/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/safe026_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 17:11:12,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 17:11:12,893 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 17:11:12,931 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-21 17:11:12,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-21 17:11:12,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-21 17:11:12,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-21 17:11:12,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-21 17:11:12,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-21 17:11:12,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-21 17:11:12,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-21 17:11:12,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-21 17:11:12,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-21 17:11:12,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-21 17:11:12,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-21 17:11:12,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-21 17:11:12,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-21 17:11:12,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-21 17:11:12,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-21 17:11:12,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-21 17:11:12,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-21 17:11:12,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-21 17:11:12,977 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-21 17:11:12,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-21 17:11:12,985 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-21 17:11:12,986 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-21 17:11:12,986 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-21 17:11:12,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-21 17:11:12,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-21 17:11:12,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-21 17:11:12,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-21 17:11:12,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-21 17:11:12,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-21 17:11:12,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-21 17:11:12,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-21 17:11:12,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-21 17:11:12,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-21 17:11:12,994 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-21 17:11:12,994 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 17:11:12,995 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 17:11:12,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 17:11:12,996 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 17:11:13,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 17:11:13,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 17:11:13,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 17:11:13,039 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 17:11:13,039 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 17:11:13,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 17:11:13,039 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 17:11:13,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 17:11:13,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 17:11:13,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 17:11:13,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 17:11:13,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 17:11:13,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 17:11:13,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 17:11:13,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 17:11:13,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 17:11:13,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 17:11:13,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 17:11:13,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 17:11:13,042 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 17:11:13,042 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 17:11:13,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:11:13,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 17:11:13,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 17:11:13,043 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 17:11:13,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 17:11:13,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 17:11:13,044 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 17:11:13,044 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 17:11:13,044 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 17:11:13,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 17:11:13,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 17:11:13,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 17:11:13,435 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 17:11:13,436 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-21 17:11:13,437 INFO L275 PluginConnector]: CDTParser initialized [2021-08-21 17:11:13,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-08-21 17:11:13,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1882042/a5c5a87714ea480fb3d1c02708a24448/FLAGa8aaf4c70 [2021-08-21 17:11:14,081 INFO L306 CDTParser]: Found 1 translation units. [2021-08-21 17:11:14,082 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe026_tso.oepc.i [2021-08-21 17:11:14,098 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1882042/a5c5a87714ea480fb3d1c02708a24448/FLAGa8aaf4c70 [2021-08-21 17:11:14,357 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc1882042/a5c5a87714ea480fb3d1c02708a24448 [2021-08-21 17:11:14,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 17:11:14,361 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-21 17:11:14,365 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-21 17:11:14,365 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-21 17:11:14,368 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-21 17:11:14,369 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74acfd35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14, skipping insertion in model container [2021-08-21 17:11:14,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-21 17:11:14,425 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-21 17:11:14,549 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/safe026_tso.oepc.i[950,963] [2021-08-21 17:11:14,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:11:14,754 INFO L203 MainTranslator]: Completed pre-run [2021-08-21 17:11:14,766 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/safe026_tso.oepc.i[950,963] [2021-08-21 17:11:14,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-21 17:11:14,844 INFO L208 MainTranslator]: Completed translation [2021-08-21 17:11:14,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14 WrapperNode [2021-08-21 17:11:14,846 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-21 17:11:14,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 17:11:14,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 17:11:14,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 17:11:14,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 17:11:14,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 17:11:14,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 17:11:14,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 17:11:14,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,927 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,928 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,936 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 17:11:14,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 17:11:14,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 17:11:14,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 17:11:14,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (1/1) ... [2021-08-21 17:11:14,953 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 17:11:14,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 17:11:14,974 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 17:11:14,997 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 17:11:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-21 17:11:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-08-21 17:11:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-21 17:11:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-21 17:11:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-08-21 17:11:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-08-21 17:11:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-08-21 17:11:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-08-21 17:11:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-08-21 17:11:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-08-21 17:11:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-21 17:11:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-08-21 17:11:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 17:11:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 17:11:15,021 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 17:11:15,452 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 17:11:15,452 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-08-21 17:11:15,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:11:15 BoogieIcfgContainer [2021-08-21 17:11:15,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 17:11:15,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 17:11:15,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 17:11:15,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 17:11:15,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 05:11:14" (1/3) ... [2021-08-21 17:11:15,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3176b71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:11:15, skipping insertion in model container [2021-08-21 17:11:15,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 05:11:14" (2/3) ... [2021-08-21 17:11:15,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3176b71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 05:11:15, skipping insertion in model container [2021-08-21 17:11:15,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 05:11:15" (3/3) ... [2021-08-21 17:11:15,462 INFO L111 eAbstractionObserver]: Analyzing ICFG safe026_tso.oepc.i [2021-08-21 17:11:15,467 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 17:11:15,467 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 17:11:15,467 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 17:11:15,467 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 17:11:15,500 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,501 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,501 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,502 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,502 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,502 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,503 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,503 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,503 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,504 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,504 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,504 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,505 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,505 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,505 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,506 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,506 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,506 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,507 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,510 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,510 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,511 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,511 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,516 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,516 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,517 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,520 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,520 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,520 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-08-21 17:11:15,523 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 17:11:15,563 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 17:11:15,569 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 17:11:15,570 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-21 17:11:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand has 4774 states, 4088 states have (on average 2.0420743639921723) internal successors, (8348), 4773 states have internal predecessors, (8348), 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 17:11:16,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-08-21 17:11:16,271 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:16,272 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] [2021-08-21 17:11:16,273 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:16,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:16,280 INFO L82 PathProgramCache]: Analyzing trace with hash 895196563, now seen corresponding path program 1 times [2021-08-21 17:11:16,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:16,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905637762] [2021-08-21 17:11:16,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:16,288 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:16,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:16,773 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 17:11:16,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:16,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905637762] [2021-08-21 17:11:16,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905637762] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:16,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:16,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:16,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674924906] [2021-08-21 17:11:16,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:16,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:16,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:16,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:16,805 INFO L87 Difference]: Start difference. First operand has 4774 states, 4088 states have (on average 2.0420743639921723) internal successors, (8348), 4773 states have internal predecessors, (8348), 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 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 17:11:17,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:17,314 INFO L93 Difference]: Finished difference Result 7726 states and 14209 transitions. [2021-08-21 17:11:17,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-21 17:11:17,316 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 48 [2021-08-21 17:11:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:17,358 INFO L225 Difference]: With dead ends: 7726 [2021-08-21 17:11:17,358 INFO L226 Difference]: Without dead ends: 2785 [2021-08-21 17:11:17,361 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 313.3ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:17,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2785 states. [2021-08-21 17:11:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2785 to 2265. [2021-08-21 17:11:17,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2265 states, 2223 states have (on average 2.3049932523616734) internal successors, (5124), 2264 states have internal predecessors, (5124), 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 17:11:17,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2265 states to 2265 states and 5124 transitions. [2021-08-21 17:11:17,521 INFO L78 Accepts]: Start accepts. Automaton has 2265 states and 5124 transitions. Word has length 48 [2021-08-21 17:11:17,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:17,522 INFO L470 AbstractCegarLoop]: Abstraction has 2265 states and 5124 transitions. [2021-08-21 17:11:17,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 7 states have internal predecessors, (48), 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 17:11:17,523 INFO L276 IsEmpty]: Start isEmpty. Operand 2265 states and 5124 transitions. [2021-08-21 17:11:17,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-21 17:11:17,527 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:17,528 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] [2021-08-21 17:11:17,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 17:11:17,528 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:17,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:17,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1942883596, now seen corresponding path program 1 times [2021-08-21 17:11:17,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:17,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486657055] [2021-08-21 17:11:17,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:17,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:17,752 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 17:11:17,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:17,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486657055] [2021-08-21 17:11:17,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486657055] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:17,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:17,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:17,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994060647] [2021-08-21 17:11:17,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:17,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:17,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:17,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:17,760 INFO L87 Difference]: Start difference. First operand 2265 states and 5124 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 17:11:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:18,012 INFO L93 Difference]: Finished difference Result 3457 states and 8228 transitions. [2021-08-21 17:11:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-21 17:11:18,013 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 50 [2021-08-21 17:11:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:18,027 INFO L225 Difference]: With dead ends: 3457 [2021-08-21 17:11:18,027 INFO L226 Difference]: Without dead ends: 2613 [2021-08-21 17:11:18,028 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 167.2ms TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:18,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2613 states. [2021-08-21 17:11:18,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2613 to 2061. [2021-08-21 17:11:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2061 states, 2025 states have (on average 2.325925925925926) internal successors, (4710), 2060 states have internal predecessors, (4710), 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 17:11:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2061 states to 2061 states and 4710 transitions. [2021-08-21 17:11:18,097 INFO L78 Accepts]: Start accepts. Automaton has 2061 states and 4710 transitions. Word has length 50 [2021-08-21 17:11:18,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:18,097 INFO L470 AbstractCegarLoop]: Abstraction has 2061 states and 4710 transitions. [2021-08-21 17:11:18,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 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 17:11:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 2061 states and 4710 transitions. [2021-08-21 17:11:18,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-08-21 17:11:18,103 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:18,103 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] [2021-08-21 17:11:18,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 17:11:18,104 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:18,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:18,104 INFO L82 PathProgramCache]: Analyzing trace with hash -603778187, now seen corresponding path program 1 times [2021-08-21 17:11:18,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:18,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839351997] [2021-08-21 17:11:18,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:18,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:18,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:18,274 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 17:11:18,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:18,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839351997] [2021-08-21 17:11:18,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839351997] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:18,275 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:18,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-21 17:11:18,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764456652] [2021-08-21 17:11:18,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 17:11:18,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:18,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 17:11:18,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-21 17:11:18,282 INFO L87 Difference]: Start difference. First operand 2061 states and 4710 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 17:11:18,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:18,406 INFO L93 Difference]: Finished difference Result 2633 states and 5787 transitions. [2021-08-21 17:11:18,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-21 17:11:18,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 52 [2021-08-21 17:11:18,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:18,416 INFO L225 Difference]: With dead ends: 2633 [2021-08-21 17:11:18,417 INFO L226 Difference]: Without dead ends: 1769 [2021-08-21 17:11:18,417 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 79.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:18,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1769 states. [2021-08-21 17:11:18,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1769 to 1769. [2021-08-21 17:11:18,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1769 states, 1733 states have (on average 2.3237160992498556) internal successors, (4027), 1768 states have internal predecessors, (4027), 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 17:11:18,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1769 states to 1769 states and 4027 transitions. [2021-08-21 17:11:18,489 INFO L78 Accepts]: Start accepts. Automaton has 1769 states and 4027 transitions. Word has length 52 [2021-08-21 17:11:18,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:18,491 INFO L470 AbstractCegarLoop]: Abstraction has 1769 states and 4027 transitions. [2021-08-21 17:11:18,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 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 17:11:18,491 INFO L276 IsEmpty]: Start isEmpty. Operand 1769 states and 4027 transitions. [2021-08-21 17:11:18,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-08-21 17:11:18,495 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:18,496 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] [2021-08-21 17:11:18,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 17:11:18,496 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:18,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:18,498 INFO L82 PathProgramCache]: Analyzing trace with hash 832327749, now seen corresponding path program 1 times [2021-08-21 17:11:18,498 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:18,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609302194] [2021-08-21 17:11:18,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:18,499 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:18,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:18,641 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 17:11:18,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:18,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609302194] [2021-08-21 17:11:18,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609302194] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:18,642 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:18,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:18,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757672133] [2021-08-21 17:11:18,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:18,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:18,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:18,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:18,644 INFO L87 Difference]: Start difference. First operand 1769 states and 4027 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 17:11:18,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:18,763 INFO L93 Difference]: Finished difference Result 1648 states and 3466 transitions. [2021-08-21 17:11:18,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-21 17:11:18,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 53 [2021-08-21 17:11:18,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:18,769 INFO L225 Difference]: With dead ends: 1648 [2021-08-21 17:11:18,769 INFO L226 Difference]: Without dead ends: 951 [2021-08-21 17:11:18,769 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 95.5ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-21 17:11:18,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 951 states. [2021-08-21 17:11:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 951 to 947. [2021-08-21 17:11:18,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 947 states, 917 states have (on average 2.178844056706652) internal successors, (1998), 946 states have internal predecessors, (1998), 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 17:11:18,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1998 transitions. [2021-08-21 17:11:18,793 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1998 transitions. Word has length 53 [2021-08-21 17:11:18,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:18,794 INFO L470 AbstractCegarLoop]: Abstraction has 947 states and 1998 transitions. [2021-08-21 17:11:18,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 7 states have internal predecessors, (53), 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 17:11:18,794 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1998 transitions. [2021-08-21 17:11:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-21 17:11:18,796 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:18,796 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] [2021-08-21 17:11:18,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 17:11:18,797 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:18,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:18,797 INFO L82 PathProgramCache]: Analyzing trace with hash 997829572, now seen corresponding path program 1 times [2021-08-21 17:11:18,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:18,797 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492631622] [2021-08-21 17:11:18,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:18,798 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:18,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:18,951 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 17:11:18,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:18,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492631622] [2021-08-21 17:11:18,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492631622] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:18,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:18,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-21 17:11:18,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218985548] [2021-08-21 17:11:18,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-21 17:11:18,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:18,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-21 17:11:18,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-21 17:11:18,956 INFO L87 Difference]: Start difference. First operand 947 states and 1998 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 17:11:19,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:19,090 INFO L93 Difference]: Finished difference Result 641 states and 1241 transitions. [2021-08-21 17:11:19,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-21 17:11:19,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 55 [2021-08-21 17:11:19,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:19,092 INFO L225 Difference]: With dead ends: 641 [2021-08-21 17:11:19,092 INFO L226 Difference]: Without dead ends: 286 [2021-08-21 17:11:19,093 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 107.5ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-08-21 17:11:19,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-08-21 17:11:19,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 270. [2021-08-21 17:11:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 261 states have (on average 1.8314176245210727) internal successors, (478), 269 states have internal predecessors, (478), 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 17:11:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 478 transitions. [2021-08-21 17:11:19,099 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 478 transitions. Word has length 55 [2021-08-21 17:11:19,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:19,099 INFO L470 AbstractCegarLoop]: Abstraction has 270 states and 478 transitions. [2021-08-21 17:11:19,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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 17:11:19,100 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 478 transitions. [2021-08-21 17:11:19,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-21 17:11:19,100 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:19,101 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 17:11:19,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-21 17:11:19,101 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:19,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:19,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1114972038, now seen corresponding path program 1 times [2021-08-21 17:11:19,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:19,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447502388] [2021-08-21 17:11:19,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:19,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:19,193 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 17:11:19,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:19,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447502388] [2021-08-21 17:11:19,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447502388] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:19,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:19,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:19,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412957219] [2021-08-21 17:11:19,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:19,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:19,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:19,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:19,195 INFO L87 Difference]: Start difference. First operand 270 states and 478 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 17:11:19,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:19,262 INFO L93 Difference]: Finished difference Result 404 states and 765 transitions. [2021-08-21 17:11:19,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-21 17:11:19,262 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 17:11:19,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:19,263 INFO L225 Difference]: With dead ends: 404 [2021-08-21 17:11:19,264 INFO L226 Difference]: Without dead ends: 263 [2021-08-21 17:11:19,264 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 67.8ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:19,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-08-21 17:11:19,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 263. [2021-08-21 17:11:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 254 states have (on average 1.8385826771653544) internal successors, (467), 262 states have internal predecessors, (467), 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 17:11:19,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 467 transitions. [2021-08-21 17:11:19,270 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 467 transitions. Word has length 59 [2021-08-21 17:11:19,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:19,270 INFO L470 AbstractCegarLoop]: Abstraction has 263 states and 467 transitions. [2021-08-21 17:11:19,270 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 17:11:19,270 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 467 transitions. [2021-08-21 17:11:19,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-21 17:11:19,271 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:19,271 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 17:11:19,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-21 17:11:19,271 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:19,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:19,272 INFO L82 PathProgramCache]: Analyzing trace with hash -1147615920, now seen corresponding path program 2 times [2021-08-21 17:11:19,272 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:19,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921729175] [2021-08-21 17:11:19,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:19,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:19,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:19,383 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 17:11:19,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:19,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921729175] [2021-08-21 17:11:19,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921729175] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:19,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:19,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:19,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555294582] [2021-08-21 17:11:19,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:19,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:19,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:19,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:19,385 INFO L87 Difference]: Start difference. First operand 263 states and 467 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 17:11:19,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:19,497 INFO L93 Difference]: Finished difference Result 417 states and 776 transitions. [2021-08-21 17:11:19,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 17:11:19,497 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 17:11:19,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:19,498 INFO L225 Difference]: With dead ends: 417 [2021-08-21 17:11:19,498 INFO L226 Difference]: Without dead ends: 202 [2021-08-21 17:11:19,499 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:19,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-08-21 17:11:19,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 202. [2021-08-21 17:11:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 193 states have (on average 1.8186528497409327) internal successors, (351), 201 states have internal predecessors, (351), 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 17:11:19,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 351 transitions. [2021-08-21 17:11:19,503 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 351 transitions. Word has length 59 [2021-08-21 17:11:19,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:19,504 INFO L470 AbstractCegarLoop]: Abstraction has 202 states and 351 transitions. [2021-08-21 17:11:19,504 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 17:11:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 351 transitions. [2021-08-21 17:11:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-08-21 17:11:19,505 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 17:11:19,505 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 17:11:19,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-21 17:11:19,505 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-08-21 17:11:19,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 17:11:19,506 INFO L82 PathProgramCache]: Analyzing trace with hash 659328890, now seen corresponding path program 3 times [2021-08-21 17:11:19,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 17:11:19,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197889751] [2021-08-21 17:11:19,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 17:11:19,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 17:11:19,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 17:11:19,586 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 17:11:19,586 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 17:11:19,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197889751] [2021-08-21 17:11:19,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197889751] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 17:11:19,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 17:11:19,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-21 17:11:19,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142700907] [2021-08-21 17:11:19,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-21 17:11:19,588 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 17:11:19,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-21 17:11:19,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-21 17:11:19,589 INFO L87 Difference]: Start difference. First operand 202 states and 351 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 17:11:19,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 17:11:19,649 INFO L93 Difference]: Finished difference Result 166 states and 291 transitions. [2021-08-21 17:11:19,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-21 17:11:19,649 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 17:11:19,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 17:11:19,649 INFO L225 Difference]: With dead ends: 166 [2021-08-21 17:11:19,649 INFO L226 Difference]: Without dead ends: 0 [2021-08-21 17:11:19,650 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 66.4ms TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-08-21 17:11:19,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-21 17:11:19,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-21 17:11:19,650 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 17:11:19,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-21 17:11:19,650 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 59 [2021-08-21 17:11:19,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 17:11:19,651 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-21 17:11:19,651 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 17:11:19,651 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-21 17:11:19,651 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-21 17:11:19,653 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-21 17:11:19,654 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 17:11:19,654 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 17:11:19,654 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 17:11:19,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-21 17:11:19,657 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 17:11:19,658 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 17:11:19,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 05:11:19 BasicIcfg [2021-08-21 17:11:19,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 17:11:19,661 INFO L168 Benchmark]: Toolchain (without parser) took 5298.98 ms. Allocated memory was 246.4 MB in the beginning and 313.5 MB in the end (delta: 67.1 MB). Free memory was 210.5 MB in the beginning and 237.4 MB in the end (delta: -27.0 MB). Peak memory consumption was 39.8 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:19,661 INFO L168 Benchmark]: CDTParser took 0.57 ms. Allocated memory is still 246.4 MB. Free memory was 228.6 MB in the beginning and 228.4 MB in the end (delta: 132.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 17:11:19,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 481.97 ms. Allocated memory is still 246.4 MB. Free memory was 210.2 MB in the beginning and 219.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:19,662 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.76 ms. Allocated memory is still 246.4 MB. Free memory was 219.7 MB in the beginning and 217.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:19,662 INFO L168 Benchmark]: Boogie Preprocessor took 32.20 ms. Allocated memory is still 246.4 MB. Free memory was 217.6 MB in the beginning and 216.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:19,662 INFO L168 Benchmark]: RCFGBuilder took 512.79 ms. Allocated memory is still 246.4 MB. Free memory was 216.6 MB in the beginning and 192.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:19,663 INFO L168 Benchmark]: TraceAbstraction took 4203.10 ms. Allocated memory was 246.4 MB in the beginning and 313.5 MB in the end (delta: 67.1 MB). Free memory was 191.9 MB in the beginning and 237.4 MB in the end (delta: -45.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 8.0 GB. [2021-08-21 17:11:19,664 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.57 ms. Allocated memory is still 246.4 MB. Free memory was 228.6 MB in the beginning and 228.4 MB in the end (delta: 132.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 481.97 ms. Allocated memory is still 246.4 MB. Free memory was 210.2 MB in the beginning and 219.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 60.76 ms. Allocated memory is still 246.4 MB. Free memory was 219.7 MB in the beginning and 217.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.20 ms. Allocated memory is still 246.4 MB. Free memory was 217.6 MB in the beginning and 216.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 512.79 ms. Allocated memory is still 246.4 MB. Free memory was 216.6 MB in the beginning and 192.4 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4203.10 ms. Allocated memory was 246.4 MB in the beginning and 313.5 MB in the end (delta: 67.1 MB). Free memory was 191.9 MB in the beginning and 237.4 MB in the end (delta: -45.5 MB). Peak memory consumption was 22.6 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: 15841, positive: 15204, positive conditional: 15204, positive unconditional: 0, negative: 637, negative conditional: 637, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15768, positive: 15204, positive conditional: 0, positive unconditional: 15204, negative: 564, negative conditional: 0, negative unconditional: 564, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 611, positive: 595, positive conditional: 0, positive unconditional: 595, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 611, positive: 591, positive conditional: 0, positive unconditional: 591, negative: 20, negative conditional: 0, negative unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 20, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 66, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 15768, positive: 14609, positive conditional: 0, positive unconditional: 14609, negative: 548, negative conditional: 0, negative unconditional: 548, unknown: 611, unknown conditional: 0, unknown unconditional: 611] , Statistics on independence cache: Total cache size (in pairs): 611, Positive cache size: 595, Positive conditional cache size: 0, Positive unconditional cache size: 595, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Independence queries for same thread: 73 - 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 7 procedures, 104 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4095.4ms, OverallIterations: 8, TraceHistogramMax: 1, EmptinessCheckTime: 61.1ms, AutomataDifference: 1503.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 657.4ms, PartialOrderReductionTime: 630.5ms, HoareTripleCheckerStatistics: 701 SDtfs, 931 SDslu, 2341 SDs, 0 SdLazy, 331 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 318.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 102 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 989.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4774occurred in iteration=0, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 329.2ms AutomataMinimizationTime, 8 MinimizatonAttempts, 1092 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 26.7ms SsaConstructionTime, 194.4ms SatisfiabilityAnalysisTime, 1132.3ms InterpolantComputationTime, 435 NumberOfCodeBlocks, 435 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 427 ConstructedInterpolants, 0 QuantifiedInterpolants, 1539 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-08-21 17:11:19,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...