/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:13:39,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:13:39,176 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:13:39,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:13:39,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:13:39,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:13:39,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:13:39,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:13:39,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:13:39,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:13:39,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:13:39,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:13:39,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:13:39,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:13:39,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:13:39,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:13:39,214 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:13:39,215 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:13:39,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:13:39,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:13:39,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:13:39,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:13:39,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:13:39,224 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:13:39,226 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:13:39,227 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:13:39,227 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:13:39,228 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:13:39,228 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:13:39,229 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:13:39,230 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:13:39,230 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:13:39,231 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:13:39,232 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:13:39,233 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:13:39,233 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:13:39,234 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:13:39,234 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:13:39,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:13:39,236 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:13:39,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:13:39,237 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 02:13:39,261 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:13:39,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:13:39,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:13:39,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:13:39,263 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:13:39,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:13:39,263 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:13:39,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:13:39,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:13:39,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:13:39,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:13:39,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:13:39,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:13:39,264 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:13:39,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:13:39,265 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:13:39,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:13:39,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:13:39,265 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:13:39,265 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:13:39,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:13:39,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:13:39,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:13:39,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:13:39,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:13:39,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:13:39,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:13:39,267 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:13:39,267 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:13:39,267 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:13:39,268 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:13:39,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:13:39,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:13:39,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:13:39,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:13:39,661 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:13:39,663 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-22 02:13:39,748 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200e21130/a41cd33f6eb34e90b6ba21082995e3f8/FLAGd57c9d640 [2020-10-22 02:13:40,308 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:13:40,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_pso.opt.i [2020-10-22 02:13:40,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200e21130/a41cd33f6eb34e90b6ba21082995e3f8/FLAGd57c9d640 [2020-10-22 02:13:40,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/200e21130/a41cd33f6eb34e90b6ba21082995e3f8 [2020-10-22 02:13:40,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:13:40,593 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:13:40,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:13:40,596 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:13:40,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:13:40,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:13:40" (1/1) ... [2020-10-22 02:13:40,606 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6d4935 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:40, skipping insertion in model container [2020-10-22 02:13:40,606 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:13:40" (1/1) ... [2020-10-22 02:13:40,616 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:13:40,666 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:13:41,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:13:41,133 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:13:41,180 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:13:41,266 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:13:41,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41 WrapperNode [2020-10-22 02:13:41,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:13:41,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:13:41,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:13:41,268 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:13:41,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:13:41,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:13:41,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:13:41,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:13:41,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... [2020-10-22 02:13:41,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:13:41,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:13:41,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:13:41,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:13:41,349 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:13:41,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:13:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:13:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:13:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:13:41,422 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:13:41,422 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:13:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:13:41,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:13:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:13:41,423 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:13:41,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:13:41,424 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:13:41,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:13:41,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:13:41,426 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 02:13:41,797 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:13:41,797 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:13:41,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:13:41 BoogieIcfgContainer [2020-10-22 02:13:41,803 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:13:41,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:13:41,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:13:41,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:13:41,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:13:40" (1/3) ... [2020-10-22 02:13:41,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f36b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:13:41, skipping insertion in model container [2020-10-22 02:13:41,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:13:41" (2/3) ... [2020-10-22 02:13:41,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30f36b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:13:41, skipping insertion in model container [2020-10-22 02:13:41,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:13:41" (3/3) ... [2020-10-22 02:13:41,814 INFO L111 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt.i [2020-10-22 02:13:41,826 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:13:41,827 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:13:41,836 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:13:41,837 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:13:41,901 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,902 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,902 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,903 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,904 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,905 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,905 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,906 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,910 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,911 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,917 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,917 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,918 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,920 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,921 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:13:41,923 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:13:41,937 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 02:13:41,957 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:13:41,957 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:13:41,958 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:13:41,958 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:13:41,958 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:13:41,958 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:13:41,958 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:13:41,958 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:13:41,971 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:13:41,971 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-22 02:13:41,973 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 84 places, 77 transitions, 169 flow [2020-10-22 02:13:41,975 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 77 transitions, 169 flow [2020-10-22 02:13:42,024 INFO L129 PetriNetUnfolder]: 3/74 cut-off events. [2020-10-22 02:13:42,024 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:13:42,030 INFO L80 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 74 events. 3/74 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 60 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-22 02:13:42,033 INFO L116 LiptonReduction]: Number of co-enabled transitions 1356 [2020-10-22 02:13:43,581 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2020-10-22 02:13:43,694 INFO L131 LiptonReduction]: Checked pairs total: 2462 [2020-10-22 02:13:43,694 INFO L133 LiptonReduction]: Total number of compositions: 70 [2020-10-22 02:13:43,706 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-10-22 02:13:43,751 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 282 states. [2020-10-22 02:13:43,753 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states. [2020-10-22 02:13:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-22 02:13:43,782 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:13:43,783 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:13:43,783 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:13:43,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:13:43,789 INFO L82 PathProgramCache]: Analyzing trace with hash 982566713, now seen corresponding path program 1 times [2020-10-22 02:13:43,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:13:43,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645902781] [2020-10-22 02:13:43,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:13:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:13:44,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:13:44,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645902781] [2020-10-22 02:13:44,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:13:44,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:13:44,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1974424645] [2020-10-22 02:13:44,026 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:13:44,029 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:13:44,043 INFO L252 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-22 02:13:44,043 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:13:44,048 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:13:44,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 02:13:44,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:13:44,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 02:13:44,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:13:44,066 INFO L87 Difference]: Start difference. First operand 282 states. Second operand 2 states. [2020-10-22 02:13:44,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:13:44,087 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-10-22 02:13:44,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 02:13:44,089 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-10-22 02:13:44,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:13:44,104 INFO L225 Difference]: With dead ends: 282 [2020-10-22 02:13:44,104 INFO L226 Difference]: Without dead ends: 234 [2020-10-22 02:13:44,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 02:13:44,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-10-22 02:13:44,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2020-10-22 02:13:44,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-22 02:13:44,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 656 transitions. [2020-10-22 02:13:44,180 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 656 transitions. Word has length 8 [2020-10-22 02:13:44,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:13:44,181 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 656 transitions. [2020-10-22 02:13:44,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 02:13:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 656 transitions. [2020-10-22 02:13:44,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 02:13:44,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:13:44,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:13:44,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:13:44,184 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:13:44,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:13:44,184 INFO L82 PathProgramCache]: Analyzing trace with hash 394788315, now seen corresponding path program 1 times [2020-10-22 02:13:44,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:13:44,188 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228989532] [2020-10-22 02:13:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:13:44,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:13:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:13:44,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228989532] [2020-10-22 02:13:44,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:13:44,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:13:44,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1078203721] [2020-10-22 02:13:44,280 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:13:44,280 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:13:44,282 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 02:13:44,282 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:13:44,283 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:13:44,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:13:44,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:13:44,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:13:44,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:13:44,285 INFO L87 Difference]: Start difference. First operand 234 states and 656 transitions. Second operand 3 states. [2020-10-22 02:13:44,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:13:44,304 INFO L93 Difference]: Finished difference Result 180 states and 440 transitions. [2020-10-22 02:13:44,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:13:44,304 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-22 02:13:44,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:13:44,306 INFO L225 Difference]: With dead ends: 180 [2020-10-22 02:13:44,307 INFO L226 Difference]: Without dead ends: 180 [2020-10-22 02:13:44,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:13:44,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-22 02:13:44,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2020-10-22 02:13:44,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-10-22 02:13:44,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 440 transitions. [2020-10-22 02:13:44,324 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 440 transitions. Word has length 9 [2020-10-22 02:13:44,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:13:44,324 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 440 transitions. [2020-10-22 02:13:44,324 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:13:44,324 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 440 transitions. [2020-10-22 02:13:44,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:13:44,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:13:44,326 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:13:44,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:13:44,327 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:13:44,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:13:44,327 INFO L82 PathProgramCache]: Analyzing trace with hash 1410976981, now seen corresponding path program 1 times [2020-10-22 02:13:44,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:13:44,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151057160] [2020-10-22 02:13:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:13:44,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:13:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:13:44,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151057160] [2020-10-22 02:13:44,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:13:44,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:13:44,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1827960993] [2020-10-22 02:13:44,397 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:13:44,398 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:13:44,400 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-22 02:13:44,400 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:13:44,401 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:13:44,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:13:44,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:13:44,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:13:44,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:13:44,402 INFO L87 Difference]: Start difference. First operand 180 states and 440 transitions. Second operand 4 states. [2020-10-22 02:13:44,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:13:44,471 INFO L93 Difference]: Finished difference Result 117 states and 251 transitions. [2020-10-22 02:13:44,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:13:44,472 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 02:13:44,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:13:44,475 INFO L225 Difference]: With dead ends: 117 [2020-10-22 02:13:44,476 INFO L226 Difference]: Without dead ends: 117 [2020-10-22 02:13:44,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:13:44,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2020-10-22 02:13:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2020-10-22 02:13:44,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-10-22 02:13:44,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 251 transitions. [2020-10-22 02:13:44,496 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 251 transitions. Word has length 11 [2020-10-22 02:13:44,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:13:44,496 INFO L481 AbstractCegarLoop]: Abstraction has 117 states and 251 transitions. [2020-10-22 02:13:44,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:13:44,497 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 251 transitions. [2020-10-22 02:13:44,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:13:44,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:13:44,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:13:44,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:13:44,503 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:13:44,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:13:44,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1834300814, now seen corresponding path program 1 times [2020-10-22 02:13:44,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:13:44,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885651199] [2020-10-22 02:13:44,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:13:44,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:13:44,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:13:44,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885651199] [2020-10-22 02:13:44,632 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:13:44,632 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:13:44,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1144409570] [2020-10-22 02:13:44,632 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:13:44,634 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:13:44,637 INFO L252 McrAutomatonBuilder]: Finished intersection with 29 states and 42 transitions. [2020-10-22 02:13:44,638 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:13:44,848 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:13:44,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:13:44,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:13:44,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:13:44,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:13:44,850 INFO L87 Difference]: Start difference. First operand 117 states and 251 transitions. Second operand 5 states. [2020-10-22 02:13:44,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:13:44,889 INFO L93 Difference]: Finished difference Result 93 states and 203 transitions. [2020-10-22 02:13:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:13:44,890 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:13:44,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:13:44,891 INFO L225 Difference]: With dead ends: 93 [2020-10-22 02:13:44,891 INFO L226 Difference]: Without dead ends: 93 [2020-10-22 02:13:44,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:13:44,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-22 02:13:44,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-22 02:13:44,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-22 02:13:44,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 203 transitions. [2020-10-22 02:13:44,899 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 203 transitions. Word has length 14 [2020-10-22 02:13:44,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:13:44,900 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 203 transitions. [2020-10-22 02:13:44,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:13:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 203 transitions. [2020-10-22 02:13:44,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:13:44,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:13:44,907 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:13:44,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:13:44,908 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:13:44,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:13:44,908 INFO L82 PathProgramCache]: Analyzing trace with hash -1160615665, now seen corresponding path program 1 times [2020-10-22 02:13:44,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:13:44,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546131273] [2020-10-22 02:13:44,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:13:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:13:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:13:45,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546131273] [2020-10-22 02:13:45,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:13:45,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:13:45,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [376479789] [2020-10-22 02:13:45,071 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:13:45,073 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:13:45,081 INFO L252 McrAutomatonBuilder]: Finished intersection with 48 states and 81 transitions. [2020-10-22 02:13:45,082 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:13:45,417 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:13:45,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:13:45,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:13:45,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:13:45,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:13:45,418 INFO L87 Difference]: Start difference. First operand 93 states and 203 transitions. Second operand 5 states. [2020-10-22 02:13:45,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:13:45,448 INFO L93 Difference]: Finished difference Result 137 states and 290 transitions. [2020-10-22 02:13:45,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:13:45,448 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-22 02:13:45,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:13:45,449 INFO L225 Difference]: With dead ends: 137 [2020-10-22 02:13:45,449 INFO L226 Difference]: Without dead ends: 69 [2020-10-22 02:13:45,450 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:13:45,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-22 02:13:45,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-22 02:13:45,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-22 02:13:45,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 137 transitions. [2020-10-22 02:13:45,454 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 137 transitions. Word has length 17 [2020-10-22 02:13:45,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:13:45,455 INFO L481 AbstractCegarLoop]: Abstraction has 69 states and 137 transitions. [2020-10-22 02:13:45,455 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:13:45,455 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 137 transitions. [2020-10-22 02:13:45,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:13:45,456 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:13:45,456 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:13:45,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:13:45,456 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:13:45,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:13:45,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1623757075, now seen corresponding path program 2 times [2020-10-22 02:13:45,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:13:45,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046198503] [2020-10-22 02:13:45,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:13:45,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:13:45,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:13:45,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046198503] [2020-10-22 02:13:45,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:13:45,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:13:45,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1290087822] [2020-10-22 02:13:45,533 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:13:45,535 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:13:45,540 INFO L252 McrAutomatonBuilder]: Finished intersection with 28 states and 36 transitions. [2020-10-22 02:13:45,540 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:13:45,571 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:13:45,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:13:45,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:13:45,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:13:45,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:13:45,573 INFO L87 Difference]: Start difference. First operand 69 states and 137 transitions. Second operand 4 states. [2020-10-22 02:13:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:13:45,597 INFO L93 Difference]: Finished difference Result 87 states and 167 transitions. [2020-10-22 02:13:45,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:13:45,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-22 02:13:45,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:13:45,599 INFO L225 Difference]: With dead ends: 87 [2020-10-22 02:13:45,599 INFO L226 Difference]: Without dead ends: 53 [2020-10-22 02:13:45,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:13:45,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-22 02:13:45,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-22 02:13:45,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-22 02:13:45,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 99 transitions. [2020-10-22 02:13:45,604 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 99 transitions. Word has length 17 [2020-10-22 02:13:45,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:13:45,605 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 99 transitions. [2020-10-22 02:13:45,605 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:13:45,605 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 99 transitions. [2020-10-22 02:13:45,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:13:45,607 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:13:45,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:13:45,607 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:13:45,608 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:13:45,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:13:45,608 INFO L82 PathProgramCache]: Analyzing trace with hash 477726785, now seen corresponding path program 3 times [2020-10-22 02:13:45,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:13:45,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709194400] [2020-10-22 02:13:45,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:13:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:13:45,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:13:45,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709194400] [2020-10-22 02:13:45,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:13:45,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:13:45,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [944324795] [2020-10-22 02:13:45,703 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:13:45,704 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:13:45,711 INFO L252 McrAutomatonBuilder]: Finished intersection with 42 states and 69 transitions. [2020-10-22 02:13:45,711 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:13:45,949 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:13:45,950 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:13:45,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:13:45,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:13:45,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:13:45,951 INFO L87 Difference]: Start difference. First operand 53 states and 99 transitions. Second operand 5 states. [2020-10-22 02:13:46,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:13:46,001 INFO L93 Difference]: Finished difference Result 67 states and 121 transitions. [2020-10-22 02:13:46,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 02:13:46,001 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-22 02:13:46,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:13:46,002 INFO L225 Difference]: With dead ends: 67 [2020-10-22 02:13:46,002 INFO L226 Difference]: Without dead ends: 35 [2020-10-22 02:13:46,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:13:46,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-22 02:13:46,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-22 02:13:46,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-22 02:13:46,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 54 transitions. [2020-10-22 02:13:46,006 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 54 transitions. Word has length 17 [2020-10-22 02:13:46,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:13:46,006 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 54 transitions. [2020-10-22 02:13:46,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:13:46,006 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 54 transitions. [2020-10-22 02:13:46,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-22 02:13:46,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:13:46,007 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:13:46,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:13:46,007 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:13:46,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:13:46,008 INFO L82 PathProgramCache]: Analyzing trace with hash -152781209, now seen corresponding path program 4 times [2020-10-22 02:13:46,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:13:46,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077736283] [2020-10-22 02:13:46,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:13:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:13:46,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 02:13:46,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077736283] [2020-10-22 02:13:46,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:13:46,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:13:46,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1893435046] [2020-10-22 02:13:46,084 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:13:46,086 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:13:46,093 INFO L252 McrAutomatonBuilder]: Finished intersection with 32 states and 42 transitions. [2020-10-22 02:13:46,094 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:13:46,179 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:13:46,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:13:46,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:13:46,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:13:46,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:13:46,180 INFO L87 Difference]: Start difference. First operand 35 states and 54 transitions. Second operand 5 states. [2020-10-22 02:13:46,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:13:46,203 INFO L93 Difference]: Finished difference Result 34 states and 53 transitions. [2020-10-22 02:13:46,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 02:13:46,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-22 02:13:46,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:13:46,204 INFO L225 Difference]: With dead ends: 34 [2020-10-22 02:13:46,204 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:13:46,204 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:13:46,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:13:46,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:13:46,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:13:46,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:13:46,205 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-22 02:13:46,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:13:46,206 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:13:46,206 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:13:46,206 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:13:46,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:13:46,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:13:46,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:13:46 BasicIcfg [2020-10-22 02:13:46,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:13:46,213 INFO L168 Benchmark]: Toolchain (without parser) took 5624.64 ms. Allocated memory was 145.8 MB in the beginning and 289.4 MB in the end (delta: 143.7 MB). Free memory was 100.8 MB in the beginning and 235.7 MB in the end (delta: -134.9 MB). Peak memory consumption was 8.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:13:46,214 INFO L168 Benchmark]: CDTParser took 2.50 ms. Allocated memory is still 145.8 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 02:13:46,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 672.18 ms. Allocated memory was 145.8 MB in the beginning and 200.8 MB in the end (delta: 55.1 MB). Free memory was 100.0 MB in the beginning and 154.7 MB in the end (delta: -54.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2020-10-22 02:13:46,216 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 152.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:13:46,216 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 ms. Allocated memory is still 200.8 MB. Free memory was 152.6 MB in the beginning and 151.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:13:46,217 INFO L168 Benchmark]: RCFGBuilder took 455.82 ms. Allocated memory is still 200.8 MB. Free memory was 150.6 MB in the beginning and 127.1 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:13:46,218 INFO L168 Benchmark]: TraceAbstraction took 4406.08 ms. Allocated memory was 200.8 MB in the beginning and 289.4 MB in the end (delta: 88.6 MB). Free memory was 126.5 MB in the beginning and 235.7 MB in the end (delta: -109.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-22 02:13:46,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.50 ms. Allocated memory is still 145.8 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 672.18 ms. Allocated memory was 145.8 MB in the beginning and 200.8 MB in the end (delta: 55.1 MB). Free memory was 100.0 MB in the beginning and 154.7 MB in the end (delta: -54.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.98 ms. Allocated memory is still 200.8 MB. Free memory was 154.7 MB in the beginning and 152.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.98 ms. Allocated memory is still 200.8 MB. Free memory was 152.6 MB in the beginning and 151.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 455.82 ms. Allocated memory is still 200.8 MB. Free memory was 150.6 MB in the beginning and 127.1 MB in the end (delta: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4406.08 ms. Allocated memory was 200.8 MB in the beginning and 289.4 MB in the end (delta: 88.6 MB). Free memory was 126.5 MB in the beginning and 235.7 MB in the end (delta: -109.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 707 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 47 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.7s, 84 PlacesBefore, 31 PlacesAfterwards, 77 TransitionsBefore, 22 TransitionsAfterwards, 1356 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 10 ConcurrentYvCompositions, 2 ChoiceCompositions, 70 TotalNumberOfCompositions, 2462 MoverChecksTotal - PositiveResult [Line: 17]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 130 SDtfs, 74 SDslu, 184 SDs, 0 SdLazy, 71 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 108 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=282occurred 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 3452 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...