/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/safe016_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7a177ad [2020-11-09 15:37:49,919 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-09 15:37:49,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-09 15:37:49,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-09 15:37:49,985 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-09 15:37:49,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-09 15:37:49,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-09 15:37:50,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-09 15:37:50,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-09 15:37:50,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-09 15:37:50,017 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-09 15:37:50,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-09 15:37:50,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-09 15:37:50,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-09 15:37:50,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-09 15:37:50,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-09 15:37:50,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-09 15:37:50,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-09 15:37:50,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-09 15:37:50,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-09 15:37:50,058 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-09 15:37:50,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-09 15:37:50,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-09 15:37:50,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-09 15:37:50,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-09 15:37:50,078 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-09 15:37:50,078 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-09 15:37:50,081 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-09 15:37:50,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-09 15:37:50,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-09 15:37:50,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-09 15:37:50,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-09 15:37:50,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-09 15:37:50,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-09 15:37:50,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-09 15:37:50,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-09 15:37:50,087 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 15:37:50,145 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-09 15:37:50,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-09 15:37:50,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-09 15:37:50,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-09 15:37:50,150 INFO L138 SettingsManager]: * Use SBE=true [2020-11-09 15:37:50,150 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-09 15:37:50,150 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-09 15:37:50,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-09 15:37:50,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-09 15:37:50,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-09 15:37:50,152 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-09 15:37:50,153 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-09 15:37:50,153 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-09 15:37:50,153 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-09 15:37:50,153 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-09 15:37:50,153 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-09 15:37:50,154 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-09 15:37:50,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-09 15:37:50,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-09 15:37:50,154 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-09 15:37:50,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-09 15:37:50,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-09 15:37:50,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-09 15:37:50,155 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-11-09 15:37:50,156 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-09 15:37:50,156 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-09 15:37:50,156 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-09 15:37:50,156 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-11-09 15:37:50,156 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-11-09 15:37:50,157 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-09 15:37:50,157 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-09 15:37:50,618 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-09 15:37:50,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-09 15:37:50,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-09 15:37:50,667 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-09 15:37:50,668 INFO L275 PluginConnector]: CDTParser initialized [2020-11-09 15:37:50,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-11-09 15:37:50,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f9dab23b/57fdd6c45a8b464584bb821008d645f8/FLAGc0c2e2036 [2020-11-09 15:37:51,512 INFO L306 CDTParser]: Found 1 translation units. [2020-11-09 15:37:51,513 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe016_tso.oepc.i [2020-11-09 15:37:51,537 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f9dab23b/57fdd6c45a8b464584bb821008d645f8/FLAGc0c2e2036 [2020-11-09 15:37:51,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f9dab23b/57fdd6c45a8b464584bb821008d645f8 [2020-11-09 15:37:51,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-09 15:37:51,816 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-09 15:37:51,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-09 15:37:51,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-09 15:37:51,827 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-09 15:37:51,828 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:37:51" (1/1) ... [2020-11-09 15:37:51,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@714901b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:51, skipping insertion in model container [2020-11-09 15:37:51,833 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:37:51" (1/1) ... [2020-11-09 15:37:51,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-09 15:37:51,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-09 15:37:52,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:37:52,484 INFO L203 MainTranslator]: Completed pre-run [2020-11-09 15:37:52,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-09 15:37:52,682 INFO L208 MainTranslator]: Completed translation [2020-11-09 15:37:52,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52 WrapperNode [2020-11-09 15:37:52,683 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-09 15:37:52,685 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-09 15:37:52,685 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-09 15:37:52,685 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-09 15:37:52,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,713 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-09 15:37:52,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-09 15:37:52,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-09 15:37:52,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-09 15:37:52,751 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,751 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (1/1) ... [2020-11-09 15:37:52,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-09 15:37:52,773 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-09 15:37:52,773 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-09 15:37:52,773 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-09 15:37:52,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (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 15:37:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-09 15:37:52,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-09 15:37:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-09 15:37:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-09 15:37:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-09 15:37:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-09 15:37:52,863 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-09 15:37:52,863 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-09 15:37:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-09 15:37:52,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-09 15:37:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-11-09 15:37:52,864 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-11-09 15:37:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-09 15:37:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-09 15:37:52,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-09 15:37:52,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-09 15:37:52,867 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 15:37:53,376 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-09 15:37:53,376 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-09 15:37:53,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:37:53 BoogieIcfgContainer [2020-11-09 15:37:53,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-09 15:37:53,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-09 15:37:53,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-09 15:37:53,384 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-09 15:37:53,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:37:51" (1/3) ... [2020-11-09 15:37:53,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5cb222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:37:53, skipping insertion in model container [2020-11-09 15:37:53,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:37:52" (2/3) ... [2020-11-09 15:37:53,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b5cb222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:37:53, skipping insertion in model container [2020-11-09 15:37:53,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:37:53" (3/3) ... [2020-11-09 15:37:53,388 INFO L111 eAbstractionObserver]: Analyzing ICFG safe016_tso.oepc.i [2020-11-09 15:37:53,409 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-09 15:37:53,410 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-09 15:37:53,415 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-09 15:37:53,416 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-09 15:37:53,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,462 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,463 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,463 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,463 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,463 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,464 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,464 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,465 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,465 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,466 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,466 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,466 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,466 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,467 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,467 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,468 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,468 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,468 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,469 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,469 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,469 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,469 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,470 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,471 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,472 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,472 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,472 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,472 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,472 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,472 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,473 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,473 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,476 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,476 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,477 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,477 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,487 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,488 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,488 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,488 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,492 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,492 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,493 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,493 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,496 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,497 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,497 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,497 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-09 15:37:53,500 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-09 15:37:53,514 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-09 15:37:53,540 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-09 15:37:53,540 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-09 15:37:53,540 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-09 15:37:53,540 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-11-09 15:37:53,540 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-09 15:37:53,540 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-09 15:37:53,541 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-09 15:37:53,541 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-09 15:37:53,556 INFO L128 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-11-09 15:37:53,557 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 89 transitions, 198 flow [2020-11-09 15:37:53,560 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 99 places, 89 transitions, 198 flow [2020-11-09 15:37:53,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 99 places, 89 transitions, 198 flow [2020-11-09 15:37:53,620 INFO L129 PetriNetUnfolder]: 3/85 cut-off events. [2020-11-09 15:37:53,620 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-09 15:37:53,628 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 3/85 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. 0/81 useless extension candidates. Maximal degree in co-relation 72. Up to 2 conditions per place. [2020-11-09 15:37:53,632 INFO L116 LiptonReduction]: Number of co-enabled transitions 2042 [2020-11-09 15:37:54,548 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-11-09 15:37:57,759 WARN L194 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 15:37:58,014 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-11-09 15:37:59,039 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 25 [2020-11-09 15:37:59,219 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 29 [2020-11-09 15:37:59,397 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-09 15:37:59,504 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-09 15:37:59,717 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-11-09 15:38:00,242 WARN L194 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 15:38:00,409 WARN L194 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 15:38:00,788 WARN L194 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2020-11-09 15:38:00,962 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-09 15:38:01,168 WARN L194 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-11-09 15:38:01,551 WARN L194 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-11-09 15:38:01,676 INFO L131 LiptonReduction]: Checked pairs total: 4334 [2020-11-09 15:38:01,677 INFO L133 LiptonReduction]: Total number of compositions: 82 [2020-11-09 15:38:01,685 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 26 transitions, 72 flow [2020-11-09 15:38:01,754 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 706 states. [2020-11-09 15:38:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states. [2020-11-09 15:38:01,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-09 15:38:01,767 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:01,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:01,769 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:01,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:01,776 INFO L82 PathProgramCache]: Analyzing trace with hash -782796091, now seen corresponding path program 1 times [2020-11-09 15:38:01,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:01,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451051761] [2020-11-09 15:38:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:02,124 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 15:38:02,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451051761] [2020-11-09 15:38:02,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:02,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:38:02,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [207396082] [2020-11-09 15:38:02,129 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:02,134 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:02,150 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-11-09 15:38:02,151 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:02,156 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:02,156 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:38:02,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:02,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:38:02,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:38:02,173 INFO L87 Difference]: Start difference. First operand 706 states. Second operand 3 states. [2020-11-09 15:38:02,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:02,229 INFO L93 Difference]: Finished difference Result 670 states and 2295 transitions. [2020-11-09 15:38:02,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:38:02,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-11-09 15:38:02,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:02,255 INFO L225 Difference]: With dead ends: 670 [2020-11-09 15:38:02,255 INFO L226 Difference]: Without dead ends: 526 [2020-11-09 15:38:02,257 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 15:38:02,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2020-11-09 15:38:02,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2020-11-09 15:38:02,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 526 states. [2020-11-09 15:38:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 1743 transitions. [2020-11-09 15:38:02,370 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 1743 transitions. Word has length 10 [2020-11-09 15:38:02,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:02,371 INFO L481 AbstractCegarLoop]: Abstraction has 526 states and 1743 transitions. [2020-11-09 15:38:02,371 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:38:02,371 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 1743 transitions. [2020-11-09 15:38:02,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-09 15:38:02,374 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:02,374 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:02,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-09 15:38:02,375 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:02,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:02,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1879702246, now seen corresponding path program 1 times [2020-11-09 15:38:02,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:02,385 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144034125] [2020-11-09 15:38:02,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:02,468 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 15:38:02,468 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144034125] [2020-11-09 15:38:02,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:02,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:38:02,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [159800948] [2020-11-09 15:38:02,469 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:02,471 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:02,474 INFO L252 McrAutomatonBuilder]: Finished intersection with 19 states and 25 transitions. [2020-11-09 15:38:02,474 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:02,580 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:02,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:38:02,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:02,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:38:02,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:38:02,584 INFO L87 Difference]: Start difference. First operand 526 states and 1743 transitions. Second operand 4 states. [2020-11-09 15:38:02,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:02,632 INFO L93 Difference]: Finished difference Result 724 states and 2331 transitions. [2020-11-09 15:38:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-09 15:38:02,633 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-09 15:38:02,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:02,639 INFO L225 Difference]: With dead ends: 724 [2020-11-09 15:38:02,639 INFO L226 Difference]: Without dead ends: 412 [2020-11-09 15:38:02,640 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 15:38:02,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2020-11-09 15:38:02,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2020-11-09 15:38:02,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2020-11-09 15:38:02,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 1323 transitions. [2020-11-09 15:38:02,664 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 1323 transitions. Word has length 11 [2020-11-09 15:38:02,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:02,665 INFO L481 AbstractCegarLoop]: Abstraction has 412 states and 1323 transitions. [2020-11-09 15:38:02,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:38:02,665 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 1323 transitions. [2020-11-09 15:38:02,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-09 15:38:02,667 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:02,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:02,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-09 15:38:02,668 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:02,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:02,671 INFO L82 PathProgramCache]: Analyzing trace with hash -647796126, now seen corresponding path program 1 times [2020-11-09 15:38:02,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:02,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906165974] [2020-11-09 15:38:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:02,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:02,806 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 15:38:02,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906165974] [2020-11-09 15:38:02,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:02,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:38:02,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [725371263] [2020-11-09 15:38:02,810 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:02,812 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:02,815 INFO L252 McrAutomatonBuilder]: Finished intersection with 15 states and 16 transitions. [2020-11-09 15:38:02,815 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:02,835 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:02,835 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:38:02,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:02,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:38:02,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:38:02,836 INFO L87 Difference]: Start difference. First operand 412 states and 1323 transitions. Second operand 3 states. [2020-11-09 15:38:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:02,868 INFO L93 Difference]: Finished difference Result 518 states and 1560 transitions. [2020-11-09 15:38:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:38:02,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-11-09 15:38:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:02,874 INFO L225 Difference]: With dead ends: 518 [2020-11-09 15:38:02,874 INFO L226 Difference]: Without dead ends: 422 [2020-11-09 15:38:02,874 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 15:38:02,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2020-11-09 15:38:02,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 382. [2020-11-09 15:38:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 382 states. [2020-11-09 15:38:02,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 1156 transitions. [2020-11-09 15:38:02,891 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 1156 transitions. Word has length 12 [2020-11-09 15:38:02,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:02,895 INFO L481 AbstractCegarLoop]: Abstraction has 382 states and 1156 transitions. [2020-11-09 15:38:02,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:38:02,895 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 1156 transitions. [2020-11-09 15:38:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-09 15:38:02,904 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:02,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:02,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-09 15:38:02,905 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:02,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:02,908 INFO L82 PathProgramCache]: Analyzing trace with hash 1393155433, now seen corresponding path program 1 times [2020-11-09 15:38:02,910 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:02,911 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325566578] [2020-11-09 15:38:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:02,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:03,008 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 15:38:03,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325566578] [2020-11-09 15:38:03,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:03,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-09 15:38:03,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [904843080] [2020-11-09 15:38:03,009 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:03,011 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:03,016 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 37 transitions. [2020-11-09 15:38:03,016 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:03,114 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:03,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:38:03,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:03,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:38:03,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:38:03,116 INFO L87 Difference]: Start difference. First operand 382 states and 1156 transitions. Second operand 3 states. [2020-11-09 15:38:03,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:03,132 INFO L93 Difference]: Finished difference Result 370 states and 1112 transitions. [2020-11-09 15:38:03,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:38:03,133 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-11-09 15:38:03,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:03,137 INFO L225 Difference]: With dead ends: 370 [2020-11-09 15:38:03,138 INFO L226 Difference]: Without dead ends: 370 [2020-11-09 15:38:03,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 15:38:03,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-11-09 15:38:03,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 370. [2020-11-09 15:38:03,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-11-09 15:38:03,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 1112 transitions. [2020-11-09 15:38:03,154 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 1112 transitions. Word has length 13 [2020-11-09 15:38:03,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:03,154 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 1112 transitions. [2020-11-09 15:38:03,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:38:03,154 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 1112 transitions. [2020-11-09 15:38:03,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:38:03,156 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:03,156 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:03,156 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-09 15:38:03,156 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:03,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:03,157 INFO L82 PathProgramCache]: Analyzing trace with hash 1625881232, now seen corresponding path program 1 times [2020-11-09 15:38:03,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:03,159 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188114133] [2020-11-09 15:38:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:03,254 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 15:38:03,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188114133] [2020-11-09 15:38:03,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:03,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:38:03,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [295468968] [2020-11-09 15:38:03,256 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:03,259 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:03,265 INFO L252 McrAutomatonBuilder]: Finished intersection with 31 states and 50 transitions. [2020-11-09 15:38:03,265 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:03,402 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:03,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-09 15:38:03,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:03,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-09 15:38:03,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-09 15:38:03,404 INFO L87 Difference]: Start difference. First operand 370 states and 1112 transitions. Second operand 4 states. [2020-11-09 15:38:03,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:03,445 INFO L93 Difference]: Finished difference Result 530 states and 1522 transitions. [2020-11-09 15:38:03,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-09 15:38:03,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-09 15:38:03,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:03,448 INFO L225 Difference]: With dead ends: 530 [2020-11-09 15:38:03,449 INFO L226 Difference]: Without dead ends: 278 [2020-11-09 15:38:03,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 15:38:03,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-11-09 15:38:03,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 254. [2020-11-09 15:38:03,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-11-09 15:38:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 707 transitions. [2020-11-09 15:38:03,461 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 707 transitions. Word has length 14 [2020-11-09 15:38:03,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:03,461 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 707 transitions. [2020-11-09 15:38:03,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-09 15:38:03,461 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 707 transitions. [2020-11-09 15:38:03,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-09 15:38:03,462 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:03,463 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:03,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-09 15:38:03,463 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:03,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:03,464 INFO L82 PathProgramCache]: Analyzing trace with hash 238144508, now seen corresponding path program 2 times [2020-11-09 15:38:03,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:03,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041340772] [2020-11-09 15:38:03,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:03,604 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 15:38:03,605 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041340772] [2020-11-09 15:38:03,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:03,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:38:03,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [404471015] [2020-11-09 15:38:03,606 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:03,609 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:03,615 INFO L252 McrAutomatonBuilder]: Finished intersection with 33 states and 54 transitions. [2020-11-09 15:38:03,615 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:03,640 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:03,668 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:03,682 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:03,711 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:03,721 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:03,740 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:03,772 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:03,780 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:03,798 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [8239#(not (= 4 ~__unbuffered_cnt~0))] [2020-11-09 15:38:03,798 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-09 15:38:03,798 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:03,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-09 15:38:03,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-09 15:38:03,799 INFO L87 Difference]: Start difference. First operand 254 states and 707 transitions. Second operand 5 states. [2020-11-09 15:38:03,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:03,950 INFO L93 Difference]: Finished difference Result 263 states and 659 transitions. [2020-11-09 15:38:03,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:38:03,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-11-09 15:38:03,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:03,953 INFO L225 Difference]: With dead ends: 263 [2020-11-09 15:38:03,955 INFO L226 Difference]: Without dead ends: 178 [2020-11-09 15:38:03,955 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 15:38:03,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-11-09 15:38:03,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2020-11-09 15:38:03,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-11-09 15:38:03,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 414 transitions. [2020-11-09 15:38:03,962 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 414 transitions. Word has length 14 [2020-11-09 15:38:03,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:03,963 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 414 transitions. [2020-11-09 15:38:03,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-09 15:38:03,963 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 414 transitions. [2020-11-09 15:38:03,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-09 15:38:03,964 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:03,964 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-09 15:38:03,964 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-09 15:38:03,964 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:03,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:03,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1046603743, now seen corresponding path program 1 times [2020-11-09 15:38:03,967 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:03,967 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180650380] [2020-11-09 15:38:03,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:04,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:04,107 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 15:38:04,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180650380] [2020-11-09 15:38:04,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:04,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-09 15:38:04,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [573504428] [2020-11-09 15:38:04,108 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:04,113 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:04,122 INFO L252 McrAutomatonBuilder]: Finished intersection with 38 states and 62 transitions. [2020-11-09 15:38:04,122 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:04,137 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:04,190 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:04,220 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:04,319 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:04,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-09 15:38:04,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:04,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-09 15:38:04,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-09 15:38:04,321 INFO L87 Difference]: Start difference. First operand 178 states and 414 transitions. Second operand 6 states. [2020-11-09 15:38:04,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:04,431 INFO L93 Difference]: Finished difference Result 171 states and 376 transitions. [2020-11-09 15:38:04,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-09 15:38:04,432 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-09 15:38:04,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:04,433 INFO L225 Difference]: With dead ends: 171 [2020-11-09 15:38:04,433 INFO L226 Difference]: Without dead ends: 137 [2020-11-09 15:38:04,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:38:04,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-11-09 15:38:04,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-11-09 15:38:04,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-11-09 15:38:04,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 301 transitions. [2020-11-09 15:38:04,439 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 301 transitions. Word has length 16 [2020-11-09 15:38:04,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:04,439 INFO L481 AbstractCegarLoop]: Abstraction has 137 states and 301 transitions. [2020-11-09 15:38:04,439 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-09 15:38:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 301 transitions. [2020-11-09 15:38:04,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-09 15:38:04,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:04,440 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 15:38:04,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-09 15:38:04,440 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:04,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:04,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1563997083, now seen corresponding path program 1 times [2020-11-09 15:38:04,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:04,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706456274] [2020-11-09 15:38:04,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:04,541 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 15:38:04,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706456274] [2020-11-09 15:38:04,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:04,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-09 15:38:04,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [952975526] [2020-11-09 15:38:04,542 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:04,545 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:04,553 INFO L252 McrAutomatonBuilder]: Finished intersection with 43 states and 66 transitions. [2020-11-09 15:38:04,553 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:04,580 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-09 15:38:04,600 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:04,600 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-09 15:38:04,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:04,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-09 15:38:04,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-09 15:38:04,602 INFO L87 Difference]: Start difference. First operand 137 states and 301 transitions. Second operand 7 states. [2020-11-09 15:38:04,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:04,772 INFO L93 Difference]: Finished difference Result 132 states and 289 transitions. [2020-11-09 15:38:04,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-09 15:38:04,773 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-11-09 15:38:04,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:04,775 INFO L225 Difference]: With dead ends: 132 [2020-11-09 15:38:04,775 INFO L226 Difference]: Without dead ends: 51 [2020-11-09 15:38:04,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 1 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 15:38:04,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-11-09 15:38:04,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-11-09 15:38:04,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-11-09 15:38:04,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 97 transitions. [2020-11-09 15:38:04,778 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 97 transitions. Word has length 18 [2020-11-09 15:38:04,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:04,779 INFO L481 AbstractCegarLoop]: Abstraction has 51 states and 97 transitions. [2020-11-09 15:38:04,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-09 15:38:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 97 transitions. [2020-11-09 15:38:04,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-11-09 15:38:04,779 INFO L414 BasicCegarLoop]: Found error trace [2020-11-09 15:38:04,779 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 15:38:04,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-09 15:38:04,780 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-09 15:38:04,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-09 15:38:04,780 INFO L82 PathProgramCache]: Analyzing trace with hash -299924038, now seen corresponding path program 1 times [2020-11-09 15:38:04,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-09 15:38:04,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904679675] [2020-11-09 15:38:04,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-09 15:38:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-09 15:38:04,830 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 15:38:04,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904679675] [2020-11-09 15:38:04,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-09 15:38:04,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-09 15:38:04,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1460740204] [2020-11-09 15:38:04,831 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-11-09 15:38:04,834 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-11-09 15:38:04,843 INFO L252 McrAutomatonBuilder]: Finished intersection with 52 states and 80 transitions. [2020-11-09 15:38:04,843 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-11-09 15:38:04,852 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-11-09 15:38:04,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-09 15:38:04,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-09 15:38:04,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-09 15:38:04,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-09 15:38:04,854 INFO L87 Difference]: Start difference. First operand 51 states and 97 transitions. Second operand 3 states. [2020-11-09 15:38:04,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-09 15:38:04,864 INFO L93 Difference]: Finished difference Result 50 states and 96 transitions. [2020-11-09 15:38:04,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-09 15:38:04,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2020-11-09 15:38:04,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-09 15:38:04,866 INFO L225 Difference]: With dead ends: 50 [2020-11-09 15:38:04,866 INFO L226 Difference]: Without dead ends: 0 [2020-11-09 15:38:04,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 15:38:04,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-09 15:38:04,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-09 15:38:04,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-09 15:38:04,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-09 15:38:04,867 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2020-11-09 15:38:04,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-09 15:38:04,867 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-09 15:38:04,867 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-09 15:38:04,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-09 15:38:04,868 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-09 15:38:04,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-09 15:38:04,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 03:38:04 BasicIcfg [2020-11-09 15:38:04,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-09 15:38:04,876 INFO L168 Benchmark]: Toolchain (without parser) took 13063.49 ms. Allocated memory was 167.8 MB in the beginning and 242.2 MB in the end (delta: 74.4 MB). Free memory was 141.8 MB in the beginning and 197.6 MB in the end (delta: -55.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:04,877 INFO L168 Benchmark]: CDTParser took 0.78 ms. Allocated memory is still 167.8 MB. Free memory is still 140.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:38:04,877 INFO L168 Benchmark]: CACSL2BoogieTranslator took 861.08 ms. Allocated memory is still 167.8 MB. Free memory was 141.0 MB in the beginning and 144.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:04,878 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 167.8 MB. Free memory was 144.4 MB in the beginning and 142.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:04,883 INFO L168 Benchmark]: Boogie Preprocessor took 32.81 ms. Allocated memory is still 167.8 MB. Free memory was 142.9 MB in the beginning and 141.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:04,886 INFO L168 Benchmark]: RCFGBuilder took 606.15 ms. Allocated memory is still 167.8 MB. Free memory was 141.3 MB in the beginning and 117.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2020-11-09 15:38:04,887 INFO L168 Benchmark]: TraceAbstraction took 11493.60 ms. Allocated memory was 167.8 MB in the beginning and 242.2 MB in the end (delta: 74.4 MB). Free memory was 116.7 MB in the beginning and 197.6 MB in the end (delta: -81.0 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-09 15:38:04,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78 ms. Allocated memory is still 167.8 MB. Free memory is still 140.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 861.08 ms. Allocated memory is still 167.8 MB. Free memory was 141.0 MB in the beginning and 144.4 MB in the end (delta: -3.5 MB). Peak memory consumption was 31.3 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 53.69 ms. Allocated memory is still 167.8 MB. Free memory was 144.4 MB in the beginning and 142.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.81 ms. Allocated memory is still 167.8 MB. Free memory was 142.9 MB in the beginning and 141.3 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 606.15 ms. Allocated memory is still 167.8 MB. Free memory was 141.3 MB in the beginning and 117.2 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 11493.60 ms. Allocated memory was 167.8 MB in the beginning and 242.2 MB in the end (delta: 74.4 MB). Free memory was 116.7 MB in the beginning and 197.6 MB in the end (delta: -81.0 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1132 VarBasedMoverChecksPositive, 41 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 64 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 8.1s, 99 PlacesBefore, 38 PlacesAfterwards, 89 TransitionsBefore, 26 TransitionsAfterwards, 2042 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 49 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 14 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 4334 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, 87 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.2s, HoareTripleCheckerStatistics: 183 SDtfs, 153 SDslu, 248 SDs, 0 SdLazy, 152 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 89 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s 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, 64 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 5161 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...