/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/gemcutter/NewStatesSleepPersistentFixedOrder-VarAbsGlobalSmt.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7707f89-m [2022-11-16 15:00:55,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:00:55,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:00:55,848 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:00:55,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:00:55,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:00:55,850 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:00:55,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:00:55,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:00:55,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:00:55,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:00:55,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:00:55,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:00:55,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:00:55,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:00:55,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:00:55,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:00:55,857 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:00:55,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:00:55,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:00:55,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:00:55,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:00:55,862 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:00:55,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:00:55,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:00:55,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:00:55,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:00:55,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:00:55,865 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:00:55,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:00:55,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:00:55,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:00:55,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:00:55,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:00:55,868 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:00:55,868 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:00:55,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:00:55,869 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:00:55,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:00:55,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:00:55,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:00:55,872 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder-VarAbsGlobalSmt.epf [2022-11-16 15:00:55,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:00:55,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:00:55,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:00:55,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:00:55,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:00:55,886 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:00:55,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 15:00:55,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 15:00:55,886 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 15:00:55,886 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:00:55,887 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:00:55,887 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:00:55,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 15:00:55,888 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-11-16 15:00:55,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-11-16 15:00:55,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:00:55,889 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-11-16 15:00:55,889 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-11-16 15:00:55,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2022-11-16 15:00:56,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:00:56,111 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:00:56,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:00:56,113 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:00:56,114 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:00:56,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c [2022-11-16 15:00:56,158 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190e2c307/320acef5991047fc8cfcb9824566ea30/FLAGbd6749eb7 [2022-11-16 15:00:56,463 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:00:56,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c [2022-11-16 15:00:56,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190e2c307/320acef5991047fc8cfcb9824566ea30/FLAGbd6749eb7 [2022-11-16 15:00:56,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/190e2c307/320acef5991047fc8cfcb9824566ea30 [2022-11-16 15:00:56,907 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:00:56,908 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-11-16 15:00:56,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:00:56,910 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:00:56,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:00:56,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:00:56" (1/1) ... [2022-11-16 15:00:56,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d529208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:56, skipping insertion in model container [2022-11-16 15:00:56,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:00:56" (1/1) ... [2022-11-16 15:00:56,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:00:56,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:00:57,042 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c[2554,2567] [2022-11-16 15:00:57,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:00:57,049 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:00:57,062 WARN L233 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-misc-2.wvr.c[2554,2567] [2022-11-16 15:00:57,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:00:57,071 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:00:57,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57 WrapperNode [2022-11-16 15:00:57,071 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:00:57,072 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:00:57,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:00:57,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:00:57,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,090 INFO L138 Inliner]: procedures = 21, calls = 28, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2022-11-16 15:00:57,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:00:57,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:00:57,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:00:57,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:00:57,096 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,103 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:00:57,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:00:57,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:00:57,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:00:57,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (1/1) ... [2022-11-16 15:00:57,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:00:57,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:00:57,148 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) [2022-11-16 15:00:57,151 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 [2022-11-16 15:00:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:00:57,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-16 15:00:57,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-16 15:00:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-16 15:00:57,187 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-16 15:00:57,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:00:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:00:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:00:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-16 15:00:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-16 15:00:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:00:57,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:00:57,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:00:57,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:00:57,192 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 15:00:57,255 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:00:57,256 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:00:57,460 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:00:57,475 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:00:57,475 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 15:00:57,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:00:57 BoogieIcfgContainer [2022-11-16 15:00:57,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:00:57,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:00:57,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:00:57,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:00:57,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:00:56" (1/3) ... [2022-11-16 15:00:57,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f0b455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:00:57, skipping insertion in model container [2022-11-16 15:00:57,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:57" (2/3) ... [2022-11-16 15:00:57,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f0b455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:00:57, skipping insertion in model container [2022-11-16 15:00:57,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:00:57" (3/3) ... [2022-11-16 15:00:57,482 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-misc-2.wvr.c [2022-11-16 15:00:57,486 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-16 15:00:57,492 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:00:57,492 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:00:57,492 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 15:00:57,537 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-16 15:00:57,569 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:00:57,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-11-16 15:00:57,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:00:57,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-11-16 15:00:57,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-11-16 15:00:57,615 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-11-16 15:00:57,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2022-11-16 15:00:57,628 INFO L357 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=PARTIAL_ORDER_FA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@49f586c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:00:57,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:00:57,837 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:00:57,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:00:57,841 INFO L85 PathProgramCache]: Analyzing trace with hash 915672511, now seen corresponding path program 1 times [2022-11-16 15:00:57,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:00:57,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493908670] [2022-11-16 15:00:57,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:00:57,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:00:57,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:00:57,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:00:57,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:00:57,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493908670] [2022-11-16 15:00:57,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493908670] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:00:57,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:00:57,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:00:57,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008878680] [2022-11-16 15:00:57,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:00:57,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 15:00:57,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:00:58,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 15:00:58,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 15:00:58,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:00:58,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.5) internal successors, (71), 2 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 15:00:58,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:00:58,069 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:00:58,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:00:58,070 INFO L85 PathProgramCache]: Analyzing trace with hash -1825751376, now seen corresponding path program 1 times [2022-11-16 15:00:58,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:00:58,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709376094] [2022-11-16 15:00:58,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:00:58,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:00:58,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:00:58,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:00:58,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:00:58,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709376094] [2022-11-16 15:00:58,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709376094] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:00:58,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:00:58,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 15:00:58,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514698048] [2022-11-16 15:00:58,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:00:58,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 15:00:58,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:00:58,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 15:00:58,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 15:00:58,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,511 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:00:58,512 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 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) [2022-11-16 15:00:58,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:00:58,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:00:58,602 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:00:58,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:00:58,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1181472902, now seen corresponding path program 1 times [2022-11-16 15:00:58,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:00:58,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173355422] [2022-11-16 15:00:58,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:00:58,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:00:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:00:58,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:00:58,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:00:58,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173355422] [2022-11-16 15:00:58,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173355422] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:00:58,815 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:00:58,815 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 15:00:58,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448103803] [2022-11-16 15:00:58,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:00:58,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 15:00:58,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:00:58,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 15:00:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 15:00:58,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,820 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:00:58,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 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) [2022-11-16 15:00:58,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,823 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:00:58,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:00:58,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:00:58,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 15:00:58,980 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:00:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:00:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 912764483, now seen corresponding path program 1 times [2022-11-16 15:00:58,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:00:58,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954563694] [2022-11-16 15:00:58,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:00:58,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:00:59,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:00:59,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:00:59,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:00:59,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954563694] [2022-11-16 15:00:59,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954563694] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:00:59,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255099108] [2022-11-16 15:00:59,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:00:59,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:00:59,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:00:59,204 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) [2022-11-16 15:00:59,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 15:00:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:00:59,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 15:00:59,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:00:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:00:59,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:00:59,727 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:00:59,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255099108] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:00:59,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:00:59,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2022-11-16 15:00:59,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909877012] [2022-11-16 15:00:59,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:00:59,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 15:00:59,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:00:59,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 15:00:59,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-11-16 15:00:59,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:59,731 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:00:59,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.76923076923077) internal successors, (127), 13 states have internal predecessors, (127), 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) [2022-11-16 15:00:59,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:59,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:00:59,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:00:59,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:59,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:00:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:00:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:00:59,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:00:59,966 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 15:01:00,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-16 15:01:00,150 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:00,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:00,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1229763181, now seen corresponding path program 1 times [2022-11-16 15:01:00,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:00,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964854618] [2022-11-16 15:01:00,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:00,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:01:00,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:00,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964854618] [2022-11-16 15:01:00,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964854618] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:01:00,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285080770] [2022-11-16 15:01:00,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:00,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:00,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:01:00,500 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) [2022-11-16 15:01:00,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 15:01:00,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:00,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 177 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 15:01:00,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:01:00,815 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:01:00,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:01:01,018 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:01:01,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285080770] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:01:01,019 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:01:01,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-11-16 15:01:01,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286946430] [2022-11-16 15:01:01,020 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:01:01,020 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 15:01:01,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:01:01,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 15:01:01,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-11-16 15:01:01,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:01,022 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:01:01,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.0) internal successors, (144), 18 states have internal predecessors, (144), 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) [2022-11-16 15:01:01,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:01,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:01,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:01,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:01,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:01,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 15:01:01,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:01,529 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:01,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:01,530 INFO L85 PathProgramCache]: Analyzing trace with hash -1387998141, now seen corresponding path program 2 times [2022-11-16 15:01:01,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:01,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297124117] [2022-11-16 15:01:01,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:01,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:01,650 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:01:01,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:01,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297124117] [2022-11-16 15:01:01,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297124117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:01:01,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:01:01,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 15:01:01,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354389221] [2022-11-16 15:01:01,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:01:01,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:01:01,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:01:01,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:01:01,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:01:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:01,656 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:01:01,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 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) [2022-11-16 15:01:01,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:01,659 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:01,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:01,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:01,660 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:01,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:01,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:01,694 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 15:01:01,695 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:01,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:01,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1031760797, now seen corresponding path program 1 times [2022-11-16 15:01:01,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:01,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128527474] [2022-11-16 15:01:01,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:01,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:01,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 15:01:01,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:01,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128527474] [2022-11-16 15:01:01,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128527474] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:01:01,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014783094] [2022-11-16 15:01:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:01,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:01,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:01:01,950 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) [2022-11-16 15:01:01,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 15:01:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:02,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 15:01:02,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:01:02,186 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 15:01:02,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:01:02,382 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 15:01:02,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014783094] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:01:02,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:01:02,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-11-16 15:01:02,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872809992] [2022-11-16 15:01:02,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:01:02,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 15:01:02,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:01:02,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 15:01:02,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2022-11-16 15:01:02,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:02,384 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:01:02,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.388888888888889) internal successors, (133), 18 states have internal predecessors, (133), 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) [2022-11-16 15:01:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:02,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:02,653 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 15:01:02,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:02,860 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2110017872, now seen corresponding path program 2 times [2022-11-16 15:01:02,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:02,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263265956] [2022-11-16 15:01:02,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:02,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 15:01:02,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:02,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263265956] [2022-11-16 15:01:02,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263265956] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:01:02,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:01:02,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 15:01:02,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273755617] [2022-11-16 15:01:02,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:01:02,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:01:02,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:01:02,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:01:02,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 15:01:02,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:02,986 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:01:02,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 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) [2022-11-16 15:01:02,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:02,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:02,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:02,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:02,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:02,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:02,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:02,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:03,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 15:01:03,034 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:03,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:03,034 INFO L85 PathProgramCache]: Analyzing trace with hash -147448112, now seen corresponding path program 1 times [2022-11-16 15:01:03,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:03,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883592965] [2022-11-16 15:01:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:03,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:01:03,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:03,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883592965] [2022-11-16 15:01:03,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883592965] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:01:03,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896583174] [2022-11-16 15:01:03,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:03,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:03,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:01:03,336 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) [2022-11-16 15:01:03,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 15:01:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:03,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 15:01:03,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:01:03,548 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:01:03,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:01:03,650 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:01:03,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896583174] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:01:03,651 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:01:03,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-11-16 15:01:03,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585122273] [2022-11-16 15:01:03,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:01:03,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 15:01:03,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:01:03,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 15:01:03,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-16 15:01:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:03,653 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:01:03,653 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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) [2022-11-16 15:01:03,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:03,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:03,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:03,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:03,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:03,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:03,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:03,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:03,654 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:03,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:03,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 15:01:04,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:04,026 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:04,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:04,027 INFO L85 PathProgramCache]: Analyzing trace with hash -859007898, now seen corresponding path program 2 times [2022-11-16 15:01:04,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:04,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016457977] [2022-11-16 15:01:04,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:04,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:04,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:04,423 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:01:04,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:04,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016457977] [2022-11-16 15:01:04,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016457977] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:01:04,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [814484802] [2022-11-16 15:01:04,424 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 15:01:04,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:04,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:01:04,436 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) [2022-11-16 15:01:04,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 15:01:04,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 15:01:04,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:01:04,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-16 15:01:04,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:01:05,061 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 15:01:05,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:01:06,014 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-16 15:01:06,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [814484802] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:01:06,014 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:01:06,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 37 [2022-11-16 15:01:06,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78018262] [2022-11-16 15:01:06,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:01:06,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-11-16 15:01:06,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:01:06,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-11-16 15:01:06,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1213, Unknown=0, NotChecked=0, Total=1332 [2022-11-16 15:01:06,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:06,016 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:01:06,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 5.783783783783784) internal successors, (214), 37 states have internal predecessors, (214), 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) [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:06,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:14,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 15:01:14,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-11-16 15:01:14,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 15:01:14,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:14,787 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:14,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:14,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1647065744, now seen corresponding path program 3 times [2022-11-16 15:01:14,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:14,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517258873] [2022-11-16 15:01:14,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:14,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:14,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:15,090 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:01:15,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:15,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517258873] [2022-11-16 15:01:15,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517258873] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:01:15,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498090150] [2022-11-16 15:01:15,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 15:01:15,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:15,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:01:15,092 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) [2022-11-16 15:01:15,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 15:01:15,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-16 15:01:15,189 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:01:15,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-16 15:01:15,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:01:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:01:15,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:01:15,427 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:01:15,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498090150] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:01:15,427 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:01:15,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 11 [2022-11-16 15:01:15,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687449787] [2022-11-16 15:01:15,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:01:15,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 15:01:15,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:01:15,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 15:01:15,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-16 15:01:15,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:15,431 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:01:15,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 9.181818181818182) internal successors, (101), 11 states have internal predecessors, (101), 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) [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-11-16 15:01:15,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:17,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-11-16 15:01:17,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:17,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 15:01:17,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:17,398 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:17,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:17,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1447690813, now seen corresponding path program 4 times [2022-11-16 15:01:17,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:17,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850266510] [2022-11-16 15:01:17,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:17,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:17,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:18,028 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 20 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:01:18,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:18,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850266510] [2022-11-16 15:01:18,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850266510] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:01:18,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641903381] [2022-11-16 15:01:18,029 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-16 15:01:18,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:18,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:01:18,031 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) [2022-11-16 15:01:18,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 15:01:18,277 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-16 15:01:18,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:01:18,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 15:01:18,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:01:18,703 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-16 15:01:18,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:01:20,275 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-16 15:01:20,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641903381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:01:20,275 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 15:01:20,275 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 12] total 39 [2022-11-16 15:01:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087629051] [2022-11-16 15:01:20,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 15:01:20,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-11-16 15:01:20,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 15:01:20,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-11-16 15:01:20,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1357, Unknown=0, NotChecked=0, Total=1482 [2022-11-16 15:01:20,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:20,277 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-11-16 15:01:20,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 5.282051282051282) internal successors, (206), 39 states have internal predecessors, (206), 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) [2022-11-16 15:01:20,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:20,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:20,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:20,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:20,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:20,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:20,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:20,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:20,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-11-16 15:01:20,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-11-16 15:01:20,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:20,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:24,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 15:01:24,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-16 15:01:24,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-16 15:01:24,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-11-16 15:01:24,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 15:01:25,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 15:01:25,190 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:01:25,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:01:25,190 INFO L85 PathProgramCache]: Analyzing trace with hash 2011523302, now seen corresponding path program 5 times [2022-11-16 15:01:25,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 15:01:25,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774609097] [2022-11-16 15:01:25,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:01:25,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:01:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:01:30,860 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 130 proven. 53 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-16 15:01:30,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 15:01:30,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774609097] [2022-11-16 15:01:30,861 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774609097] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:01:30,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574585389] [2022-11-16 15:01:30,861 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-11-16 15:01:30,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:01:30,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-11-16 15:01:30,864 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) [2022-11-16 15:01:30,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-16 15:01:31,222 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-11-16 15:01:31,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 15:01:31,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 51 conjunts are in the unsatisfiable core [2022-11-16 15:01:31,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:01:34,203 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 40 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:01:34,203 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:02:49,563 WARN L233 SmtUtils]: Spent 1.20m on a formula simplification. DAG size of input: 7788 DAG size of output: 7729 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)