 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 05:19:30,708 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 05:19:30,710 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 05:19:30,739 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,739 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,740 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,740 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,741 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,741 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,741 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,742 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,742 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,742 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,743 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,743 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,743 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,744 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,744 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,744 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,744 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,745 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,749 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,750 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,750 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,750 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,764 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,766 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,766 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,766 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,774 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,774 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,774 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,775 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 05:19:30,790 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 05:19:30,813 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 05:19:30,814 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 05:19:30,814 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 05:19:30,815 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 05:19:30,815 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 05:19:30,815 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 05:19:30,816 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 05:19:30,816 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 05:19:30,827 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 52 transitions [2019-12-28 05:19:30,913 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-12-28 05:19:30,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-12-28 05:19:30,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 05:19:30,932 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:19:30,933 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] [2019-12-28 05:19:30,934 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:19:30,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:19:30,940 INFO L82 PathProgramCache]: Analyzing trace with hash 2035316292, now seen corresponding path program 1 times [2019-12-28 05:19:30,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:19:30,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520454605] [2019-12-28 05:19:30,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:19:31,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:19:31,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:19:31,334 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520454605] [2019-12-28 05:19:31,335 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:19:31,335 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 05:19:31,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1753600244] [2019-12-28 05:19:31,337 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:19:31,346 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:19:31,368 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 05:19:31,369 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:19:31,373 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:19:31,374 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 05:19:31,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:19:31,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 05:19:31,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 05:19:31,391 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-12-28 05:19:31,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:19:31,520 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-12-28 05:19:31,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 05:19:31,523 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-28 05:19:31,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:19:31,561 INFO L225 Difference]: With dead ends: 1293 [2019-12-28 05:19:31,561 INFO L226 Difference]: Without dead ends: 599 [2019-12-28 05:19:31,566 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:19:31,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-12-28 05:19:31,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-12-28 05:19:31,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-12-28 05:19:31,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-12-28 05:19:31,666 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-12-28 05:19:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:19:31,667 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-12-28 05:19:31,667 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 05:19:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-12-28 05:19:31,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-28 05:19:31,671 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:19:31,671 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] [2019-12-28 05:19:31,672 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:19:31,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:19:31,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1126124902, now seen corresponding path program 1 times [2019-12-28 05:19:31,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:19:31,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848589409] [2019-12-28 05:19:31,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:19:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:19:31,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:19:31,841 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848589409] [2019-12-28 05:19:31,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:19:31,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 05:19:31,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [39248082] [2019-12-28 05:19:31,842 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:19:31,846 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:19:31,850 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 46 transitions. [2019-12-28 05:19:31,851 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:19:31,852 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:19:31,853 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 05:19:31,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:19:31,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 05:19:31,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 05:19:31,855 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 5 states. [2019-12-28 05:19:31,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:19:31,957 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-12-28 05:19:31,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:19:31,958 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-12-28 05:19:31,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:19:31,963 INFO L225 Difference]: With dead ends: 599 [2019-12-28 05:19:31,964 INFO L226 Difference]: Without dead ends: 536 [2019-12-28 05:19:31,965 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 [2019-12-28 05:19:31,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-12-28 05:19:32,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-12-28 05:19:32,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-12-28 05:19:32,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-12-28 05:19:32,017 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-12-28 05:19:32,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:19:32,017 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-12-28 05:19:32,017 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 05:19:32,017 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-12-28 05:19:32,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 05:19:32,020 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:19:32,020 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] [2019-12-28 05:19:32,020 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:19:32,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:19:32,021 INFO L82 PathProgramCache]: Analyzing trace with hash -821434468, now seen corresponding path program 1 times [2019-12-28 05:19:32,021 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:19:32,021 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121852738] [2019-12-28 05:19:32,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:19:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:19:32,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:19:32,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121852738] [2019-12-28 05:19:32,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:19:32,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:19:32,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [285514429] [2019-12-28 05:19:32,220 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:19:32,223 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:19:32,229 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 40 states and 47 transitions. [2019-12-28 05:19:32,229 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:19:32,229 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:19:32,230 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:19:32,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:19:32,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:19:32,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:19:32,231 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 6 states. [2019-12-28 05:19:32,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:19:32,335 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-12-28 05:19:32,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 05:19:32,340 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2019-12-28 05:19:32,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:19:32,343 INFO L225 Difference]: With dead ends: 401 [2019-12-28 05:19:32,343 INFO L226 Difference]: Without dead ends: 347 [2019-12-28 05:19:32,343 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:19:32,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-12-28 05:19:32,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-12-28 05:19:32,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-12-28 05:19:32,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-12-28 05:19:32,360 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-12-28 05:19:32,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:19:32,361 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-12-28 05:19:32,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:19:32,361 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-12-28 05:19:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 05:19:32,365 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 05:19:32,365 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] [2019-12-28 05:19:32,365 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 05:19:32,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 05:19:32,366 INFO L82 PathProgramCache]: Analyzing trace with hash -1999696503, now seen corresponding path program 1 times [2019-12-28 05:19:32,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 05:19:32,367 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688578204] [2019-12-28 05:19:32,367 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 05:19:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 05:19:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 05:19:32,572 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688578204] [2019-12-28 05:19:32,573 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 05:19:32,573 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 05:19:32,574 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1678673611] [2019-12-28 05:19:32,574 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 05:19:32,579 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 05:19:32,587 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 48 transitions. [2019-12-28 05:19:32,587 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 05:19:32,588 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 05:19:32,588 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 05:19:32,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 05:19:32,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 05:19:32,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-28 05:19:32,589 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 6 states. [2019-12-28 05:19:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 05:19:32,702 INFO L93 Difference]: Finished difference Result 293 states and 751 transitions. [2019-12-28 05:19:32,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 05:19:32,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-28 05:19:32,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 05:19:32,703 INFO L225 Difference]: With dead ends: 293 [2019-12-28 05:19:32,704 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 05:19:32,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-28 05:19:32,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 05:19:32,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 05:19:32,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 05:19:32,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 05:19:32,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-12-28 05:19:32,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 05:19:32,706 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 05:19:32,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 05:19:32,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 05:19:32,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 05:19:32,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 05:19:32 BasicIcfg [2019-12-28 05:19:32,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 05:19:32,715 INFO L168 Benchmark]: Toolchain (without parser) took 3241.03 ms. Allocated memory was 142.6 MB in the beginning and 234.4 MB in the end (delta: 91.8 MB). Free memory was 103.2 MB in the beginning and 83.2 MB in the end (delta: 20.0 MB). Peak memory consumption was 111.7 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:32,716 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 142.6 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-28 05:19:32,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.74 ms. Allocated memory was 142.6 MB in the beginning and 205.0 MB in the end (delta: 62.4 MB). Free memory was 102.8 MB in the beginning and 162.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:32,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.67 ms. Allocated memory is still 205.0 MB. Free memory was 162.4 MB in the beginning and 160.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:32,719 INFO L168 Benchmark]: Boogie Preprocessor took 28.51 ms. Allocated memory is still 205.0 MB. Free memory was 160.2 MB in the beginning and 158.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:32,720 INFO L168 Benchmark]: RCFGBuilder took 466.64 ms. Allocated memory is still 205.0 MB. Free memory was 158.3 MB in the beginning and 138.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:32,721 INFO L168 Benchmark]: TraceAbstraction took 2028.15 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 138.4 MB in the beginning and 83.2 MB in the end (delta: 55.2 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2019-12-28 05:19:32,725 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 142.6 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 659.74 ms. Allocated memory was 142.6 MB in the beginning and 205.0 MB in the end (delta: 62.4 MB). Free memory was 102.8 MB in the beginning and 162.4 MB in the end (delta: -59.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.67 ms. Allocated memory is still 205.0 MB. Free memory was 162.4 MB in the beginning and 160.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.51 ms. Allocated memory is still 205.0 MB. Free memory was 160.2 MB in the beginning and 158.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.64 ms. Allocated memory is still 205.0 MB. Free memory was 158.3 MB in the beginning and 138.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2028.15 ms. Allocated memory was 205.0 MB in the beginning and 234.4 MB in the end (delta: 29.4 MB). Free memory was 138.4 MB in the beginning and 83.2 MB in the end (delta: 55.2 MB). Peak memory consumption was 84.6 MB. 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, 52 locations, 1 error locations. Result: SAFE, OverallTime: 1.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 163 SDtfs, 228 SDslu, 294 SDs, 0 SdLazy, 49 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 9576 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...