/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 16:27:29,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 16:27:29,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 16:27:29,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 16:27:29,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 16:27:29,854 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 16:27:29,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 16:27:29,855 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.epf [2022-03-03 16:27:29,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 16:27:29,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 16:27:29,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 16:27:29,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 16:27:29,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 16:27:29,879 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 16:27:29,879 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 16:27:29,879 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 16:27:29,879 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 16:27:29,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 16:27:29,880 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 16:27:29,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 16:27:29,880 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 16:27:29,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 16:27:29,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 16:27:29,881 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 16:27:29,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 16:27:29,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:27:29,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 16:27:29,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 16:27:29,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 16:27:29,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 16:27:29,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 16:27:29,883 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 16:27:29,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 16:27:29,883 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 16:27:30,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 16:27:30,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 16:27:30,096 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 16:27:30,097 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 16:27:30,098 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 16:27:30,099 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-03-03 16:27:30,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e52b4388/27626c6ca1da480bb0b2e5e6f6d4698e/FLAG8c9cb434a [2022-03-03 16:27:30,537 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 16:27:30,558 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i [2022-03-03 16:27:30,571 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e52b4388/27626c6ca1da480bb0b2e5e6f6d4698e/FLAG8c9cb434a [2022-03-03 16:27:30,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4e52b4388/27626c6ca1da480bb0b2e5e6f6d4698e [2022-03-03 16:27:30,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 16:27:30,870 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 16:27:30,872 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 16:27:30,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 16:27:30,875 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 16:27:30,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:27:30" (1/1) ... [2022-03-03 16:27:30,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6708cf05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:30, skipping insertion in model container [2022-03-03 16:27:30,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 04:27:30" (1/1) ... [2022-03-03 16:27:30,883 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 16:27:30,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 16:27:31,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-03-03 16:27:31,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:27:31,404 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 16:27:31,411 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-C-DAC/pthread-demo-datarace-1.i[820,833] [2022-03-03 16:27:31,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 16:27:31,484 INFO L208 MainTranslator]: Completed translation [2022-03-03 16:27:31,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31 WrapperNode [2022-03-03 16:27:31,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 16:27:31,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 16:27:31,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 16:27:31,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 16:27:31,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,516 INFO L137 Inliner]: procedures = 364, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 67 [2022-03-03 16:27:31,516 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 16:27:31,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 16:27:31,517 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 16:27:31,517 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 16:27:31,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 16:27:31,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 16:27:31,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 16:27:31,533 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 16:27:31,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (1/1) ... [2022-03-03 16:27:31,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 16:27:31,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:31,605 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) [2022-03-03 16:27:31,680 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 [2022-03-03 16:27:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 16:27:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 16:27:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 16:27:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 16:27:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-03-03 16:27:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 16:27:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_mutex [2022-03-03 16:27:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_mutex [2022-03-03 16:27:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 16:27:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 16:27:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 16:27:31,712 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 16:27:31,817 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 16:27:31,818 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 16:27:31,997 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 16:27:32,002 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 16:27:32,002 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-03-03 16:27:32,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:27:32 BoogieIcfgContainer [2022-03-03 16:27:32,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 16:27:32,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 16:27:32,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 16:27:32,009 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 16:27:32,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 04:27:30" (1/3) ... [2022-03-03 16:27:32,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee327cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:27:32, skipping insertion in model container [2022-03-03 16:27:32,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 04:27:31" (2/3) ... [2022-03-03 16:27:32,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee327cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 04:27:32, skipping insertion in model container [2022-03-03 16:27:32,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 04:27:32" (3/3) ... [2022-03-03 16:27:32,011 INFO L111 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-1.i [2022-03-03 16:27:32,014 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 16:27:32,014 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 16:27:32,015 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 16:27:32,015 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 16:27:32,057 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,057 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,057 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,058 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,058 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,058 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,059 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,059 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,059 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,059 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,059 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,059 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,059 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,060 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,060 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,060 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,060 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,062 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,062 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,062 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,072 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,072 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,072 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,073 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,073 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,074 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,074 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,074 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,074 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,074 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,074 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,075 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,075 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,075 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,075 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,075 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,075 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,075 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,076 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,076 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,076 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,076 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,076 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,076 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,076 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,076 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,079 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,079 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,079 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~j~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,079 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~post31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,079 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,079 WARN L322 ript$VariableManager]: TermVariabe thread_function_mutexThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,080 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,080 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,080 WARN L322 ript$VariableManager]: TermVariabe |thread_function_mutexThread1of1ForFork0_#t~nondet32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 16:27:32,084 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-03-03 16:27:32,124 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 16:27:32,128 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 16:27:32,128 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-03-03 16:27:32,138 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 97 transitions, 202 flow [2022-03-03 16:27:32,191 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 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) [2022-03-03 16:27:32,194 INFO L276 IsEmpty]: Start isEmpty. Operand has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 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) [2022-03-03 16:27:32,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-03 16:27:32,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:32,205 INFO L514 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] [2022-03-03 16:27:32,205 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:32,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:32,209 INFO L85 PathProgramCache]: Analyzing trace with hash -412203326, now seen corresponding path program 1 times [2022-03-03 16:27:32,214 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:32,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957735942] [2022-03-03 16:27:32,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:32,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:32,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:32,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:32,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957735942] [2022-03-03 16:27:32,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957735942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:27:32,389 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:27:32,389 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 16:27:32,390 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314791485] [2022-03-03 16:27:32,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:27:32,393 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 16:27:32,393 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:32,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 16:27:32,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 16:27:32,414 INFO L87 Difference]: Start difference. First operand has 353 states, 352 states have (on average 2.0255681818181817) internal successors, (713), 352 states have internal predecessors, (713), 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 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2022-03-03 16:27:32,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:32,437 INFO L93 Difference]: Finished difference Result 351 states and 657 transitions. [2022-03-03 16:27:32,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 16:27:32,439 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2022-03-03 16:27:32,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:32,446 INFO L225 Difference]: With dead ends: 351 [2022-03-03 16:27:32,447 INFO L226 Difference]: Without dead ends: 297 [2022-03-03 16:27:32,448 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 16:27:32,450 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:32,450 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:32,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2022-03-03 16:27:32,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2022-03-03 16:27:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 296 states have (on average 1.8547297297297298) internal successors, (549), 296 states have internal predecessors, (549), 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) [2022-03-03 16:27:32,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 549 transitions. [2022-03-03 16:27:32,497 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 549 transitions. Word has length 58 [2022-03-03 16:27:32,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:32,497 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 549 transitions. [2022-03-03 16:27:32,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 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) [2022-03-03 16:27:32,498 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 549 transitions. [2022-03-03 16:27:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-03 16:27:32,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:32,501 INFO L514 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] [2022-03-03 16:27:32,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 16:27:32,502 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:32,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1088740258, now seen corresponding path program 1 times [2022-03-03 16:27:32,502 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:32,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102191972] [2022-03-03 16:27:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:32,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:32,577 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:32,577 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102191972] [2022-03-03 16:27:32,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102191972] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:27:32,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:27:32,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:27:32,578 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528660998] [2022-03-03 16:27:32,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:27:32,579 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:27:32,579 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:32,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:27:32,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:27:32,580 INFO L87 Difference]: Start difference. First operand 297 states and 549 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2022-03-03 16:27:32,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:32,627 INFO L93 Difference]: Finished difference Result 437 states and 829 transitions. [2022-03-03 16:27:32,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:27:32,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2022-03-03 16:27:32,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:32,629 INFO L225 Difference]: With dead ends: 437 [2022-03-03 16:27:32,629 INFO L226 Difference]: Without dead ends: 437 [2022-03-03 16:27:32,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:27:32,631 INFO L933 BasicCegarLoop]: 87 mSDtfsCounter, 23 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:32,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 156 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:32,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2022-03-03 16:27:32,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 311. [2022-03-03 16:27:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.8612903225806452) internal successors, (577), 310 states have internal predecessors, (577), 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) [2022-03-03 16:27:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 577 transitions. [2022-03-03 16:27:32,644 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 577 transitions. Word has length 58 [2022-03-03 16:27:32,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:32,644 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 577 transitions. [2022-03-03 16:27:32,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2022-03-03 16:27:32,645 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 577 transitions. [2022-03-03 16:27:32,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-03-03 16:27:32,647 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:32,647 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:32,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 16:27:32,647 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:32,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:32,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1826468594, now seen corresponding path program 1 times [2022-03-03 16:27:32,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:32,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424420582] [2022-03-03 16:27:32,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:32,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:32,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:32,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:32,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:32,697 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424420582] [2022-03-03 16:27:32,697 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424420582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:27:32,697 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:27:32,697 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:27:32,697 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318762971] [2022-03-03 16:27:32,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:27:32,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:27:32,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:27:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:27:32,698 INFO L87 Difference]: Start difference. First operand 311 states and 577 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:32,714 INFO L93 Difference]: Finished difference Result 444 states and 843 transitions. [2022-03-03 16:27:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:27:32,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2022-03-03 16:27:32,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:32,717 INFO L225 Difference]: With dead ends: 444 [2022-03-03 16:27:32,717 INFO L226 Difference]: Without dead ends: 444 [2022-03-03 16:27:32,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:27:32,718 INFO L933 BasicCegarLoop]: 91 mSDtfsCounter, 24 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:32,718 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 159 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:32,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-03-03 16:27:32,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 330. [2022-03-03 16:27:32,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 329 states have (on average 1.8693009118541033) internal successors, (615), 329 states have internal predecessors, (615), 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) [2022-03-03 16:27:32,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 615 transitions. [2022-03-03 16:27:32,728 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 615 transitions. Word has length 69 [2022-03-03 16:27:32,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:32,728 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 615 transitions. [2022-03-03 16:27:32,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 16:27:32,728 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 615 transitions. [2022-03-03 16:27:32,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-03-03 16:27:32,730 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:32,730 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:32,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 16:27:32,730 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:32,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:32,731 INFO L85 PathProgramCache]: Analyzing trace with hash 88002593, now seen corresponding path program 1 times [2022-03-03 16:27:32,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:32,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880016380] [2022-03-03 16:27:32,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:32,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:32,802 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:32,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:32,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880016380] [2022-03-03 16:27:32,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880016380] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:32,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920950020] [2022-03-03 16:27:32,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:32,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:32,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:32,805 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:32,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 16:27:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:32,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 16:27:32,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:33,143 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:33,144 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:33,264 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:33,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920950020] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:33,264 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:33,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-03 16:27:33,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853322351] [2022-03-03 16:27:33,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:33,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:27:33,265 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:33,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:27:33,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:27:33,266 INFO L87 Difference]: Start difference. First operand 330 states and 615 transitions. Second operand has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2022-03-03 16:27:33,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:33,318 INFO L93 Difference]: Finished difference Result 634 states and 1223 transitions. [2022-03-03 16:27:33,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:27:33,318 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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 77 [2022-03-03 16:27:33,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:33,320 INFO L225 Difference]: With dead ends: 634 [2022-03-03 16:27:33,321 INFO L226 Difference]: Without dead ends: 634 [2022-03-03 16:27:33,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:27:33,322 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 303 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:33,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [303 Valid, 518 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2022-03-03 16:27:33,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2022-03-03 16:27:33,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 633 states have (on average 1.9320695102685623) internal successors, (1223), 633 states have internal predecessors, (1223), 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) [2022-03-03 16:27:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1223 transitions. [2022-03-03 16:27:33,334 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1223 transitions. Word has length 77 [2022-03-03 16:27:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:33,334 INFO L470 AbstractCegarLoop]: Abstraction has 634 states and 1223 transitions. [2022-03-03 16:27:33,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.5) internal successors, (95), 10 states have internal predecessors, (95), 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) [2022-03-03 16:27:33,334 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1223 transitions. [2022-03-03 16:27:33,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-03 16:27:33,336 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:33,336 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:33,353 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-03 16:27:33,554 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:33,555 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:33,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:33,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1150192967, now seen corresponding path program 2 times [2022-03-03 16:27:33,555 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:33,556 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676638743] [2022-03-03 16:27:33,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:33,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:33,600 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-03-03 16:27:33,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:33,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676638743] [2022-03-03 16:27:33,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676638743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 16:27:33,600 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 16:27:33,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-03 16:27:33,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958584060] [2022-03-03 16:27:33,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 16:27:33,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-03 16:27:33,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:33,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-03 16:27:33,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:27:33,602 INFO L87 Difference]: Start difference. First operand 634 states and 1223 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2022-03-03 16:27:33,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:33,615 INFO L93 Difference]: Finished difference Result 580 states and 1088 transitions. [2022-03-03 16:27:33,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-03 16:27:33,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 93 [2022-03-03 16:27:33,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:33,618 INFO L225 Difference]: With dead ends: 580 [2022-03-03 16:27:33,618 INFO L226 Difference]: Without dead ends: 580 [2022-03-03 16:27:33,618 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-03 16:27:33,619 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 21 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:33,619 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 152 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:33,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-03-03 16:27:33,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-03-03 16:27:33,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 579 states have (on average 1.8791018998272884) internal successors, (1088), 579 states have internal predecessors, (1088), 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) [2022-03-03 16:27:33,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 1088 transitions. [2022-03-03 16:27:33,629 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 1088 transitions. Word has length 93 [2022-03-03 16:27:33,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:33,629 INFO L470 AbstractCegarLoop]: Abstraction has 580 states and 1088 transitions. [2022-03-03 16:27:33,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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) [2022-03-03 16:27:33,630 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 1088 transitions. [2022-03-03 16:27:33,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-03 16:27:33,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:33,631 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:33,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 16:27:33,631 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:33,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:33,632 INFO L85 PathProgramCache]: Analyzing trace with hash 746770257, now seen corresponding path program 3 times [2022-03-03 16:27:33,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:33,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451111807] [2022-03-03 16:27:33,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:33,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:33,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-03 16:27:33,705 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:33,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451111807] [2022-03-03 16:27:33,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451111807] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:33,705 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546172649] [2022-03-03 16:27:33,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 16:27:33,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:33,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:33,727 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:33,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 16:27:33,817 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-03 16:27:33,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:33,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 16:27:33,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-03 16:27:33,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:34,053 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-03-03 16:27:34,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546172649] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:34,053 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:34,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-03-03 16:27:34,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240161206] [2022-03-03 16:27:34,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:34,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 16:27:34,054 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:34,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 16:27:34,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-03-03 16:27:34,055 INFO L87 Difference]: Start difference. First operand 580 states and 1088 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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) [2022-03-03 16:27:34,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:34,102 INFO L93 Difference]: Finished difference Result 1154 states and 2182 transitions. [2022-03-03 16:27:34,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 16:27:34,103 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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 93 [2022-03-03 16:27:34,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:34,106 INFO L225 Difference]: With dead ends: 1154 [2022-03-03 16:27:34,106 INFO L226 Difference]: Without dead ends: 1154 [2022-03-03 16:27:34,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-03-03 16:27:34,107 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 171 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:34,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 572 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:34,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1154 states. [2022-03-03 16:27:34,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1154 to 1154. [2022-03-03 16:27:34,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1154 states, 1153 states have (on average 1.8924544666088465) internal successors, (2182), 1153 states have internal predecessors, (2182), 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) [2022-03-03 16:27:34,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1154 states to 1154 states and 2182 transitions. [2022-03-03 16:27:34,153 INFO L78 Accepts]: Start accepts. Automaton has 1154 states and 2182 transitions. Word has length 93 [2022-03-03 16:27:34,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:34,166 INFO L470 AbstractCegarLoop]: Abstraction has 1154 states and 2182 transitions. [2022-03-03 16:27:34,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 10 states have internal predecessors, (119), 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) [2022-03-03 16:27:34,167 INFO L276 IsEmpty]: Start isEmpty. Operand 1154 states and 2182 transitions. [2022-03-03 16:27:34,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-03-03 16:27:34,169 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:34,169 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:34,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:34,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-03-03 16:27:34,383 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:34,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:34,383 INFO L85 PathProgramCache]: Analyzing trace with hash -27559221, now seen corresponding path program 4 times [2022-03-03 16:27:34,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:34,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307536002] [2022-03-03 16:27:34,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:34,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:34,500 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:34,500 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:34,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307536002] [2022-03-03 16:27:34,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307536002] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:34,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105166234] [2022-03-03 16:27:34,501 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 16:27:34,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:34,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:34,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:34,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 16:27:34,607 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 16:27:34,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:34,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-03 16:27:34,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:34,815 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:34,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:34,986 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 11 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:34,986 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105166234] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:34,986 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:34,986 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-03 16:27:34,986 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604395627] [2022-03-03 16:27:35,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:35,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-03 16:27:35,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:35,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-03 16:27:35,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-03 16:27:35,005 INFO L87 Difference]: Start difference. First operand 1154 states and 2182 transitions. Second operand has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 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) [2022-03-03 16:27:35,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:35,146 INFO L93 Difference]: Finished difference Result 2302 states and 4370 transitions. [2022-03-03 16:27:35,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:27:35,146 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 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 115 [2022-03-03 16:27:35,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:35,154 INFO L225 Difference]: With dead ends: 2302 [2022-03-03 16:27:35,154 INFO L226 Difference]: Without dead ends: 2302 [2022-03-03 16:27:35,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-03-03 16:27:35,156 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 680 mSDsluCounter, 519 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 615 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:35,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 615 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:27:35,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2302 states. [2022-03-03 16:27:35,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2302 to 2302. [2022-03-03 16:27:35,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2302 states, 2301 states have (on average 1.899174272055628) internal successors, (4370), 2301 states have internal predecessors, (4370), 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) [2022-03-03 16:27:35,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2302 states to 2302 states and 4370 transitions. [2022-03-03 16:27:35,244 INFO L78 Accepts]: Start accepts. Automaton has 2302 states and 4370 transitions. Word has length 115 [2022-03-03 16:27:35,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:35,245 INFO L470 AbstractCegarLoop]: Abstraction has 2302 states and 4370 transitions. [2022-03-03 16:27:35,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.61111111111111) internal successors, (191), 18 states have internal predecessors, (191), 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) [2022-03-03 16:27:35,246 INFO L276 IsEmpty]: Start isEmpty. Operand 2302 states and 4370 transitions. [2022-03-03 16:27:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-03-03 16:27:35,252 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:35,253 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:35,272 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-03 16:27:35,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:35,453 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:35,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:35,454 INFO L85 PathProgramCache]: Analyzing trace with hash -617723337, now seen corresponding path program 5 times [2022-03-03 16:27:35,454 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:35,454 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117036350] [2022-03-03 16:27:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:35,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:35,545 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-03 16:27:35,546 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:35,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117036350] [2022-03-03 16:27:35,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117036350] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:35,546 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131806159] [2022-03-03 16:27:35,546 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 16:27:35,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:35,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:35,548 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:35,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 16:27:35,625 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-03-03 16:27:35,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:35,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-03 16:27:35,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-03 16:27:35,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:36,032 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 148 proven. 60 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-03-03 16:27:36,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131806159] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:36,033 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:36,033 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-03-03 16:27:36,033 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780582566] [2022-03-03 16:27:36,033 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:36,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-03 16:27:36,033 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:36,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-03 16:27:36,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-03-03 16:27:36,034 INFO L87 Difference]: Start difference. First operand 2302 states and 4370 transitions. Second operand has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 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) [2022-03-03 16:27:36,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:36,180 INFO L93 Difference]: Finished difference Result 4518 states and 8550 transitions. [2022-03-03 16:27:36,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-03 16:27:36,181 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 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 159 [2022-03-03 16:27:36,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:36,195 INFO L225 Difference]: With dead ends: 4518 [2022-03-03 16:27:36,195 INFO L226 Difference]: Without dead ends: 4518 [2022-03-03 16:27:36,195 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 321 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=280, Invalid=590, Unknown=0, NotChecked=0, Total=870 [2022-03-03 16:27:36,196 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 810 mSDsluCounter, 652 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:36,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [810 Valid, 750 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 16:27:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4518 states. [2022-03-03 16:27:36,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4518 to 4518. [2022-03-03 16:27:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4518 states, 4517 states have (on average 1.8928492362187292) internal successors, (8550), 4517 states have internal predecessors, (8550), 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) [2022-03-03 16:27:36,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4518 states to 4518 states and 8550 transitions. [2022-03-03 16:27:36,270 INFO L78 Accepts]: Start accepts. Automaton has 4518 states and 8550 transitions. Word has length 159 [2022-03-03 16:27:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:36,270 INFO L470 AbstractCegarLoop]: Abstraction has 4518 states and 8550 transitions. [2022-03-03 16:27:36,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 11.38888888888889) internal successors, (205), 18 states have internal predecessors, (205), 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) [2022-03-03 16:27:36,271 INFO L276 IsEmpty]: Start isEmpty. Operand 4518 states and 8550 transitions. [2022-03-03 16:27:36,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2022-03-03 16:27:36,279 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:36,279 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:36,297 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:36,492 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:36,493 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:36,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:36,493 INFO L85 PathProgramCache]: Analyzing trace with hash -695670005, now seen corresponding path program 6 times [2022-03-03 16:27:36,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:36,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773851269] [2022-03-03 16:27:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:36,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:36,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:36,637 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:36,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:36,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773851269] [2022-03-03 16:27:36,638 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773851269] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:36,638 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068471842] [2022-03-03 16:27:36,638 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 16:27:36,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:36,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:36,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:36,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-03 16:27:36,799 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-03-03 16:27:36,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:36,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-03 16:27:36,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:37,118 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:37,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:37,546 INFO L134 CoverageAnalysis]: Checked inductivity of 413 backedges. 31 proven. 382 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:37,546 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068471842] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:37,547 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:37,547 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-03-03 16:27:37,547 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944736742] [2022-03-03 16:27:37,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:37,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-03 16:27:37,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:37,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-03 16:27:37,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:27:37,548 INFO L87 Difference]: Start difference. First operand 4518 states and 8550 transitions. Second operand has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 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) [2022-03-03 16:27:38,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:38,114 INFO L93 Difference]: Finished difference Result 9054 states and 17118 transitions. [2022-03-03 16:27:38,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 16:27:38,115 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 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 191 [2022-03-03 16:27:38,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:38,159 INFO L225 Difference]: With dead ends: 9054 [2022-03-03 16:27:38,159 INFO L226 Difference]: Without dead ends: 9054 [2022-03-03 16:27:38,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 16:27:38,160 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 1871 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1871 SdHoareTripleChecker+Valid, 1114 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:38,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1871 Valid, 1114 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:27:38,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9054 states. [2022-03-03 16:27:38,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9054 to 9054. [2022-03-03 16:27:38,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9054 states, 9053 states have (on average 1.8908649066607754) internal successors, (17118), 9053 states have internal predecessors, (17118), 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) [2022-03-03 16:27:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9054 states to 9054 states and 17118 transitions. [2022-03-03 16:27:38,479 INFO L78 Accepts]: Start accepts. Automaton has 9054 states and 17118 transitions. Word has length 191 [2022-03-03 16:27:38,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:38,479 INFO L470 AbstractCegarLoop]: Abstraction has 9054 states and 17118 transitions. [2022-03-03 16:27:38,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.088235294117647) internal successors, (343), 34 states have internal predecessors, (343), 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) [2022-03-03 16:27:38,480 INFO L276 IsEmpty]: Start isEmpty. Operand 9054 states and 17118 transitions. [2022-03-03 16:27:38,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-03-03 16:27:38,495 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:38,495 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:38,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:38,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:38,711 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:38,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:38,712 INFO L85 PathProgramCache]: Analyzing trace with hash 447962103, now seen corresponding path program 7 times [2022-03-03 16:27:38,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:38,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968522067] [2022-03-03 16:27:38,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:38,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:38,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-03-03 16:27:38,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:38,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968522067] [2022-03-03 16:27:38,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968522067] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:38,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310381686] [2022-03-03 16:27:38,930 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-03 16:27:38,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:38,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:38,952 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:38,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-03 16:27:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:39,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 16 conjunts are in the unsatisfiable core [2022-03-03 16:27:39,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:39,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-03-03 16:27:39,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:40,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1345 backedges. 652 proven. 406 refuted. 0 times theorem prover too weak. 287 trivial. 0 not checked. [2022-03-03 16:27:40,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310381686] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:40,083 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:40,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-03-03 16:27:40,084 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577058761] [2022-03-03 16:27:40,084 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:40,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-03 16:27:40,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:40,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-03 16:27:40,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-03-03 16:27:40,086 INFO L87 Difference]: Start difference. First operand 9054 states and 17118 transitions. Second operand has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 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) [2022-03-03 16:27:40,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:27:40,607 INFO L93 Difference]: Finished difference Result 17966 states and 33862 transitions. [2022-03-03 16:27:40,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-03 16:27:40,607 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 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 279 [2022-03-03 16:27:40,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:27:40,644 INFO L225 Difference]: With dead ends: 17966 [2022-03-03 16:27:40,644 INFO L226 Difference]: Without dead ends: 17966 [2022-03-03 16:27:40,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 569 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 827 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1192, Invalid=2590, Unknown=0, NotChecked=0, Total=3782 [2022-03-03 16:27:40,645 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 2523 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2523 SdHoareTripleChecker+Valid, 1161 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:27:40,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2523 Valid, 1161 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:27:40,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17966 states. [2022-03-03 16:27:40,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17966 to 17966. [2022-03-03 16:27:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17966 states, 17965 states have (on average 1.8848872808238242) internal successors, (33862), 17965 states have internal predecessors, (33862), 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) [2022-03-03 16:27:40,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17966 states to 17966 states and 33862 transitions. [2022-03-03 16:27:40,968 INFO L78 Accepts]: Start accepts. Automaton has 17966 states and 33862 transitions. Word has length 279 [2022-03-03 16:27:40,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:27:40,968 INFO L470 AbstractCegarLoop]: Abstraction has 17966 states and 33862 transitions. [2022-03-03 16:27:40,969 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 10.5) internal successors, (357), 34 states have internal predecessors, (357), 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) [2022-03-03 16:27:40,969 INFO L276 IsEmpty]: Start isEmpty. Operand 17966 states and 33862 transitions. [2022-03-03 16:27:41,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2022-03-03 16:27:41,000 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:27:41,001 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:27:41,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-03 16:27:41,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:41,216 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:27:41,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:27:41,216 INFO L85 PathProgramCache]: Analyzing trace with hash 970632075, now seen corresponding path program 8 times [2022-03-03 16:27:41,216 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:27:41,216 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849856884] [2022-03-03 16:27:41,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:27:41,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:27:41,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:27:41,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 71 proven. 1954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:41,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:27:41,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849856884] [2022-03-03 16:27:41,720 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849856884] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:27:41,720 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620543545] [2022-03-03 16:27:41,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 16:27:41,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:27:41,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:27:41,721 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:27:41,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-03 16:27:41,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 16:27:41,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:27:41,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-03 16:27:41,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:27:43,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 57 proven. 1968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:43,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:27:43,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 57 proven. 1968 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:27:43,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620543545] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:27:43,721 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:27:43,721 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 72 [2022-03-03 16:27:43,721 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054288452] [2022-03-03 16:27:43,721 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:27:43,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2022-03-03 16:27:43,722 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:27:43,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2022-03-03 16:27:43,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=727, Invalid=4385, Unknown=0, NotChecked=0, Total=5112 [2022-03-03 16:27:43,724 INFO L87 Difference]: Start difference. First operand 17966 states and 33862 transitions. Second operand has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 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) [2022-03-03 16:33:07,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:33:07,236 INFO L93 Difference]: Finished difference Result 26156 states and 49207 transitions. [2022-03-03 16:33:07,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2774 states. [2022-03-03 16:33:07,237 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 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 343 [2022-03-03 16:33:07,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:33:07,344 INFO L225 Difference]: With dead ends: 26156 [2022-03-03 16:33:07,344 INFO L226 Difference]: Without dead ends: 26156 [2022-03-03 16:33:07,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4449 GetRequests, 1642 SyntacticMatches, 1 SemanticMatches, 2806 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4086993 ImplicationChecksByTransitivity, 296.9s TimeCoverageRelationStatistics Valid=1304691, Invalid=6577365, Unknown=0, NotChecked=0, Total=7882056 [2022-03-03 16:33:07,817 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 49604 mSDsluCounter, 2693 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 4948 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49604 SdHoareTripleChecker+Valid, 2794 SdHoareTripleChecker+Invalid, 5855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4948 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-03-03 16:33:07,817 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49604 Valid, 2794 Invalid, 5855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4948 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-03-03 16:33:07,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26156 states. [2022-03-03 16:33:08,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26156 to 25013. [2022-03-03 16:33:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25013 states, 25012 states have (on average 1.8831360946745561) internal successors, (47101), 25012 states have internal predecessors, (47101), 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) [2022-03-03 16:33:08,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25013 states to 25013 states and 47101 transitions. [2022-03-03 16:33:08,152 INFO L78 Accepts]: Start accepts. Automaton has 25013 states and 47101 transitions. Word has length 343 [2022-03-03 16:33:08,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:33:08,153 INFO L470 AbstractCegarLoop]: Abstraction has 25013 states and 47101 transitions. [2022-03-03 16:33:08,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 9.972222222222221) internal successors, (718), 72 states have internal predecessors, (718), 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) [2022-03-03 16:33:08,153 INFO L276 IsEmpty]: Start isEmpty. Operand 25013 states and 47101 transitions. [2022-03-03 16:33:08,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2022-03-03 16:33:08,202 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:33:08,202 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:33:08,238 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-03 16:33:08,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:33:08,420 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:33:08,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:33:08,420 INFO L85 PathProgramCache]: Analyzing trace with hash -453903054, now seen corresponding path program 9 times [2022-03-03 16:33:08,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:33:08,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428194936] [2022-03-03 16:33:08,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:33:08,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:33:08,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:33:09,339 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-03-03 16:33:09,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:33:09,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428194936] [2022-03-03 16:33:09,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428194936] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:33:09,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154328051] [2022-03-03 16:33:09,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 16:33:09,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:33:09,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:33:09,341 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:33:09,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-03 16:33:09,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2022-03-03 16:33:09,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:33:09,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 34 conjunts are in the unsatisfiable core [2022-03-03 16:33:09,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:33:10,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-03-03 16:33:10,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:33:10,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2876 backedges. 572 proven. 2236 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-03-03 16:33:10,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154328051] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:33:10,992 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:33:10,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 43 [2022-03-03 16:33:10,992 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721436825] [2022-03-03 16:33:10,992 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:33:10,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-03 16:33:10,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:33:10,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-03 16:33:10,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=483, Invalid=1323, Unknown=0, NotChecked=0, Total=1806 [2022-03-03 16:33:10,994 INFO L87 Difference]: Start difference. First operand 25013 states and 47101 transitions. Second operand has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 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) [2022-03-03 16:33:11,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:33:11,959 INFO L93 Difference]: Finished difference Result 30921 states and 58197 transitions. [2022-03-03 16:33:11,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-03 16:33:11,959 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 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 394 [2022-03-03 16:33:11,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:33:12,031 INFO L225 Difference]: With dead ends: 30921 [2022-03-03 16:33:12,031 INFO L226 Difference]: Without dead ends: 30921 [2022-03-03 16:33:12,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 859 GetRequests, 779 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1261 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2044, Invalid=4436, Unknown=0, NotChecked=0, Total=6480 [2022-03-03 16:33:12,032 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 2562 mSDsluCounter, 1277 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2562 SdHoareTripleChecker+Valid, 1369 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 16:33:12,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2562 Valid, 1369 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 16:33:12,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30921 states. [2022-03-03 16:33:12,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30921 to 30921. [2022-03-03 16:33:12,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30921 states, 30920 states have (on average 1.8821798188874515) internal successors, (58197), 30920 states have internal predecessors, (58197), 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) [2022-03-03 16:33:12,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30921 states to 30921 states and 58197 transitions. [2022-03-03 16:33:12,408 INFO L78 Accepts]: Start accepts. Automaton has 30921 states and 58197 transitions. Word has length 394 [2022-03-03 16:33:12,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:33:12,409 INFO L470 AbstractCegarLoop]: Abstraction has 30921 states and 58197 transitions. [2022-03-03 16:33:12,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 10.372093023255815) internal successors, (446), 43 states have internal predecessors, (446), 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) [2022-03-03 16:33:12,409 INFO L276 IsEmpty]: Start isEmpty. Operand 30921 states and 58197 transitions. [2022-03-03 16:33:12,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-03-03 16:33:12,449 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:33:12,449 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:33:12,469 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-03 16:33:12,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-03 16:33:12,667 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:33:12,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:33:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash 1784322982, now seen corresponding path program 10 times [2022-03-03 16:33:12,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:33:12,668 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315055829] [2022-03-03 16:33:12,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:33:12,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:33:12,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:33:15,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:33:15,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:33:15,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315055829] [2022-03-03 16:33:15,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315055829] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:33:15,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644888881] [2022-03-03 16:33:15,634 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 16:33:15,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:33:15,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:33:15,636 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:33:15,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-03 16:33:15,909 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 16:33:15,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:33:15,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-03-03 16:33:15,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:33:17,678 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:33:17,678 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:33:19,104 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:33:19,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644888881] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:33:19,104 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:33:19,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-03-03 16:33:19,105 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295189989] [2022-03-03 16:33:19,105 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:33:19,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-03 16:33:19,105 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:33:19,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-03 16:33:19,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 16:33:19,107 INFO L87 Difference]: Start difference. First operand 30921 states and 58197 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:34:22,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:34:22,039 INFO L93 Difference]: Finished difference Result 764550 states and 1465032 transitions. [2022-03-03 16:34:22,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 981 states. [2022-03-03 16:34:22,039 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-03-03 16:34:22,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:34:24,263 INFO L225 Difference]: With dead ends: 764550 [2022-03-03 16:34:24,263 INFO L226 Difference]: Without dead ends: 764290 [2022-03-03 16:34:24,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1858 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 984 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 405331 ImplicationChecksByTransitivity, 25.5s TimeCoverageRelationStatistics Valid=3949, Invalid=967261, Unknown=0, NotChecked=0, Total=971210 [2022-03-03 16:34:24,362 INFO L933 BasicCegarLoop]: 13882 mSDtfsCounter, 16494 mSDsluCounter, 1124995 mSDsCounter, 0 mSdLazyCounter, 154652 mSolverCounterSat, 977 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16494 SdHoareTripleChecker+Valid, 1137193 SdHoareTripleChecker+Invalid, 155629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 977 IncrementalHoareTripleChecker+Valid, 154652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.0s IncrementalHoareTripleChecker+Time [2022-03-03 16:34:24,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16494 Valid, 1137193 Invalid, 155629 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [977 Valid, 154652 Invalid, 0 Unknown, 0 Unchecked, 33.0s Time] [2022-03-03 16:34:25,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764290 states. [2022-03-03 16:34:30,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764290 to 32595. [2022-03-03 16:34:30,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32595 states, 32594 states have (on average 1.8841197766460085) internal successors, (61411), 32594 states have internal predecessors, (61411), 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) [2022-03-03 16:34:30,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32595 states to 32595 states and 61411 transitions. [2022-03-03 16:34:30,603 INFO L78 Accepts]: Start accepts. Automaton has 32595 states and 61411 transitions. Word has length 438 [2022-03-03 16:34:30,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:34:30,603 INFO L470 AbstractCegarLoop]: Abstraction has 32595 states and 61411 transitions. [2022-03-03 16:34:30,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:34:30,604 INFO L276 IsEmpty]: Start isEmpty. Operand 32595 states and 61411 transitions. [2022-03-03 16:34:30,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-03-03 16:34:30,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:34:30,644 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:34:30,678 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-03 16:34:30,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-03 16:34:30,863 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:34:30,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:34:30,863 INFO L85 PathProgramCache]: Analyzing trace with hash -2051785962, now seen corresponding path program 11 times [2022-03-03 16:34:30,863 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:34:30,863 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776062621] [2022-03-03 16:34:30,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:34:30,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:34:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:34:33,914 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:34:33,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:34:33,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776062621] [2022-03-03 16:34:33,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776062621] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:34:33,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405514988] [2022-03-03 16:34:33,915 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-03 16:34:33,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:34:33,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:34:33,916 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:34:33,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-03 16:34:34,226 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2022-03-03 16:34:34,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:34:34,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-03-03 16:34:34,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:34:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:34:35,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:34:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:34:36,672 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405514988] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:34:36,672 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:34:36,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-03-03 16:34:36,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512275570] [2022-03-03 16:34:36,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:34:36,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-03 16:34:36,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:34:36,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-03 16:34:36,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 16:34:36,674 INFO L87 Difference]: Start difference. First operand 32595 states and 61411 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:35:37,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:35:37,096 INFO L93 Difference]: Finished difference Result 746382 states and 1431433 transitions. [2022-03-03 16:35:37,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 938 states. [2022-03-03 16:35:37,096 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-03-03 16:35:37,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:35:39,022 INFO L225 Difference]: With dead ends: 746382 [2022-03-03 16:35:39,022 INFO L226 Difference]: Without dead ends: 746369 [2022-03-03 16:35:39,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1816 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 942 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368506 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=3610, Invalid=886582, Unknown=0, NotChecked=0, Total=890192 [2022-03-03 16:35:39,065 INFO L933 BasicCegarLoop]: 13826 mSDtfsCounter, 16117 mSDsluCounter, 1147131 mSDsCounter, 0 mSdLazyCounter, 155287 mSolverCounterSat, 970 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16117 SdHoareTripleChecker+Valid, 1159315 SdHoareTripleChecker+Invalid, 156257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.0s SdHoareTripleChecker+Time, 970 IncrementalHoareTripleChecker+Valid, 155287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2022-03-03 16:35:39,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16117 Valid, 1159315 Invalid, 156257 Unknown, 0 Unchecked, 1.0s Time], IncrementalHoareTripleChecker [970 Valid, 155287 Invalid, 0 Unknown, 0 Unchecked, 31.7s Time] [2022-03-03 16:35:39,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746369 states. [2022-03-03 16:35:44,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746369 to 32679. [2022-03-03 16:35:44,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32679 states, 32678 states have (on average 1.8846624640430871) internal successors, (61587), 32678 states have internal predecessors, (61587), 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) [2022-03-03 16:35:44,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32679 states to 32679 states and 61587 transitions. [2022-03-03 16:35:44,823 INFO L78 Accepts]: Start accepts. Automaton has 32679 states and 61587 transitions. Word has length 438 [2022-03-03 16:35:44,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:35:44,824 INFO L470 AbstractCegarLoop]: Abstraction has 32679 states and 61587 transitions. [2022-03-03 16:35:44,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:35:44,825 INFO L276 IsEmpty]: Start isEmpty. Operand 32679 states and 61587 transitions. [2022-03-03 16:35:44,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-03-03 16:35:44,869 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:35:44,869 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:35:44,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-03 16:35:45,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-03 16:35:45,074 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:35:45,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:35:45,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1995053348, now seen corresponding path program 12 times [2022-03-03 16:35:45,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:35:45,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905067733] [2022-03-03 16:35:45,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:35:45,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:35:45,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:35:48,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:35:48,212 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:35:48,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905067733] [2022-03-03 16:35:48,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905067733] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:35:48,212 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524993779] [2022-03-03 16:35:48,212 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-03 16:35:48,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:35:48,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:35:48,213 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:35:48,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-03 16:35:48,655 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2022-03-03 16:35:48,655 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:35:48,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-03-03 16:35:48,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:35:49,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:35:49,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:35:51,139 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:35:51,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524993779] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:35:51,139 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:35:51,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-03-03 16:35:51,139 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007287977] [2022-03-03 16:35:51,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:35:51,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-03 16:35:51,140 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:35:51,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-03 16:35:51,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 16:35:51,141 INFO L87 Difference]: Start difference. First operand 32679 states and 61587 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:37:00,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:37:00,039 INFO L93 Difference]: Finished difference Result 736738 states and 1412969 transitions. [2022-03-03 16:37:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 934 states. [2022-03-03 16:37:00,040 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-03-03 16:37:00,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:37:03,239 INFO L225 Difference]: With dead ends: 736738 [2022-03-03 16:37:03,240 INFO L226 Difference]: Without dead ends: 736725 [2022-03-03 16:37:03,287 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1812 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 938 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365080 ImplicationChecksByTransitivity, 27.7s TimeCoverageRelationStatistics Valid=3594, Invalid=879066, Unknown=0, NotChecked=0, Total=882660 [2022-03-03 16:37:03,287 INFO L933 BasicCegarLoop]: 13738 mSDtfsCounter, 15993 mSDsluCounter, 1126105 mSDsCounter, 0 mSdLazyCounter, 152771 mSolverCounterSat, 966 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15993 SdHoareTripleChecker+Valid, 1138221 SdHoareTripleChecker+Invalid, 153737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 966 IncrementalHoareTripleChecker+Valid, 152771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.8s IncrementalHoareTripleChecker+Time [2022-03-03 16:37:03,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15993 Valid, 1138221 Invalid, 153737 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [966 Valid, 152771 Invalid, 0 Unknown, 0 Unchecked, 36.8s Time] [2022-03-03 16:37:04,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736725 states. [2022-03-03 16:37:09,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736725 to 32917. [2022-03-03 16:37:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32917 states, 32916 states have (on average 1.8857090776522056) internal successors, (62070), 32916 states have internal predecessors, (62070), 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) [2022-03-03 16:37:09,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32917 states to 32917 states and 62070 transitions. [2022-03-03 16:37:09,762 INFO L78 Accepts]: Start accepts. Automaton has 32917 states and 62070 transitions. Word has length 438 [2022-03-03 16:37:09,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:37:09,763 INFO L470 AbstractCegarLoop]: Abstraction has 32917 states and 62070 transitions. [2022-03-03 16:37:09,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:37:09,763 INFO L276 IsEmpty]: Start isEmpty. Operand 32917 states and 62070 transitions. [2022-03-03 16:37:09,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-03-03 16:37:09,804 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:37:09,804 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:37:09,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-03 16:37:10,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-03 16:37:10,026 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:37:10,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:37:10,033 INFO L85 PathProgramCache]: Analyzing trace with hash 561129814, now seen corresponding path program 13 times [2022-03-03 16:37:10,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:37:10,039 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427828230] [2022-03-03 16:37:10,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:37:10,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:37:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:37:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:37:12,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:37:12,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427828230] [2022-03-03 16:37:12,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427828230] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:37:12,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294463740] [2022-03-03 16:37:12,599 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-03 16:37:12,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:37:12,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:37:12,609 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:37:12,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-03 16:37:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:37:12,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-03-03 16:37:12,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:37:14,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:37:14,493 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:37:15,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:37:15,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294463740] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:37:15,628 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:37:15,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-03-03 16:37:15,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644313194] [2022-03-03 16:37:15,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:37:15,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-03 16:37:15,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:37:15,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-03 16:37:15,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 16:37:15,630 INFO L87 Difference]: Start difference. First operand 32917 states and 62070 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:38:17,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:38:17,748 INFO L93 Difference]: Finished difference Result 728152 states and 1396666 transitions. [2022-03-03 16:38:17,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 930 states. [2022-03-03 16:38:17,749 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-03-03 16:38:17,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:38:19,770 INFO L225 Difference]: With dead ends: 728152 [2022-03-03 16:38:19,770 INFO L226 Difference]: Without dead ends: 728139 [2022-03-03 16:38:19,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1808 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 934 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 361670 ImplicationChecksByTransitivity, 24.2s TimeCoverageRelationStatistics Valid=3578, Invalid=871582, Unknown=0, NotChecked=0, Total=875160 [2022-03-03 16:38:19,820 INFO L933 BasicCegarLoop]: 13650 mSDtfsCounter, 15871 mSDsluCounter, 1105276 mSDsCounter, 0 mSdLazyCounter, 150251 mSolverCounterSat, 962 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15871 SdHoareTripleChecker+Valid, 1117324 SdHoareTripleChecker+Invalid, 151213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.9s SdHoareTripleChecker+Time, 962 IncrementalHoareTripleChecker+Valid, 150251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:38:19,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15871 Valid, 1117324 Invalid, 151213 Unknown, 0 Unchecked, 0.9s Time], IncrementalHoareTripleChecker [962 Valid, 150251 Invalid, 0 Unknown, 0 Unchecked, 32.4s Time] [2022-03-03 16:38:20,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728139 states. [2022-03-03 16:38:25,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728139 to 33320. [2022-03-03 16:38:25,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33320 states, 33319 states have (on average 1.8867613073621656) internal successors, (62865), 33319 states have internal predecessors, (62865), 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) [2022-03-03 16:38:25,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33320 states to 33320 states and 62865 transitions. [2022-03-03 16:38:25,408 INFO L78 Accepts]: Start accepts. Automaton has 33320 states and 62865 transitions. Word has length 438 [2022-03-03 16:38:25,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:38:25,427 INFO L470 AbstractCegarLoop]: Abstraction has 33320 states and 62865 transitions. [2022-03-03 16:38:25,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:38:25,428 INFO L276 IsEmpty]: Start isEmpty. Operand 33320 states and 62865 transitions. [2022-03-03 16:38:25,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-03-03 16:38:25,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:38:25,501 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:38:25,533 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-03 16:38:25,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-03 16:38:25,727 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:38:25,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:38:25,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1342517092, now seen corresponding path program 14 times [2022-03-03 16:38:25,728 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:38:25,728 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985625042] [2022-03-03 16:38:25,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:38:25,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:38:25,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:38:28,617 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:38:28,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:38:28,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985625042] [2022-03-03 16:38:28,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985625042] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:38:28,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924388427] [2022-03-03 16:38:28,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 16:38:28,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:38:28,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:38:28,618 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:38:28,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-03 16:38:28,907 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 16:38:28,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:38:28,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-03-03 16:38:28,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:38:29,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:38:29,699 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:38:30,976 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:38:30,976 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924388427] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:38:30,976 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:38:30,977 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-03-03 16:38:30,977 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126249829] [2022-03-03 16:38:30,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:38:30,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-03 16:38:30,978 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:38:30,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-03 16:38:30,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 16:38:30,979 INFO L87 Difference]: Start difference. First operand 33320 states and 62865 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:39:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 16:39:35,339 INFO L93 Difference]: Finished difference Result 720961 states and 1383050 transitions. [2022-03-03 16:39:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 926 states. [2022-03-03 16:39:35,339 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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 438 [2022-03-03 16:39:35,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 16:39:37,584 INFO L225 Difference]: With dead ends: 720961 [2022-03-03 16:39:37,584 INFO L226 Difference]: Without dead ends: 720948 [2022-03-03 16:39:37,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1804 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 930 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 358276 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=3562, Invalid=864130, Unknown=0, NotChecked=0, Total=867692 [2022-03-03 16:39:37,631 INFO L933 BasicCegarLoop]: 13562 mSDtfsCounter, 15749 mSDsluCounter, 1098148 mSDsCounter, 0 mSdLazyCounter, 149593 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15749 SdHoareTripleChecker+Valid, 1110108 SdHoareTripleChecker+Invalid, 150551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.2s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 149593 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.4s IncrementalHoareTripleChecker+Time [2022-03-03 16:39:37,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15749 Valid, 1110108 Invalid, 150551 Unknown, 0 Unchecked, 1.2s Time], IncrementalHoareTripleChecker [958 Valid, 149593 Invalid, 0 Unknown, 0 Unchecked, 33.4s Time] [2022-03-03 16:39:38,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720948 states. [2022-03-03 16:39:43,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720948 to 33888. [2022-03-03 16:39:43,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33888 states, 33887 states have (on average 1.887803582494762) internal successors, (63972), 33887 states have internal predecessors, (63972), 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) [2022-03-03 16:39:43,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33888 states to 33888 states and 63972 transitions. [2022-03-03 16:39:43,232 INFO L78 Accepts]: Start accepts. Automaton has 33888 states and 63972 transitions. Word has length 438 [2022-03-03 16:39:43,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 16:39:43,232 INFO L470 AbstractCegarLoop]: Abstraction has 33888 states and 63972 transitions. [2022-03-03 16:39:43,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) [2022-03-03 16:39:43,233 INFO L276 IsEmpty]: Start isEmpty. Operand 33888 states and 63972 transitions. [2022-03-03 16:39:43,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2022-03-03 16:39:43,520 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 16:39:43,520 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 16:39:43,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-03 16:39:43,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-03 16:39:43,747 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2022-03-03 16:39:43,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 16:39:43,747 INFO L85 PathProgramCache]: Analyzing trace with hash 764110742, now seen corresponding path program 15 times [2022-03-03 16:39:43,747 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 16:39:43,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035448087] [2022-03-03 16:39:43,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 16:39:43,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 16:39:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 16:39:46,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:39:46,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 16:39:46,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035448087] [2022-03-03 16:39:46,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035448087] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 16:39:46,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103853812] [2022-03-03 16:39:46,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 16:39:46,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:39:46,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 16:39:46,849 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 16:39:46,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-03 16:39:47,405 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2022-03-03 16:39:47,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 16:39:47,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1079 conjuncts, 165 conjunts are in the unsatisfiable core [2022-03-03 16:39:47,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 16:39:49,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:39:49,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 16:39:50,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3650 backedges. 0 proven. 3650 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 16:39:50,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103853812] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 16:39:50,816 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 16:39:50,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85, 85] total 87 [2022-03-03 16:39:50,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549850674] [2022-03-03 16:39:50,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 16:39:50,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-03-03 16:39:50,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 16:39:50,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-03-03 16:39:50,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=7309, Unknown=0, NotChecked=0, Total=7482 [2022-03-03 16:39:50,818 INFO L87 Difference]: Start difference. First operand 33888 states and 63972 transitions. Second operand has 87 states, 87 states have (on average 5.080459770114943) internal successors, (442), 87 states have internal predecessors, (442), 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) Received shutdown request... [2022-03-03 16:40:49,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 902 states. [2022-03-03 16:40:49,149 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 16:40:49,149 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-03 16:40:49,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1798 GetRequests, 868 SyntacticMatches, 6 SemanticMatches, 924 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353221 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=3529, Invalid=853021, Unknown=0, NotChecked=0, Total=856550 [2022-03-03 16:40:49,213 INFO L933 BasicCegarLoop]: 12984 mSDtfsCounter, 14183 mSDsluCounter, 1063485 mSDsCounter, 0 mSdLazyCounter, 145026 mSolverCounterSat, 936 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14183 SdHoareTripleChecker+Valid, 1076426 SdHoareTripleChecker+Invalid, 145962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.8s SdHoareTripleChecker+Time, 936 IncrementalHoareTripleChecker+Valid, 145026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.7s IncrementalHoareTripleChecker+Time [2022-03-03 16:40:49,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14183 Valid, 1076426 Invalid, 145962 Unknown, 0 Unchecked, 0.8s Time], IncrementalHoareTripleChecker [936 Valid, 145026 Invalid, 0 Unknown, 0 Unchecked, 30.7s Time] [2022-03-03 16:40:49,214 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-03-03 16:40:49,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-03 16:40:49,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 16:40:49,435 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (33888states) and FLOYD_HOARE automaton (currently 902 states, 87 states before enhancement),while ReachableStatesComputation was computing reachable states (481186 states constructed, input type IntersectNwa). [2022-03-03 16:40:49,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 2 remaining) [2022-03-03 16:40:49,438 INFO L732 BasicCegarLoop]: Path program histogram: [15, 1, 1, 1] [2022-03-03 16:40:49,440 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 16:40:49,440 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 16:40:49,441 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 04:40:49 BasicIcfg [2022-03-03 16:40:49,441 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 16:40:49,442 INFO L158 Benchmark]: Toolchain (without parser) took 798571.34ms. Allocated memory was 196.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 169.9MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-03-03 16:40:49,442 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 196.1MB. Free memory was 159.2MB in the beginning and 159.0MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 16:40:49,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 611.95ms. Allocated memory is still 196.1MB. Free memory was 169.6MB in the beginning and 142.2MB in the end (delta: 27.4MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2022-03-03 16:40:49,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.19ms. Allocated memory is still 196.1MB. Free memory was 142.2MB in the beginning and 139.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 16:40:49,442 INFO L158 Benchmark]: Boogie Preprocessor took 15.52ms. Allocated memory is still 196.1MB. Free memory was 139.8MB in the beginning and 138.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-03 16:40:49,442 INFO L158 Benchmark]: RCFGBuilder took 471.26ms. Allocated memory is still 196.1MB. Free memory was 138.3MB in the beginning and 125.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-03-03 16:40:49,443 INFO L158 Benchmark]: TraceAbstraction took 797436.40ms. Allocated memory was 196.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 125.4MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. [2022-03-03 16:40:49,462 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 196.1MB. Free memory was 159.2MB in the beginning and 159.0MB in the end (delta: 118.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 611.95ms. Allocated memory is still 196.1MB. Free memory was 169.6MB in the beginning and 142.2MB in the end (delta: 27.4MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 31.19ms. Allocated memory is still 196.1MB. Free memory was 142.2MB in the beginning and 139.8MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.52ms. Allocated memory is still 196.1MB. Free memory was 139.8MB in the beginning and 138.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 471.26ms. Allocated memory is still 196.1MB. Free memory was 138.3MB in the beginning and 125.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 797436.40ms. Allocated memory was 196.1MB in the beginning and 7.9GB in the end (delta: 7.7GB). Free memory was 125.4MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 3.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 13]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (33888states) and FLOYD_HOARE automaton (currently 902 states, 87 states before enhancement),while ReachableStatesComputation was computing reachable states (481186 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 1343]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (33888states) and FLOYD_HOARE automaton (currently 902 states, 87 states before enhancement),while ReachableStatesComputation was computing reachable states (481186 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 110 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 797.3s, OverallIterations: 18, TraceHistogramMax: 20, PathProgramHistogramMax: 15, EmptinessCheckTime: 0.7s, AutomataDifference: 715.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 152999 SdHoareTripleChecker+Valid, 201.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 152999 mSDsluCounter, 6748025 SdHoareTripleChecker+Invalid, 168.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6673462 mSDsCounter, 10917 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 909074 IncrementalHoareTripleChecker+Invalid, 919991 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10917 mSolverCounterUnsat, 82837 mSDtfsCounter, 909074 mSolverCounterSat, 5.6s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18225 GetRequests, 9447 SyntacticMatches, 38 SemanticMatches, 8740 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6302376 ImplicationChecksByTransitivity, 451.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33888occurred in iteration=17, InterpolantAutomatonStates: 7704, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 31.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 3532455 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 41.4s InterpolantComputationTime, 8836 NumberOfCodeBlocks, 8740 NumberOfCodeBlocksAsserted, 123 NumberOfCheckSat, 13069 ConstructedInterpolants, 0 QuantifiedInterpolants, 61387 SizeOfPredicates, 358 NumberOfNonLiveVariables, 10284 ConjunctsInSsa, 1112 ConjunctsInUnsatCore, 46 InterpolantComputations, 4 PerfectInterpolantSequences, 5776/86780 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown