/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:42:30,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:42:30,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:42:30,854 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:42:30,855 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:42:30,857 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:42:30,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:42:30,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:42:30,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:42:30,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:42:30,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:42:30,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:42:30,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:42:30,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:42:30,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:42:30,872 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:42:30,873 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:42:30,874 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:42:30,876 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:42:30,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:42:30,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:42:30,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:42:30,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:42:30,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:42:30,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:42:30,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:42:30,919 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:42:30,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:42:30,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:42:30,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:42:30,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:42:30,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:42:30,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:42:30,940 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:42:30,941 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:42:30,942 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:42:30,944 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-WP.epf [2020-11-09 15:42:30,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:42:30,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:42:30,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:42:30,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:42:30,982 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:42:30,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:42:30,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:42:30,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:42:30,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:42:30,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:42:30,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:42:30,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:42:30,984 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:42:30,984 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:42:30,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:42:30,984 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:42:30,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:42:30,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:42:30,985 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:42:30,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:42:30,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:42:30,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:42:30,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:42:30,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:42:30,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:42:30,986 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:42:30,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:42:30,987 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:42:30,987 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:42:30,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:42:30,987 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:42:31,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:42:31,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:42:31,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:42:31,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:42:31,474 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:42:31,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-11-09 15:42:31,562 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3416a3121/bb0b8b79e3324325a172de625438f925/FLAG761813382 [2020-11-09 15:42:32,205 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:42:32,206 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_pso.oepc.i [2020-11-09 15:42:32,222 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3416a3121/bb0b8b79e3324325a172de625438f925/FLAG761813382 [2020-11-09 15:42:32,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3416a3121/bb0b8b79e3324325a172de625438f925 [2020-11-09 15:42:32,457 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:42:32,464 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:42:32,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:42:32,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:42:32,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:42:32,472 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:42:32" (1/1) ... [2020-11-09 15:42:32,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67e031f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:32, skipping insertion in model container [2020-11-09 15:42:32,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:42:32" (1/1) ... [2020-11-09 15:42:32,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:42:32,537 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:42:33,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:42:33,103 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:42:33,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:42:33,385 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:42:33,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33 WrapperNode [2020-11-09 15:42:33,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:42:33,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:42:33,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:42:33,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:42:33,403 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:42:33,501 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:42:33,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:42:33,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:42:33,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (1/1) ... [2020-11-09 15:42:33,571 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:42:33,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:42:33,572 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:42:33,572 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:42:33,573 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (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 [2020-11-09 15:42:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:42:33,662 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:42:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:42:33,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:42:33,664 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:42:33,664 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:42:33,665 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:42:33,665 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:42:33,666 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:42:33,666 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:42:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 15:42:33,667 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 15:42:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:42:33,667 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:42:33,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:42:33,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:42:33,670 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-09 15:42:34,206 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:42:34,207 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:42:34,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:42:34 BoogieIcfgContainer [2020-11-09 15:42:34,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:42:34,212 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:42:34,212 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:42:34,216 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:42:34,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:42:32" (1/3) ... [2020-11-09 15:42:34,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdf7ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:42:34, skipping insertion in model container [2020-11-09 15:42:34,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:42:33" (2/3) ... [2020-11-09 15:42:34,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fdf7ff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:42:34, skipping insertion in model container [2020-11-09 15:42:34,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:42:34" (3/3) ... [2020-11-09 15:42:34,220 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_pso.oepc.i [2020-11-09 15:42:34,238 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:42:34,238 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:42:34,243 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:42:34,244 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:42:34,280 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,281 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,281 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,281 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,282 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,282 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,283 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,284 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,285 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,285 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,286 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,286 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,286 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,287 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,288 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,289 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,289 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,290 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,290 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,291 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,292 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,292 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,292 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,293 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,293 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,293 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,293 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,294 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,294 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,294 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,295 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,298 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,298 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,299 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,306 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,306 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,307 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,307 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,310 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,310 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,311 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,311 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,314 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,314 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,314 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:42:34,317 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:42:34,331 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 15:42:34,370 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:42:34,370 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:42:34,370 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:42:34,371 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:42:34,371 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:42:34,371 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:42:34,371 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:42:34,371 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:42:34,385 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:42:34,386 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:34,390 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:34,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 91 transitions, 202 flow [2020-11-09 15:42:34,459 INFO L129 PetriNetUnfolder]: 3/87 cut-off events. [2020-11-09 15:42:34,459 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:42:34,467 INFO L84 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. [2020-11-09 15:42:34,475 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 15:42:37,548 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 15:42:38,154 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 27 [2020-11-09 15:42:38,302 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-11-09 15:42:38,491 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2020-11-09 15:42:39,218 WARN L194 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 15:42:39,352 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 15:42:39,621 WARN L194 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-09 15:42:39,736 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-09 15:42:40,174 INFO L131 LiptonReduction]: Checked pairs total: 3854 [2020-11-09 15:42:40,174 INFO L133 LiptonReduction]: Total number of compositions: 80 [2020-11-09 15:42:40,182 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 15:42:40,240 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 15:42:40,243 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 15:42:40,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:42:40,254 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:40,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:40,255 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:40,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:40,263 INFO L82 PathProgramCache]: Analyzing trace with hash -709438342, now seen corresponding path program 1 times [2020-11-09 15:42:40,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:40,290 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173126358] [2020-11-09 15:42:40,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:40,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:40,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:40,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173126358] [2020-11-09 15:42:40,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:40,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:42:40,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [704655936] [2020-11-09 15:42:40,569 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:40,574 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:40,598 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 15:42:40,598 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:40,605 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:40,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:42:40,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:40,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:42:40,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:40,630 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 15:42:40,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:40,694 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 15:42:40,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:42:40,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 15:42:40,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:40,730 INFO L225 Difference]: With dead ends: 670 [2020-11-09 15:42:40,730 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 15:42:40,732 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 [2020-11-09 15:42:40,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 15:42:40,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 15:42:40,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 15:42:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 15:42:40,863 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 15:42:40,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:40,864 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 15:42:40,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:42:40,865 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 15:42:40,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:42:40,867 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:40,867 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:40,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:42:40,868 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:40,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:40,869 INFO L82 PathProgramCache]: Analyzing trace with hash 839232956, now seen corresponding path program 1 times [2020-11-09 15:42:40,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:40,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850256210] [2020-11-09 15:42:40,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:40,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:40,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850256210] [2020-11-09 15:42:40,954 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:40,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:40,954 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [14559394] [2020-11-09 15:42:40,954 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:40,956 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:40,958 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:42:40,958 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:41,073 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:41,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:41,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:41,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:41,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:41,076 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 15:42:41,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:41,112 INFO L93 Difference]: Finished difference Result 634 states and 2040 transitions. [2020-11-09 15:42:41,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:41,112 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:42:41,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:41,117 INFO L225 Difference]: With dead ends: 634 [2020-11-09 15:42:41,117 INFO L226 Difference]: Without dead ends: 322 [2020-11-09 15:42:41,118 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:41,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-11-09 15:42:41,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-11-09 15:42:41,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-11-09 15:42:41,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 1008 transitions. [2020-11-09 15:42:41,143 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 1008 transitions. Word has length 11 [2020-11-09 15:42:41,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:41,143 INFO L481 AbstractCegarLoop]: Abstraction has 322 states and 1008 transitions. [2020-11-09 15:42:41,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:41,143 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 1008 transitions. [2020-11-09 15:42:41,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:42:41,145 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:41,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:41,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:42:41,146 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:41,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:41,146 INFO L82 PathProgramCache]: Analyzing trace with hash 1127842304, now seen corresponding path program 1 times [2020-11-09 15:42:41,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:41,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643712755] [2020-11-09 15:42:41,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:41,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:41,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643712755] [2020-11-09 15:42:41,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:41,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:42:41,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [372277107] [2020-11-09 15:42:41,263 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:41,266 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:41,269 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 15:42:41,270 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:41,284 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:41,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:42:41,284 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:41,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:42:41,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:41,289 INFO L87 Difference]: Start difference. First operand 322 states and 1008 transitions. Second operand 3 states. [2020-11-09 15:42:41,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:41,301 INFO L93 Difference]: Finished difference Result 304 states and 939 transitions. [2020-11-09 15:42:41,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:42:41,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 15:42:41,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:41,304 INFO L225 Difference]: With dead ends: 304 [2020-11-09 15:42:41,305 INFO L226 Difference]: Without dead ends: 304 [2020-11-09 15:42:41,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:42:41,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-11-09 15:42:41,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2020-11-09 15:42:41,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304 states. [2020-11-09 15:42:41,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 939 transitions. [2020-11-09 15:42:41,321 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 939 transitions. Word has length 12 [2020-11-09 15:42:41,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:41,321 INFO L481 AbstractCegarLoop]: Abstraction has 304 states and 939 transitions. [2020-11-09 15:42:41,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:42:41,321 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 939 transitions. [2020-11-09 15:42:41,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:42:41,323 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:41,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:41,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:42:41,324 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:41,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:41,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1624168671, now seen corresponding path program 1 times [2020-11-09 15:42:41,326 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:41,326 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274078753] [2020-11-09 15:42:41,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:41,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:41,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274078753] [2020-11-09 15:42:41,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:41,378 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:41,378 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [201943334] [2020-11-09 15:42:41,378 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:41,380 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:41,383 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 33 transitions. [2020-11-09 15:42:41,384 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:41,458 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:41,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:41,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:41,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:41,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:41,460 INFO L87 Difference]: Start difference. First operand 304 states and 939 transitions. Second operand 4 states. [2020-11-09 15:42:41,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:41,487 INFO L93 Difference]: Finished difference Result 406 states and 1208 transitions. [2020-11-09 15:42:41,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:41,488 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-09 15:42:41,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:41,490 INFO L225 Difference]: With dead ends: 406 [2020-11-09 15:42:41,490 INFO L226 Difference]: Without dead ends: 226 [2020-11-09 15:42:41,491 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:41,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-09 15:42:41,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-09 15:42:41,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-11-09 15:42:41,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 651 transitions. [2020-11-09 15:42:41,501 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 651 transitions. Word has length 13 [2020-11-09 15:42:41,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:41,501 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 651 transitions. [2020-11-09 15:42:41,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:41,501 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 651 transitions. [2020-11-09 15:42:41,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:42:41,503 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:41,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:41,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:42:41,503 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:41,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:41,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1524641156, now seen corresponding path program 1 times [2020-11-09 15:42:41,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:41,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155132704] [2020-11-09 15:42:41,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:41,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:41,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155132704] [2020-11-09 15:42:41,576 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:41,576 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:42:41,579 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1298996126] [2020-11-09 15:42:41,579 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:41,583 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:41,591 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 15:42:41,591 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:41,651 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:41,689 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:41,704 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:41,726 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:41,739 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:41,759 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:41,805 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [6308#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 15:42:41,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:42:41,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:41,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:42:41,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:42:41,807 INFO L87 Difference]: Start difference. First operand 226 states and 651 transitions. Second operand 5 states. [2020-11-09 15:42:41,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:41,882 INFO L93 Difference]: Finished difference Result 243 states and 637 transitions. [2020-11-09 15:42:41,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:42:41,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:42:41,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:41,884 INFO L225 Difference]: With dead ends: 243 [2020-11-09 15:42:41,885 INFO L226 Difference]: Without dead ends: 162 [2020-11-09 15:42:41,885 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 [2020-11-09 15:42:41,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-11-09 15:42:41,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2020-11-09 15:42:41,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-11-09 15:42:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 391 transitions. [2020-11-09 15:42:41,912 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 391 transitions. Word has length 14 [2020-11-09 15:42:41,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:41,913 INFO L481 AbstractCegarLoop]: Abstraction has 162 states and 391 transitions. [2020-11-09 15:42:41,913 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:42:41,914 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 391 transitions. [2020-11-09 15:42:41,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:42:41,915 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:41,916 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:41,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:42:41,916 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:41,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:41,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1193386920, now seen corresponding path program 1 times [2020-11-09 15:42:41,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:41,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872602142] [2020-11-09 15:42:41,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:41,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872602142] [2020-11-09 15:42:41,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:41,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:42:41,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [95651313] [2020-11-09 15:42:41,994 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:41,997 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:42,006 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-11-09 15:42:42,007 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:42,022 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:42,063 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:42:42,131 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:42,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:42:42,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:42,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:42:42,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:42:42,134 INFO L87 Difference]: Start difference. First operand 162 states and 391 transitions. Second operand 6 states. [2020-11-09 15:42:42,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:42,213 INFO L93 Difference]: Finished difference Result 158 states and 360 transitions. [2020-11-09 15:42:42,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:42:42,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-09 15:42:42,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:42,215 INFO L225 Difference]: With dead ends: 158 [2020-11-09 15:42:42,215 INFO L226 Difference]: Without dead ends: 125 [2020-11-09 15:42:42,216 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:42:42,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-11-09 15:42:42,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-11-09 15:42:42,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-11-09 15:42:42,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 282 transitions. [2020-11-09 15:42:42,221 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 282 transitions. Word has length 16 [2020-11-09 15:42:42,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:42,221 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 282 transitions. [2020-11-09 15:42:42,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:42:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 282 transitions. [2020-11-09 15:42:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 15:42:42,222 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:42,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:42:42,223 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:42:42,223 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:42,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:42,224 INFO L82 PathProgramCache]: Analyzing trace with hash -1709090152, now seen corresponding path program 1 times [2020-11-09 15:42:42,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:42,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885169661] [2020-11-09 15:42:42,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:42,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:42,297 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885169661] [2020-11-09 15:42:42,297 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:42,297 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 15:42:42,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [922012156] [2020-11-09 15:42:42,298 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:42,300 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:42,307 INFO L252 McrAutomatonBuilder]: Finished intersection with 27 states and 34 transitions. [2020-11-09 15:42:42,307 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:42,329 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:42,330 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 15:42:42,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:42,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 15:42:42,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:42:42,331 INFO L87 Difference]: Start difference. First operand 125 states and 282 transitions. Second operand 7 states. [2020-11-09 15:42:42,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:42,417 INFO L93 Difference]: Finished difference Result 120 states and 270 transitions. [2020-11-09 15:42:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 15:42:42,418 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-09 15:42:42,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:42,420 INFO L225 Difference]: With dead ends: 120 [2020-11-09 15:42:42,420 INFO L226 Difference]: Without dead ends: 111 [2020-11-09 15:42:42,421 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-11-09 15:42:42,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-11-09 15:42:42,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-11-09 15:42:42,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-11-09 15:42:42,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 254 transitions. [2020-11-09 15:42:42,426 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 254 transitions. Word has length 18 [2020-11-09 15:42:42,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:42,426 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 254 transitions. [2020-11-09 15:42:42,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 15:42:42,426 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 254 transitions. [2020-11-09 15:42:42,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:42:42,427 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:42,427 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] [2020-11-09 15:42:42,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:42:42,428 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:42,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:42,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1760559887, now seen corresponding path program 1 times [2020-11-09 15:42:42,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:42,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130762994] [2020-11-09 15:42:42,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:42,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:42,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130762994] [2020-11-09 15:42:42,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:42,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:42:42,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2091384510] [2020-11-09 15:42:42,478 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:42,481 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:42,489 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 40 transitions. [2020-11-09 15:42:42,489 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:42,514 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:42,514 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:42,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:42,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:42,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:42,516 INFO L87 Difference]: Start difference. First operand 111 states and 254 transitions. Second operand 4 states. [2020-11-09 15:42:42,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:42,538 INFO L93 Difference]: Finished difference Result 144 states and 327 transitions. [2020-11-09 15:42:42,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:42,538 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:42:42,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:42,539 INFO L225 Difference]: With dead ends: 144 [2020-11-09 15:42:42,540 INFO L226 Difference]: Without dead ends: 71 [2020-11-09 15:42:42,540 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 [2020-11-09 15:42:42,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-11-09 15:42:42,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-11-09 15:42:42,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-11-09 15:42:42,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 143 transitions. [2020-11-09 15:42:42,544 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 143 transitions. Word has length 20 [2020-11-09 15:42:42,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:42,544 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 143 transitions. [2020-11-09 15:42:42,544 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:42,544 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 143 transitions. [2020-11-09 15:42:42,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:42:42,545 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:42:42,545 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] [2020-11-09 15:42:42,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:42:42,546 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:42:42,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:42:42,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1416850207, now seen corresponding path program 2 times [2020-11-09 15:42:42,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:42:42,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996226208] [2020-11-09 15:42:42,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:42:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:42:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-09 15:42:42,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996226208] [2020-11-09 15:42:42,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:42:42,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-09 15:42:42,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1669009153] [2020-11-09 15:42:42,590 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:42:42,592 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:42:42,605 INFO L252 McrAutomatonBuilder]: Finished intersection with 46 states and 74 transitions. [2020-11-09 15:42:42,606 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:42:42,712 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:42:42,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:42:42,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:42:42,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:42:42,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:42:42,713 INFO L87 Difference]: Start difference. First operand 71 states and 143 transitions. Second operand 4 states. [2020-11-09 15:42:42,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:42:42,729 INFO L93 Difference]: Finished difference Result 70 states and 142 transitions. [2020-11-09 15:42:42,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:42:42,730 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-11-09 15:42:42,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:42:42,730 INFO L225 Difference]: With dead ends: 70 [2020-11-09 15:42:42,730 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:42:42,731 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 [2020-11-09 15:42:42,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:42:42,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:42:42,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:42:42,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:42:42,731 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 15:42:42,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:42:42,732 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:42:42,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:42:42,732 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:42:42,732 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:42:42,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:42:42,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:42:42 BasicIcfg [2020-11-09 15:42:42,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:42:42,738 INFO L168 Benchmark]: Toolchain (without parser) took 10279.03 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 132.5 MB in the beginning and 75.8 MB in the end (delta: 56.7 MB). Peak memory consumption was 131.7 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:42,739 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:42:42,740 INFO L168 Benchmark]: CACSL2BoogieTranslator took 922.09 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 114.7 MB in the end (delta: 17.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:42,741 INFO L168 Benchmark]: Boogie Procedure Inliner took 109.31 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 112.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:42,742 INFO L168 Benchmark]: Boogie Preprocessor took 70.12 ms. Allocated memory is still 151.0 MB. Free memory was 112.6 MB in the beginning and 111.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:42,742 INFO L168 Benchmark]: RCFGBuilder took 638.20 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 87.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:42,743 INFO L168 Benchmark]: TraceAbstraction took 8525.02 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 86.9 MB in the beginning and 75.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 86.9 MB. Max. memory is 8.0 GB. [2020-11-09 15:42:42,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 151.0 MB. Free memory is still 124.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 922.09 ms. Allocated memory is still 151.0 MB. Free memory was 131.9 MB in the beginning and 114.7 MB in the end (delta: 17.2 MB). Peak memory consumption was 18.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 109.31 ms. Allocated memory is still 151.0 MB. Free memory was 114.7 MB in the beginning and 112.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.12 ms. Allocated memory is still 151.0 MB. Free memory was 112.6 MB in the beginning and 111.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 638.20 ms. Allocated memory is still 151.0 MB. Free memory was 111.3 MB in the beginning and 87.5 MB in the end (delta: 23.8 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 8525.02 ms. Allocated memory was 151.0 MB in the beginning and 225.4 MB in the end (delta: 74.4 MB). Free memory was 86.9 MB in the beginning and 75.8 MB in the end (delta: 11.1 MB). Peak memory consumption was 86.9 MB. Max. memory is 8.0 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: 5.7s, 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: 8.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.8s, HoareTripleCheckerStatistics: 188 SDtfs, 165 SDslu, 279 SDs, 0 SdLazy, 160 SolverSat, 45 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 99 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s 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...