/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 17:11:19,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 17:11:19,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 17:11:19,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 17:11:19,092 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 17:11:19,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 17:11:19,094 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 17:11:19,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 17:11:19,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 17:11:19,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 17:11:19,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 17:11:19,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 17:11:19,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 17:11:19,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 17:11:19,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 17:11:19,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 17:11:19,116 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-08-21 17:11:19,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-21 17:11:19,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-21 17:11:19,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-21 17:11:19,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-21 17:11:19,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-21 17:11:19,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-21 17:11:19,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-21 17:11:19,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-21 17:11:19,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 17:11:19,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 17:11:19,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 17:11:19,128 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf [2021-08-21 17:11:19,152 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 17:11:19,152 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 17:11:19,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 17:11:19,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 17:11:19,156 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 17:11:19,156 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 17:11:19,156 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 17:11:19,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 17:11:19,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 17:11:19,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 17:11:19,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 17:11:19,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 17:11:19,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 17:11:19,157 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 17:11:19,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 17:11:19,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 17:11:19,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 17:11:19,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 17:11:19,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 17:11:19,158 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 17:11:19,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 17:11:19,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:11:19,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 17:11:19,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 17:11:19,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 17:11:19,159 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 17:11:19,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 17:11:19,159 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 17:11:19,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 17:11:19,159 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 17:11:19,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 17:11:19,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 17:11:19,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 17:11:19,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 17:11:19,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 17:11:19,402 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 17:11:19,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-08-21 17:11:19,446 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c7d2892/1c8365aad59d4c81bb4b14a40ea02fec/FLAGeb80bf8c1 [2021-08-21 17:11:19,885 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 17:11:19,886 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i [2021-08-21 17:11:19,896 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c7d2892/1c8365aad59d4c81bb4b14a40ea02fec/FLAGeb80bf8c1 [2021-08-21 17:11:19,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94c7d2892/1c8365aad59d4c81bb4b14a40ea02fec [2021-08-21 17:11:19,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 17:11:19,913 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 17:11:19,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 17:11:19,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 17:11:19,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 17:11:19,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:11:19" (1/1) ... [2021-08-21 17:11:19,919 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@492097d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:19, skipping insertion in model container [2021-08-21 17:11:19,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:11:19" (1/1) ... [2021-08-21 17:11:19,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 17:11:19,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 17:11:20,103 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-08-21 17:11:20,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:11:20,226 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 17:11:20,233 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe027_tso.oepc.i[950,963] [2021-08-21 17:11:20,251 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:11:20,273 INFO L208 MainTranslator]: Completed translation [2021-08-21 17:11:20,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20 WrapperNode [2021-08-21 17:11:20,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 17:11:20,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 17:11:20,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 17:11:20,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 17:11:20,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,287 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,301 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 17:11:20,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 17:11:20,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 17:11:20,302 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 17:11:20,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,322 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,325 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 17:11:20,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 17:11:20,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 17:11:20,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 17:11:20,338 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (1/1) ... [2021-08-21 17:11:20,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:11:20,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 17:11:20,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 17:11:20,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 17:11:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 17:11:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 17:11:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 17:11:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 17:11:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 17:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 17:11:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 17:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 17:11:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 17:11:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 17:11:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-08-21 17:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-08-21 17:11:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 17:11:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 17:11:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 17:11:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 17:11:20,392 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 17:11:20,728 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 17:11:20,728 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 17:11:20,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:11:20 BoogieIcfgContainer [2021-08-21 17:11:20,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 17:11:20,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 17:11:20,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 17:11:20,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 17:11:20,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:11:19" (1/3) ... [2021-08-21 17:11:20,734 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da3bd9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:11:20, skipping insertion in model container [2021-08-21 17:11:20,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:20" (2/3) ... [2021-08-21 17:11:20,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4da3bd9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:11:20, skipping insertion in model container [2021-08-21 17:11:20,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:11:20" (3/3) ... [2021-08-21 17:11:20,736 INFO L111 eAbstractionObserver]: Analyzing ICFG safe027_tso.oepc.i [2021-08-21 17:11:20,741 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 17:11:20,741 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 17:11:20,741 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 17:11:20,741 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 17:11:20,778 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,779 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,779 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,780 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,780 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,780 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,780 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,781 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,781 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,782 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,783 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,783 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,784 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,785 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,785 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,785 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,785 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,785 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,785 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,785 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,786 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,786 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,787 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,789 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,789 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,789 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,789 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,794 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,794 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,794 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,796 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,797 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,797 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,797 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,814 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,814 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,817 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,817 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:20,819 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 17:11:20,846 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 17:11:20,850 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 17:11:20,851 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-21 17:11:22,547 INFO L276 IsEmpty]: Start isEmpty. Operand has 28884 states, 24124 states have (on average 2.1248963687613993) internal successors, (51261), 28883 states have internal predecessors, (51261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-08-21 17:11:22,596 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:22,597 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:22,598 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:22,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:22,604 INFO L82 PathProgramCache]: Analyzing trace with hash -368205386, now seen corresponding path program 1 times [2021-08-21 17:11:22,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:22,610 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655663851] [2021-08-21 17:11:22,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:22,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:23,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:23,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:23,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655663851] [2021-08-21 17:11:23,084 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655663851] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:23,084 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:23,084 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:23,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273749459] [2021-08-21 17:11:23,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:23,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:23,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:23,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:23,140 INFO L87 Difference]: Start difference. First operand has 28884 states, 24124 states have (on average 2.1248963687613993) internal successors, (51261), 28883 states have internal predecessors, (51261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:23,586 INFO L93 Difference]: Finished difference Result 32916 states and 59223 transitions. [2021-08-21 17:11:23,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:23,588 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2021-08-21 17:11:23,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:23,665 INFO L225 Difference]: With dead ends: 32916 [2021-08-21 17:11:23,666 INFO L226 Difference]: Without dead ends: 11410 [2021-08-21 17:11:23,667 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 75.9ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-21 17:11:23,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11410 states. [2021-08-21 17:11:23,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11410 to 11410. [2021-08-21 17:11:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11410 states, 11200 states have (on average 2.380089285714286) internal successors, (26657), 11409 states have internal predecessors, (26657), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:24,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11410 states to 11410 states and 26657 transitions. [2021-08-21 17:11:24,051 INFO L78 Accepts]: Start accepts. Automaton has 11410 states and 26657 transitions. Word has length 57 [2021-08-21 17:11:24,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:24,052 INFO L470 AbstractCegarLoop]: Abstraction has 11410 states and 26657 transitions. [2021-08-21 17:11:24,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:24,052 INFO L276 IsEmpty]: Start isEmpty. Operand 11410 states and 26657 transitions. [2021-08-21 17:11:24,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-21 17:11:24,064 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:24,064 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:24,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 17:11:24,064 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:24,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:24,066 INFO L82 PathProgramCache]: Analyzing trace with hash -995243369, now seen corresponding path program 1 times [2021-08-21 17:11:24,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:24,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446749385] [2021-08-21 17:11:24,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:24,067 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:24,228 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:24,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446749385] [2021-08-21 17:11:24,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446749385] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:24,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:24,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:24,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60950661] [2021-08-21 17:11:24,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:24,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:24,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:24,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:24,231 INFO L87 Difference]: Start difference. First operand 11410 states and 26657 transitions. Second operand has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:24,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:24,612 INFO L93 Difference]: Finished difference Result 15818 states and 38196 transitions. [2021-08-21 17:11:24,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-21 17:11:24,613 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2021-08-21 17:11:24,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:24,659 INFO L225 Difference]: With dead ends: 15818 [2021-08-21 17:11:24,659 INFO L226 Difference]: Without dead ends: 11726 [2021-08-21 17:11:24,660 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 175.6ms TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-08-21 17:11:24,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11726 states. [2021-08-21 17:11:24,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11726 to 11726. [2021-08-21 17:11:24,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11726 states, 11520 states have (on average 2.368142361111111) internal successors, (27281), 11725 states have internal predecessors, (27281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:25,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11726 states to 11726 states and 27281 transitions. [2021-08-21 17:11:25,051 INFO L78 Accepts]: Start accepts. Automaton has 11726 states and 27281 transitions. Word has length 59 [2021-08-21 17:11:25,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:25,051 INFO L470 AbstractCegarLoop]: Abstraction has 11726 states and 27281 transitions. [2021-08-21 17:11:25,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.428571428571429) internal successors, (59), 7 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:25,051 INFO L276 IsEmpty]: Start isEmpty. Operand 11726 states and 27281 transitions. [2021-08-21 17:11:25,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-21 17:11:25,060 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:25,061 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:25,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 17:11:25,061 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:25,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:25,062 INFO L82 PathProgramCache]: Analyzing trace with hash 711776996, now seen corresponding path program 1 times [2021-08-21 17:11:25,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:25,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761667201] [2021-08-21 17:11:25,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:25,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:25,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:25,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:25,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:25,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761667201] [2021-08-21 17:11:25,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1761667201] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:25,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:25,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:25,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55254050] [2021-08-21 17:11:25,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:25,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:25,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:25,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:25,189 INFO L87 Difference]: Start difference. First operand 11726 states and 27281 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:25,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:25,324 INFO L93 Difference]: Finished difference Result 13406 states and 32097 transitions. [2021-08-21 17:11:25,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:11:25,325 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-08-21 17:11:25,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:25,352 INFO L225 Difference]: With dead ends: 13406 [2021-08-21 17:11:25,352 INFO L226 Difference]: Without dead ends: 9256 [2021-08-21 17:11:25,352 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 79.3ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-08-21 17:11:25,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9256 states. [2021-08-21 17:11:25,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9256 to 9184. [2021-08-21 17:11:25,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9184 states, 9034 states have (on average 2.4236218729245076) internal successors, (21895), 9183 states have internal predecessors, (21895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:25,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9184 states to 9184 states and 21895 transitions. [2021-08-21 17:11:25,597 INFO L78 Accepts]: Start accepts. Automaton has 9184 states and 21895 transitions. Word has length 60 [2021-08-21 17:11:25,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:25,597 INFO L470 AbstractCegarLoop]: Abstraction has 9184 states and 21895 transitions. [2021-08-21 17:11:25,597 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 7 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 9184 states and 21895 transitions. [2021-08-21 17:11:25,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-08-21 17:11:25,607 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:25,607 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:25,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 17:11:25,608 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:25,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:25,608 INFO L82 PathProgramCache]: Analyzing trace with hash -110727229, now seen corresponding path program 1 times [2021-08-21 17:11:25,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:25,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126811254] [2021-08-21 17:11:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:25,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:25,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:25,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:25,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126811254] [2021-08-21 17:11:25,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126811254] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:25,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:25,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 17:11:25,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094685082] [2021-08-21 17:11:25,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 17:11:25,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:25,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 17:11:25,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:11:25,736 INFO L87 Difference]: Start difference. First operand 9184 states and 21895 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:25,889 INFO L93 Difference]: Finished difference Result 11734 states and 30461 transitions. [2021-08-21 17:11:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:25,890 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-08-21 17:11:25,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:25,905 INFO L225 Difference]: With dead ends: 11734 [2021-08-21 17:11:25,905 INFO L226 Difference]: Without dead ends: 4774 [2021-08-21 17:11:25,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 100.4ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:25,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4774 states. [2021-08-21 17:11:26,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4774 to 4774. [2021-08-21 17:11:26,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4774 states, 4624 states have (on average 2.9167387543252596) internal successors, (13487), 4773 states have internal predecessors, (13487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4774 states to 4774 states and 13487 transitions. [2021-08-21 17:11:26,065 INFO L78 Accepts]: Start accepts. Automaton has 4774 states and 13487 transitions. Word has length 62 [2021-08-21 17:11:26,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:26,065 INFO L470 AbstractCegarLoop]: Abstraction has 4774 states and 13487 transitions. [2021-08-21 17:11:26,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,066 INFO L276 IsEmpty]: Start isEmpty. Operand 4774 states and 13487 transitions. [2021-08-21 17:11:26,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-08-21 17:11:26,073 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:26,073 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:26,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 17:11:26,074 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:26,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:26,074 INFO L82 PathProgramCache]: Analyzing trace with hash -1007514571, now seen corresponding path program 1 times [2021-08-21 17:11:26,074 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:26,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382474133] [2021-08-21 17:11:26,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:26,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:26,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:26,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:26,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382474133] [2021-08-21 17:11:26,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382474133] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:26,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:26,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:26,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427128721] [2021-08-21 17:11:26,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:26,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:26,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:26,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:26,162 INFO L87 Difference]: Start difference. First operand 4774 states and 13487 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:26,277 INFO L93 Difference]: Finished difference Result 6834 states and 20010 transitions. [2021-08-21 17:11:26,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:26,277 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2021-08-21 17:11:26,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:26,287 INFO L225 Difference]: With dead ends: 6834 [2021-08-21 17:11:26,287 INFO L226 Difference]: Without dead ends: 3288 [2021-08-21 17:11:26,288 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 77.6ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-08-21 17:11:26,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3288 states. [2021-08-21 17:11:26,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3288 to 3288. [2021-08-21 17:11:26,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3288 states, 3188 states have (on average 2.998431618569636) internal successors, (9559), 3287 states have internal predecessors, (9559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3288 states to 3288 states and 9559 transitions. [2021-08-21 17:11:26,353 INFO L78 Accepts]: Start accepts. Automaton has 3288 states and 9559 transitions. Word has length 63 [2021-08-21 17:11:26,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:26,354 INFO L470 AbstractCegarLoop]: Abstraction has 3288 states and 9559 transitions. [2021-08-21 17:11:26,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3288 states and 9559 transitions. [2021-08-21 17:11:26,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-21 17:11:26,360 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:26,360 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:26,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 17:11:26,360 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:26,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:26,360 INFO L82 PathProgramCache]: Analyzing trace with hash -2005893868, now seen corresponding path program 1 times [2021-08-21 17:11:26,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:26,361 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760720091] [2021-08-21 17:11:26,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:26,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:26,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:26,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760720091] [2021-08-21 17:11:26,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760720091] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:26,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:26,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 17:11:26,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105710318] [2021-08-21 17:11:26,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 17:11:26,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:26,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 17:11:26,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 17:11:26,456 INFO L87 Difference]: Start difference. First operand 3288 states and 9559 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:26,547 INFO L93 Difference]: Finished difference Result 4372 states and 12521 transitions. [2021-08-21 17:11:26,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:11:26,548 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-08-21 17:11:26,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:26,557 INFO L225 Difference]: With dead ends: 4372 [2021-08-21 17:11:26,557 INFO L226 Difference]: Without dead ends: 3144 [2021-08-21 17:11:26,557 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:26,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3144 states. [2021-08-21 17:11:26,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3144 to 3144. [2021-08-21 17:11:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 3044 states have (on average 3.0272667542706966) internal successors, (9215), 3143 states have internal predecessors, (9215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 9215 transitions. [2021-08-21 17:11:26,623 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 9215 transitions. Word has length 65 [2021-08-21 17:11:26,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:26,623 INFO L470 AbstractCegarLoop]: Abstraction has 3144 states and 9215 transitions. [2021-08-21 17:11:26,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 9215 transitions. [2021-08-21 17:11:26,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-08-21 17:11:26,627 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:26,627 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:26,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 17:11:26,627 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:26,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:26,628 INFO L82 PathProgramCache]: Analyzing trace with hash 488378848, now seen corresponding path program 1 times [2021-08-21 17:11:26,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:26,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470333965] [2021-08-21 17:11:26,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:26,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:26,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:26,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:26,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470333965] [2021-08-21 17:11:26,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [470333965] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:26,696 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:26,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:26,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767391770] [2021-08-21 17:11:26,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:26,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:26,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:26,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:26,698 INFO L87 Difference]: Start difference. First operand 3144 states and 9215 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:26,809 INFO L93 Difference]: Finished difference Result 3705 states and 10633 transitions. [2021-08-21 17:11:26,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:26,809 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-08-21 17:11:26,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:26,816 INFO L225 Difference]: With dead ends: 3705 [2021-08-21 17:11:26,816 INFO L226 Difference]: Without dead ends: 2569 [2021-08-21 17:11:26,816 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 67.8ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-21 17:11:26,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2569 states. [2021-08-21 17:11:26,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2569 to 2569. [2021-08-21 17:11:26,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2569 states, 2473 states have (on average 3.028710068742418) internal successors, (7490), 2568 states have internal predecessors, (7490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 7490 transitions. [2021-08-21 17:11:26,861 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 7490 transitions. Word has length 66 [2021-08-21 17:11:26,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:26,861 INFO L470 AbstractCegarLoop]: Abstraction has 2569 states and 7490 transitions. [2021-08-21 17:11:26,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:26,862 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 7490 transitions. [2021-08-21 17:11:26,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-08-21 17:11:26,865 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:26,865 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:26,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 17:11:26,865 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:26,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:26,865 INFO L82 PathProgramCache]: Analyzing trace with hash 796927355, now seen corresponding path program 1 times [2021-08-21 17:11:26,866 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:26,866 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284587329] [2021-08-21 17:11:26,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:26,866 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:26,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:26,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:26,938 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:26,938 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284587329] [2021-08-21 17:11:26,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284587329] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:26,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:26,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 17:11:26,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036457148] [2021-08-21 17:11:26,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 17:11:26,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:26,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 17:11:26,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:11:26,939 INFO L87 Difference]: Start difference. First operand 2569 states and 7490 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:27,058 INFO L93 Difference]: Finished difference Result 2398 states and 6651 transitions. [2021-08-21 17:11:27,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 17:11:27,059 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2021-08-21 17:11:27,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:27,062 INFO L225 Difference]: With dead ends: 2398 [2021-08-21 17:11:27,062 INFO L226 Difference]: Without dead ends: 1558 [2021-08-21 17:11:27,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 81.1ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:27,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1558 states. [2021-08-21 17:11:27,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1558 to 1558. [2021-08-21 17:11:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1486 states have (on average 2.833109017496635) internal successors, (4210), 1557 states have internal predecessors, (4210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 4210 transitions. [2021-08-21 17:11:27,088 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 4210 transitions. Word has length 67 [2021-08-21 17:11:27,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:27,089 INFO L470 AbstractCegarLoop]: Abstraction has 1558 states and 4210 transitions. [2021-08-21 17:11:27,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,089 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 4210 transitions. [2021-08-21 17:11:27,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-08-21 17:11:27,091 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:27,091 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:27,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 17:11:27,091 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:27,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:27,092 INFO L82 PathProgramCache]: Analyzing trace with hash 567104634, now seen corresponding path program 1 times [2021-08-21 17:11:27,092 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:27,092 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445011385] [2021-08-21 17:11:27,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:27,092 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:27,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:27,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:27,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445011385] [2021-08-21 17:11:27,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445011385] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:27,175 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:27,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-21 17:11:27,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797478236] [2021-08-21 17:11:27,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-21 17:11:27,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:27,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-21 17:11:27,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-08-21 17:11:27,176 INFO L87 Difference]: Start difference. First operand 1558 states and 4210 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:27,381 INFO L93 Difference]: Finished difference Result 1072 states and 2685 transitions. [2021-08-21 17:11:27,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-21 17:11:27,382 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2021-08-21 17:11:27,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:27,383 INFO L225 Difference]: With dead ends: 1072 [2021-08-21 17:11:27,383 INFO L226 Difference]: Without dead ends: 631 [2021-08-21 17:11:27,383 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 131.6ms TimeCoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2021-08-21 17:11:27,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states. [2021-08-21 17:11:27,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 631. [2021-08-21 17:11:27,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 604 states have (on average 2.3427152317880795) internal successors, (1415), 630 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1415 transitions. [2021-08-21 17:11:27,392 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1415 transitions. Word has length 69 [2021-08-21 17:11:27,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:27,392 INFO L470 AbstractCegarLoop]: Abstraction has 631 states and 1415 transitions. [2021-08-21 17:11:27,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,392 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1415 transitions. [2021-08-21 17:11:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-21 17:11:27,393 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:27,393 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:27,393 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-21 17:11:27,394 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:27,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:27,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1611891141, now seen corresponding path program 1 times [2021-08-21 17:11:27,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:27,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221698642] [2021-08-21 17:11:27,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:27,396 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:27,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:27,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:27,492 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221698642] [2021-08-21 17:11:27,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221698642] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:27,492 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:27,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:27,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656969932] [2021-08-21 17:11:27,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:27,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:27,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:27,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:27,493 INFO L87 Difference]: Start difference. First operand 631 states and 1415 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:27,581 INFO L93 Difference]: Finished difference Result 997 states and 2395 transitions. [2021-08-21 17:11:27,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 17:11:27,581 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-08-21 17:11:27,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:27,582 INFO L225 Difference]: With dead ends: 997 [2021-08-21 17:11:27,583 INFO L226 Difference]: Without dead ends: 599 [2021-08-21 17:11:27,583 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 83.8ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:27,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2021-08-21 17:11:27,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 567. [2021-08-21 17:11:27,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 540 states have (on average 2.412962962962963) internal successors, (1303), 566 states have internal predecessors, (1303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 1303 transitions. [2021-08-21 17:11:27,591 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 1303 transitions. Word has length 71 [2021-08-21 17:11:27,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:27,591 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 1303 transitions. [2021-08-21 17:11:27,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 1303 transitions. [2021-08-21 17:11:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-08-21 17:11:27,592 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:27,592 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 17:11:27,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-21 17:11:27,593 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-21 17:11:27,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:27,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1848623557, now seen corresponding path program 2 times [2021-08-21 17:11:27,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:27,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869881414] [2021-08-21 17:11:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:27,593 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 17:11:27,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:27,670 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869881414] [2021-08-21 17:11:27,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869881414] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:27,670 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:27,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:27,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690443028] [2021-08-21 17:11:27,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:27,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:27,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:27,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:27,671 INFO L87 Difference]: Start difference. First operand 567 states and 1303 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:27,748 INFO L93 Difference]: Finished difference Result 459 states and 1087 transitions. [2021-08-21 17:11:27,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 17:11:27,748 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2021-08-21 17:11:27,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:27,749 INFO L225 Difference]: With dead ends: 459 [2021-08-21 17:11:27,749 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 17:11:27,749 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 81.5ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:27,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 17:11:27,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 17:11:27,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 17:11:27,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2021-08-21 17:11:27,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:27,750 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 17:11:27,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 17:11:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 17:11:27,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 17:11:27,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:11:27,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 17:11:27,753 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 17:11:27,753 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 17:11:27,753 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 17:11:27,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-21 17:11:27,755 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 17:11:27,756 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 17:11:27,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:11:27 BasicIcfg [2021-08-21 17:11:27,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 17:11:27,758 INFO L168 Benchmark]: Toolchain (without parser) took 7844.58 ms. Allocated memory was 212.9 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 176.0 MB in the beginning and 412.9 MB in the end (delta: -236.9 MB). Peak memory consumption was 800.2 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:27,758 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 212.9 MB. Free memory was 194.0 MB in the beginning and 193.9 MB in the end (delta: 82.7 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:11:27,758 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.46 ms. Allocated memory is still 212.9 MB. Free memory was 175.9 MB in the beginning and 185.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:27,758 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.68 ms. Allocated memory is still 212.9 MB. Free memory was 185.6 MB in the beginning and 183.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:27,759 INFO L168 Benchmark]: Boogie Preprocessor took 27.02 ms. Allocated memory is still 212.9 MB. Free memory was 183.6 MB in the beginning and 182.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:27,759 INFO L168 Benchmark]: RCFGBuilder took 400.82 ms. Allocated memory is still 212.9 MB. Free memory was 182.0 MB in the beginning and 155.3 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:27,759 INFO L168 Benchmark]: TraceAbstraction took 7025.23 ms. Allocated memory was 212.9 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 154.8 MB in the beginning and 412.9 MB in the end (delta: -258.2 MB). Peak memory consumption was 779.4 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:27,760 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 212.9 MB. Free memory was 194.0 MB in the beginning and 193.9 MB in the end (delta: 82.7 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 358.46 ms. Allocated memory is still 212.9 MB. Free memory was 175.9 MB in the beginning and 185.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.68 ms. Allocated memory is still 212.9 MB. Free memory was 185.6 MB in the beginning and 183.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 27.02 ms. Allocated memory is still 212.9 MB. Free memory was 183.6 MB in the beginning and 182.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 400.82 ms. Allocated memory is still 212.9 MB. Free memory was 182.0 MB in the beginning and 155.3 MB in the end (delta: 26.7 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 7025.23 ms. Allocated memory was 212.9 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 154.8 MB in the beginning and 412.9 MB in the end (delta: -258.2 MB). Peak memory consumption was 779.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 132501, positive: 129258, positive conditional: 129258, positive unconditional: 0, negative: 3243, negative conditional: 3243, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 132051, positive: 129258, positive conditional: 0, positive unconditional: 129258, negative: 2793, negative conditional: 0, negative unconditional: 2793, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 984, positive: 963, positive conditional: 0, positive unconditional: 963, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 984, positive: 956, positive conditional: 0, positive unconditional: 956, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 28, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 57, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 132051, positive: 128295, positive conditional: 0, positive unconditional: 128295, negative: 2772, negative conditional: 0, negative unconditional: 2772, unknown: 984, unknown conditional: 0, unknown unconditional: 984] , Statistics on independence cache: Total cache size (in pairs): 984, Positive cache size: 963, Positive conditional cache size: 0, Positive unconditional cache size: 963, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Independence queries for same thread: 450 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 128 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 6909.7ms, OverallIterations: 11, TraceHistogramMax: 1, EmptinessCheckTime: 202.7ms, AutomataDifference: 2186.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1595.7ms, PartialOrderReductionTime: 1584.9ms, HoareTripleCheckerStatistics: 1228 SDtfs, 1975 SDslu, 4087 SDs, 0 SdLazy, 576 SolverSat, 119 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 363.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1005.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=28884occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1385.8ms AutomataMinimizationTime, 11 MinimizatonAttempts, 104 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 30.2ms SsaConstructionTime, 271.4ms SatisfiabilityAnalysisTime, 1062.4ms InterpolantComputationTime, 710 NumberOfCodeBlocks, 710 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 699 ConstructedInterpolants, 0 QuantifiedInterpolants, 2713 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 17:11:27,785 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...