/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/safe027_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 02:18:49,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 02:18:49,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 02:18:49,085 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 02:18:49,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 02:18:49,086 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 02:18:49,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 02:18:49,090 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 02:18:49,091 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 02:18:49,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 02:18:49,093 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 02:18:49,094 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 02:18:49,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 02:18:49,095 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 02:18:49,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 02:18:49,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 02:18:49,099 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 02:18:49,100 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 02:18:49,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 02:18:49,103 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 02:18:49,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 02:18:49,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 02:18:49,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 02:18:49,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 02:18:49,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-22 02:18:49,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-22 02:18:49,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-22 02:18:49,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-22 02:18:49,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-22 02:18:49,113 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-22 02:18:49,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 02:18:49,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 02:18:49,115 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 02:18:49,116 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 02:18:49,117 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 02:18:49,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 02:18:49,118 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 02:18:49,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 02:18:49,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 02:18:49,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 02:18:49,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 02:18:49,121 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 02:18:49,153 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 02:18:49,154 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 02:18:49,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 02:18:49,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 02:18:49,155 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 02:18:49,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 02:18:49,156 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 02:18:49,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 02:18:49,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 02:18:49,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 02:18:49,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 02:18:49,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 02:18:49,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 02:18:49,157 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 02:18:49,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 02:18:49,158 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 02:18:49,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 02:18:49,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 02:18:49,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 02:18:49,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 02:18:49,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 02:18:49,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 02:18:49,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 02:18:49,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 02:18:49,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 02:18:49,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 02:18:49,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 02:18:49,160 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 02:18:49,160 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 02:18:49,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 02:18:49,160 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 02:18:49,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 02:18:49,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 02:18:49,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 02:18:49,493 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 02:18:49,493 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 02:18:49,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-22 02:18:49,560 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5fdf8f56/68494f4e7f3a4ad98a44bb180942f4e6/FLAG469543486 [2020-10-22 02:18:50,073 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 02:18:50,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.opt.i [2020-10-22 02:18:50,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5fdf8f56/68494f4e7f3a4ad98a44bb180942f4e6/FLAG469543486 [2020-10-22 02:18:50,328 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5fdf8f56/68494f4e7f3a4ad98a44bb180942f4e6 [2020-10-22 02:18:50,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 02:18:50,343 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 02:18:50,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 02:18:50,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 02:18:50,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 02:18:50,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:18:50" (1/1) ... [2020-10-22 02:18:50,355 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d26ab63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:50, skipping insertion in model container [2020-10-22 02:18:50,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 02:18:50" (1/1) ... [2020-10-22 02:18:50,365 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 02:18:50,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 02:18:50,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:18:50,954 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 02:18:51,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 02:18:51,102 INFO L208 MainTranslator]: Completed translation [2020-10-22 02:18:51,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51 WrapperNode [2020-10-22 02:18:51,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 02:18:51,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 02:18:51,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 02:18:51,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 02:18:51,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,154 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 02:18:51,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 02:18:51,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 02:18:51,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 02:18:51,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,204 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (1/1) ... [2020-10-22 02:18:51,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 02:18:51,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 02:18:51,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 02:18:51,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 02:18:51,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (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 02:18:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 02:18:51,289 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 02:18:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 02:18:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 02:18:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-22 02:18:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-22 02:18:51,290 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-22 02:18:51,290 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-22 02:18:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-22 02:18:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-22 02:18:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-10-22 02:18:51,291 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-10-22 02:18:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 02:18:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 02:18:51,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 02:18:51,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 02:18:51,294 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 02:18:51,856 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 02:18:51,856 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-22 02:18:51,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:18:51 BoogieIcfgContainer [2020-10-22 02:18:51,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 02:18:51,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 02:18:51,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 02:18:51,870 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 02:18:51,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 02:18:50" (1/3) ... [2020-10-22 02:18:51,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fe6638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:18:51, skipping insertion in model container [2020-10-22 02:18:51,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 02:18:51" (2/3) ... [2020-10-22 02:18:51,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32fe6638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 02:18:51, skipping insertion in model container [2020-10-22 02:18:51,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 02:18:51" (3/3) ... [2020-10-22 02:18:51,877 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.opt.i [2020-10-22 02:18:51,891 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 02:18:51,892 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 02:18:51,903 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 02:18:51,904 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 02:18:51,949 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,950 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,950 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,951 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,952 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,953 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,953 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,954 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,954 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,954 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,955 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,955 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,956 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,956 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,957 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,957 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,958 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,958 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,959 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,959 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,959 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,960 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,966 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,967 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,967 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,974 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,974 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,975 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,975 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,980 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,980 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,981 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,985 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,985 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 02:18:51,993 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 02:18:52,011 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 02:18:52,034 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 02:18:52,035 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 02:18:52,035 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 02:18:52,035 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 02:18:52,035 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 02:18:52,035 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 02:18:52,036 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 02:18:52,036 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 02:18:52,061 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 02:18:52,062 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 202 flow [2020-10-22 02:18:52,065 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 202 flow [2020-10-22 02:18:52,067 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 202 flow [2020-10-22 02:18:52,160 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-10-22 02:18:52,160 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 02:18:52,170 INFO L80 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 87 events. 3/87 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 72 event pairs, 0 based on Foata normal form. 0/83 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-10-22 02:18:52,179 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-10-22 02:18:53,410 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-10-22 02:18:53,739 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-10-22 02:18:54,158 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-22 02:18:54,268 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-10-22 02:18:54,453 INFO L131 LiptonReduction]: Checked pairs total: 3854 [2020-10-22 02:18:54,453 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-10-22 02:18:54,464 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-10-22 02:18:54,554 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-10-22 02:18:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-10-22 02:18:54,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 02:18:54,591 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:54,592 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:54,592 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:54,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:54,599 INFO L82 PathProgramCache]: Analyzing trace with hash -709438342, now seen corresponding path program 1 times [2020-10-22 02:18:54,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:54,625 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976117245] [2020-10-22 02:18:54,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:54,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:54,891 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 02:18:54,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976117245] [2020-10-22 02:18:54,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:54,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:18:54,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [878158772] [2020-10-22 02:18:54,895 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:54,899 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:54,915 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 02:18:54,915 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:54,921 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:54,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:18:54,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:54,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:18:54,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:54,940 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-10-22 02:18:54,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:54,993 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-10-22 02:18:54,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:18:54,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 02:18:54,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:55,017 INFO L225 Difference]: With dead ends: 670 [2020-10-22 02:18:55,018 INFO L226 Difference]: Without dead ends: 526 [2020-10-22 02:18:55,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:55,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-10-22 02:18:55,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-10-22 02:18:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-10-22 02:18:55,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-10-22 02:18:55,130 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-10-22 02:18:55,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:55,131 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-10-22 02:18:55,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:18:55,131 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-10-22 02:18:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 02:18:55,135 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:55,135 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:55,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 02:18:55,136 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:55,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:55,137 INFO L82 PathProgramCache]: Analyzing trace with hash -534620391, now seen corresponding path program 1 times [2020-10-22 02:18:55,139 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:55,139 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338797731] [2020-10-22 02:18:55,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:55,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:55,233 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 02:18:55,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338797731] [2020-10-22 02:18:55,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:55,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:55,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [384002891] [2020-10-22 02:18:55,235 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:55,236 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:55,240 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 17 transitions. [2020-10-22 02:18:55,240 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:55,294 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:55,295 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:55,295 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:55,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:55,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:55,296 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-10-22 02:18:55,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:55,329 INFO L93 Difference]: Finished difference Result 682 states and 2180 transitions. [2020-10-22 02:18:55,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:55,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-22 02:18:55,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:55,334 INFO L225 Difference]: With dead ends: 682 [2020-10-22 02:18:55,335 INFO L226 Difference]: Without dead ends: 394 [2020-10-22 02:18:55,336 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 02:18:55,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2020-10-22 02:18:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 394. [2020-10-22 02:18:55,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2020-10-22 02:18:55,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 1224 transitions. [2020-10-22 02:18:55,361 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 1224 transitions. Word has length 11 [2020-10-22 02:18:55,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:55,362 INFO L481 AbstractCegarLoop]: Abstraction has 394 states and 1224 transitions. [2020-10-22 02:18:55,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:55,362 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 1224 transitions. [2020-10-22 02:18:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 02:18:55,364 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:55,364 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:55,365 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 02:18:55,365 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:55,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:55,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1129499006, now seen corresponding path program 1 times [2020-10-22 02:18:55,367 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:55,367 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377677290] [2020-10-22 02:18:55,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:55,472 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 02:18:55,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377677290] [2020-10-22 02:18:55,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:55,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 02:18:55,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1071309422] [2020-10-22 02:18:55,473 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:55,475 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:55,478 INFO L252 McrAutomatonBuilder]: Finished intersection with 21 states and 28 transitions. [2020-10-22 02:18:55,478 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:55,597 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:55,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 02:18:55,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:55,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 02:18:55,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 02:18:55,599 INFO L87 Difference]: Start difference. First operand 394 states and 1224 transitions. Second operand 3 states. [2020-10-22 02:18:55,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:55,610 INFO L93 Difference]: Finished difference Result 376 states and 1155 transitions. [2020-10-22 02:18:55,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 02:18:55,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-22 02:18:55,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:55,615 INFO L225 Difference]: With dead ends: 376 [2020-10-22 02:18:55,615 INFO L226 Difference]: Without dead ends: 376 [2020-10-22 02:18:55,616 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 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 02:18:55,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2020-10-22 02:18:55,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 376. [2020-10-22 02:18:55,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-22 02:18:55,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1155 transitions. [2020-10-22 02:18:55,632 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1155 transitions. Word has length 12 [2020-10-22 02:18:55,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:55,632 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 1155 transitions. [2020-10-22 02:18:55,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 02:18:55,632 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1155 transitions. [2020-10-22 02:18:55,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 02:18:55,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:55,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:55,635 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 02:18:55,635 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:55,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:55,636 INFO L82 PathProgramCache]: Analyzing trace with hash -951035328, now seen corresponding path program 1 times [2020-10-22 02:18:55,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:55,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872254933] [2020-10-22 02:18:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:55,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:55,693 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 02:18:55,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872254933] [2020-10-22 02:18:55,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:55,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:55,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1907677073] [2020-10-22 02:18:55,695 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:55,697 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:55,703 INFO L252 McrAutomatonBuilder]: Finished intersection with 39 states and 71 transitions. [2020-10-22 02:18:55,704 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:56,100 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:56,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:56,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:56,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:56,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:56,101 INFO L87 Difference]: Start difference. First operand 376 states and 1155 transitions. Second operand 4 states. [2020-10-22 02:18:56,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:56,131 INFO L93 Difference]: Finished difference Result 466 states and 1398 transitions. [2020-10-22 02:18:56,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:56,132 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-10-22 02:18:56,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:56,137 INFO L225 Difference]: With dead ends: 466 [2020-10-22 02:18:56,137 INFO L226 Difference]: Without dead ends: 226 [2020-10-22 02:18:56,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 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 02:18:56,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-10-22 02:18:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-10-22 02:18:56,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-22 02:18:56,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 651 transitions. [2020-10-22 02:18:56,154 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 651 transitions. Word has length 13 [2020-10-22 02:18:56,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:56,155 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 651 transitions. [2020-10-22 02:18:56,155 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:56,155 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 651 transitions. [2020-10-22 02:18:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-22 02:18:56,159 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:56,160 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:56,160 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 02:18:56,160 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:56,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:56,161 INFO L82 PathProgramCache]: Analyzing trace with hash 1524641156, now seen corresponding path program 1 times [2020-10-22 02:18:56,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:56,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816228660] [2020-10-22 02:18:56,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:56,289 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 02:18:56,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816228660] [2020-10-22 02:18:56,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:56,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 02:18:56,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [736910174] [2020-10-22 02:18:56,291 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:56,293 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:56,300 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-10-22 02:18:56,300 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:56,376 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:18:56,416 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:18:56,445 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:18:56,539 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-22 02:18:56,624 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [6776#(not (= 4 ~__unbuffered_cnt~0))] [2020-10-22 02:18:56,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 02:18:56,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:56,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 02:18:56,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 02:18:56,626 INFO L87 Difference]: Start difference. First operand 226 states and 651 transitions. Second operand 5 states. [2020-10-22 02:18:56,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:56,692 INFO L93 Difference]: Finished difference Result 243 states and 637 transitions. [2020-10-22 02:18:56,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:18:56,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-10-22 02:18:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:56,694 INFO L225 Difference]: With dead ends: 243 [2020-10-22 02:18:56,694 INFO L226 Difference]: Without dead ends: 162 [2020-10-22 02:18:56,695 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:18:56,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-22 02:18:56,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-10-22 02:18:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-10-22 02:18:56,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 391 transitions. [2020-10-22 02:18:56,701 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 391 transitions. Word has length 14 [2020-10-22 02:18:56,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:56,701 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 391 transitions. [2020-10-22 02:18:56,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 02:18:56,701 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 391 transitions. [2020-10-22 02:18:56,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 02:18:56,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:56,702 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:56,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 02:18:56,703 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:56,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:56,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1193386920, now seen corresponding path program 1 times [2020-10-22 02:18:56,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:56,704 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509149774] [2020-10-22 02:18:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:56,760 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 02:18:56,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509149774] [2020-10-22 02:18:56,761 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:56,761 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 02:18:56,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1882435085] [2020-10-22 02:18:56,761 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:56,763 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:56,769 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-10-22 02:18:56,769 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:57,037 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [7354#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:18:57,038 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 02:18:57,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:57,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 02:18:57,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-22 02:18:57,039 INFO L87 Difference]: Start difference. First operand 162 states and 391 transitions. Second operand 7 states. [2020-10-22 02:18:57,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:57,112 INFO L93 Difference]: Finished difference Result 158 states and 360 transitions. [2020-10-22 02:18:57,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-22 02:18:57,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2020-10-22 02:18:57,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:57,114 INFO L225 Difference]: With dead ends: 158 [2020-10-22 02:18:57,114 INFO L226 Difference]: Without dead ends: 125 [2020-10-22 02:18:57,115 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:18:57,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-10-22 02:18:57,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-10-22 02:18:57,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-22 02:18:57,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 282 transitions. [2020-10-22 02:18:57,120 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 282 transitions. Word has length 16 [2020-10-22 02:18:57,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:57,121 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 282 transitions. [2020-10-22 02:18:57,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 02:18:57,121 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 282 transitions. [2020-10-22 02:18:57,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 02:18:57,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:57,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:57,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 02:18:57,122 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:57,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1709090152, now seen corresponding path program 1 times [2020-10-22 02:18:57,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:57,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789857834] [2020-10-22 02:18:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:57,219 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 02:18:57,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789857834] [2020-10-22 02:18:57,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:57,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-22 02:18:57,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1162455775] [2020-10-22 02:18:57,221 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:57,223 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:57,227 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 34 transitions. [2020-10-22 02:18:57,228 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:57,300 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [7772#(<= ~__unbuffered_cnt~0 0)] [2020-10-22 02:18:57,300 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-22 02:18:57,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:57,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-22 02:18:57,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-22 02:18:57,302 INFO L87 Difference]: Start difference. First operand 125 states and 282 transitions. Second operand 8 states. [2020-10-22 02:18:57,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:57,404 INFO L93 Difference]: Finished difference Result 120 states and 270 transitions. [2020-10-22 02:18:57,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-22 02:18:57,405 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2020-10-22 02:18:57,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:57,406 INFO L225 Difference]: With dead ends: 120 [2020-10-22 02:18:57,406 INFO L226 Difference]: Without dead ends: 111 [2020-10-22 02:18:57,409 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-22 02:18:57,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-22 02:18:57,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-22 02:18:57,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-22 02:18:57,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 254 transitions. [2020-10-22 02:18:57,431 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 254 transitions. Word has length 18 [2020-10-22 02:18:57,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:57,432 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 254 transitions. [2020-10-22 02:18:57,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-22 02:18:57,432 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 254 transitions. [2020-10-22 02:18:57,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 02:18:57,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:57,432 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:57,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 02:18:57,433 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:57,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:57,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1760559887, now seen corresponding path program 1 times [2020-10-22 02:18:57,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:57,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862110938] [2020-10-22 02:18:57,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:57,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:57,503 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 02:18:57,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862110938] [2020-10-22 02:18:57,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:57,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:57,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1753395955] [2020-10-22 02:18:57,505 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:57,508 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:57,516 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 40 transitions. [2020-10-22 02:18:57,516 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:57,677 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:57,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:57,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:57,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:57,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:57,678 INFO L87 Difference]: Start difference. First operand 111 states and 254 transitions. Second operand 4 states. [2020-10-22 02:18:57,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:57,705 INFO L93 Difference]: Finished difference Result 144 states and 327 transitions. [2020-10-22 02:18:57,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:57,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-22 02:18:57,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:57,707 INFO L225 Difference]: With dead ends: 144 [2020-10-22 02:18:57,707 INFO L226 Difference]: Without dead ends: 71 [2020-10-22 02:18:57,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 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 02:18:57,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-22 02:18:57,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-22 02:18:57,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-22 02:18:57,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-10-22 02:18:57,711 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-10-22 02:18:57,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:57,711 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-10-22 02:18:57,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:57,711 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-10-22 02:18:57,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-22 02:18:57,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 02:18:57,712 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 02:18:57,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 02:18:57,713 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 02:18:57,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 02:18:57,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1416850207, now seen corresponding path program 2 times [2020-10-22 02:18:57,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 02:18:57,715 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262335859] [2020-10-22 02:18:57,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 02:18:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 02:18:57,768 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 02:18:57,768 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262335859] [2020-10-22 02:18:57,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 02:18:57,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 02:18:57,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1609898331] [2020-10-22 02:18:57,769 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 02:18:57,774 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 02:18:57,784 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 74 transitions. [2020-10-22 02:18:57,784 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 02:18:58,102 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 02:18:58,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 02:18:58,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 02:18:58,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 02:18:58,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 02:18:58,104 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-10-22 02:18:58,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 02:18:58,119 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-10-22 02:18:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 02:18:58,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-22 02:18:58,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 02:18:58,120 INFO L225 Difference]: With dead ends: 70 [2020-10-22 02:18:58,120 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 02:18:58,120 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 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 02:18:58,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 02:18:58,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 02:18:58,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 02:18:58,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 02:18:58,121 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-10-22 02:18:58,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 02:18:58,122 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 02:18:58,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 02:18:58,122 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 02:18:58,122 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 02:18:58,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 02:18:58,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 02:18:58 BasicIcfg [2020-10-22 02:18:58,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 02:18:58,131 INFO L168 Benchmark]: Toolchain (without parser) took 7792.64 ms. Allocated memory was 138.9 MB in the beginning and 293.6 MB in the end (delta: 154.7 MB). Free memory was 100.2 MB in the beginning and 174.3 MB in the end (delta: -74.1 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:58,132 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. [2020-10-22 02:18:58,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.47 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.0 MB in the beginning and 154.9 MB in the end (delta: -56.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:58,139 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.40 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 152.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:58,141 INFO L168 Benchmark]: Boogie Preprocessor took 30.18 ms. Allocated memory is still 201.9 MB. Free memory was 152.9 MB in the beginning and 150.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:58,141 INFO L168 Benchmark]: RCFGBuilder took 647.78 ms. Allocated memory is still 201.9 MB. Free memory was 150.9 MB in the beginning and 125.4 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:58,145 INFO L168 Benchmark]: TraceAbstraction took 6264.90 ms. Allocated memory was 201.9 MB in the beginning and 293.6 MB in the end (delta: 91.8 MB). Free memory was 124.4 MB in the beginning and 174.3 MB in the end (delta: -50.0 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. [2020-10-22 02:18:58,154 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.4 MB in the beginning and 120.0 MB in the end (delta: 419.5 kB). Peak memory consumption was 419.5 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.47 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 99.0 MB in the beginning and 154.9 MB in the end (delta: -56.0 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 78.40 ms. Allocated memory is still 201.9 MB. Free memory was 154.9 MB in the beginning and 152.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.18 ms. Allocated memory is still 201.9 MB. Free memory was 152.9 MB in the beginning and 150.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 647.78 ms. Allocated memory is still 201.9 MB. Free memory was 150.9 MB in the beginning and 125.4 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6264.90 ms. Allocated memory was 201.9 MB in the beginning and 293.6 MB in the end (delta: 91.8 MB). Free memory was 124.4 MB in the beginning and 174.3 MB in the end (delta: -50.0 MB). Peak memory consumption was 41.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1064 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 66 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 101 PlacesBefore, 38 PlacesAfterwards, 91 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 6 FixpointIterations, 19 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 80 TotalNumberOfCompositions, 3854 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 5 procedures, 89 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.0s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.5s, HoareTripleCheckerStatistics: 188 SDtfs, 179 SDslu, 299 SDs, 0 SdLazy, 168 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 149 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 4945 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...