/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.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-lit/sssc12.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 17:02:47,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 17:02:47,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 17:02:47,059 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 17:02:47,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 17:02:47,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 17:02:47,068 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 17:02:47,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 17:02:47,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 17:02:47,079 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 17:02:47,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 17:02:47,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 17:02:47,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 17:02:47,084 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 17:02:47,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 17:02:47,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 17:02:47,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 17:02:47,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 17:02:47,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 17:02:47,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 17:02:47,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 17:02:47,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 17:02:47,100 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 17:02:47,101 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 17:02:47,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 17:02:47,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 17:02:47,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 17:02:47,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 17:02:47,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 17:02:47,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 17:02:47,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 17:02:47,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 17:02:47,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 17:02:47,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 17:02:47,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 17:02:47,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 17:02:47,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 17:02:47,112 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 17:02:47,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 17:02:47,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 17:02:47,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 17:02:47,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 17:02:47,152 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 17:02:47,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 17:02:47,153 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 17:02:47,153 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 17:02:47,154 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 17:02:47,154 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 17:02:47,155 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 17:02:47,155 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 17:02:47,155 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 17:02:47,155 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 17:02:47,156 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 17:02:47,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 17:02:47,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 17:02:47,157 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 17:02:47,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 17:02:47,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 17:02:47,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 17:02:47,157 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 17:02:47,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 17:02:47,157 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 17:02:47,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 17:02:47,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 17:02:47,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 17:02:47,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 17:02:47,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 17:02:47,159 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 17:02:47,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 17:02:47,160 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 17:02:47,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 17:02:47,160 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 17:02:47,160 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 17:02:47,160 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 17:02:47,160 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 17:02:47,161 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 17:02:47,161 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 17:02:47,161 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 17:02:47,161 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-04 17:02:47,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 17:02:47,417 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 17:02:47,419 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 17:02:47,420 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 17:02:47,422 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 17:02:47,423 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/sssc12.i [2023-05-04 17:02:47,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b4e538d/ae3926206a6f4e71baed591b72e845c6/FLAGcfb6910ca [2023-05-04 17:02:48,039 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 17:02:48,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i [2023-05-04 17:02:48,056 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b4e538d/ae3926206a6f4e71baed591b72e845c6/FLAGcfb6910ca [2023-05-04 17:02:48,463 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b4e538d/ae3926206a6f4e71baed591b72e845c6 [2023-05-04 17:02:48,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 17:02:48,467 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 17:02:48,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 17:02:48,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 17:02:48,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 17:02:48,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 05:02:48" (1/1) ... [2023-05-04 17:02:48,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f35155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:48, skipping insertion in model container [2023-05-04 17:02:48,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 05:02:48" (1/1) ... [2023-05-04 17:02:48,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 17:02:48,516 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 17:02:48,894 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i[46865,46878] [2023-05-04 17:02:48,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 17:02:48,918 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 17:02:48,973 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/sssc12.i[46865,46878] [2023-05-04 17:02:48,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 17:02:49,020 INFO L208 MainTranslator]: Completed translation [2023-05-04 17:02:49,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49 WrapperNode [2023-05-04 17:02:49,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 17:02:49,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 17:02:49,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 17:02:49,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 17:02:49,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,061 INFO L138 Inliner]: procedures = 275, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 82 [2023-05-04 17:02:49,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 17:02:49,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 17:02:49,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 17:02:49,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 17:02:49,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,080 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,082 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 17:02:49,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 17:02:49,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 17:02:49,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 17:02:49,098 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (1/1) ... [2023-05-04 17:02:49,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 17:02:49,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:02:49,123 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) [2023-05-04 17:02:49,125 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 [2023-05-04 17:02:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-05-04 17:02:49,156 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2023-05-04 17:02:49,157 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2023-05-04 17:02:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 17:02:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 17:02:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-05-04 17:02:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 17:02:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-05-04 17:02:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 17:02:49,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 17:02:49,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 17:02:49,158 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 17:02:49,159 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-04 17:02:49,334 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 17:02:49,336 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 17:02:49,525 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 17:02:49,548 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 17:02:49,548 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-05-04 17:02:49,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 05:02:49 BoogieIcfgContainer [2023-05-04 17:02:49,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 17:02:49,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 17:02:49,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 17:02:49,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 17:02:49,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 05:02:48" (1/3) ... [2023-05-04 17:02:49,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753873a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 05:02:49, skipping insertion in model container [2023-05-04 17:02:49,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 05:02:49" (2/3) ... [2023-05-04 17:02:49,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753873a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 05:02:49, skipping insertion in model container [2023-05-04 17:02:49,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 05:02:49" (3/3) ... [2023-05-04 17:02:49,565 INFO L112 eAbstractionObserver]: Analyzing ICFG sssc12.i [2023-05-04 17:02:49,572 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 17:02:49,580 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 17:02:49,580 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 17:02:49,581 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 17:02:49,640 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 17:02:49,690 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:02:49,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:02:49,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:02:49,697 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) [2023-05-04 17:02:49,708 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 [2023-05-04 17:02:49,731 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:02:49,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 17:02:49,768 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;@88ebe81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:02:49,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 17:02:49,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 17:02:49,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:02:49,905 INFO L85 PathProgramCache]: Analyzing trace with hash 792194211, now seen corresponding path program 1 times [2023-05-04 17:02:49,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:02:49,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173855647] [2023-05-04 17:02:49,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:49,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:02:50,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:50,138 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:02:50,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:02:50,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173855647] [2023-05-04 17:02:50,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173855647] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:02:50,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:02:50,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 17:02:50,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317497613] [2023-05-04 17:02:50,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:02:50,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 17:02:50,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:02:50,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 17:02:50,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 17:02:50,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:50,170 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:02:50,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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) [2023-05-04 17:02:50,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:50,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:50,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 17:02:50,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 17:02:50,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:02:50,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1744097695, now seen corresponding path program 1 times [2023-05-04 17:02:50,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:02:50,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238289387] [2023-05-04 17:02:50,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:50,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:02:50,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 17:02:50,231 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 17:02:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 17:02:50,278 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 17:02:50,279 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 17:02:50,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 17:02:50,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 17:02:50,289 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2023-05-04 17:02:50,294 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (1/2) [2023-05-04 17:02:50,295 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 17:02:50,295 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-05-04 17:02:50,315 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 17:02:50,318 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:02:50,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:02:50,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:02:50,320 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 17:02:50,355 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:02:50,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread2of2ForFork0 ======== [2023-05-04 17:02:50,357 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;@88ebe81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:02:50,357 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 17:02:50,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2023-05-04 17:02:50,577 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:02:50,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:02:50,578 INFO L85 PathProgramCache]: Analyzing trace with hash -779876172, now seen corresponding path program 1 times [2023-05-04 17:02:50,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:02:50,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390281039] [2023-05-04 17:02:50,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:50,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:02:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:50,711 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-05-04 17:02:50,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:02:50,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390281039] [2023-05-04 17:02:50,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390281039] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:02:50,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:02:50,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 17:02:50,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95464693] [2023-05-04 17:02:50,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:02:50,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 17:02:50,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:02:50,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 17:02:50,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 17:02:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:50,716 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:02:50,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 46.0) internal successors, (92), 2 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) [2023-05-04 17:02:50,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:50,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:50,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 17:02:50,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:02:50,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:02:50,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1796805228, now seen corresponding path program 1 times [2023-05-04 17:02:50,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:02:50,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744628350] [2023-05-04 17:02:50,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:50,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:02:50,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:02:51,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:02:51,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744628350] [2023-05-04 17:02:51,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744628350] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:02:51,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853443390] [2023-05-04 17:02:51,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:51,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:51,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:02:51,213 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) [2023-05-04 17:02:51,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-04 17:02:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:51,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 17:02:51,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:02:51,765 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:02:51,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:02:52,010 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:02:52,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853443390] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:02:52,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:02:52,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-05-04 17:02:52,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870558007] [2023-05-04 17:02:52,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:02:52,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 17:02:52,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:02:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 17:02:52,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-05-04 17:02:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:52,013 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:02:52,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.214285714285714) internal successors, (213), 14 states have internal predecessors, (213), 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) [2023-05-04 17:02:52,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:52,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:52,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:02:52,345 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-05-04 17:02:52,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:52,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:02:52,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:02:52,535 INFO L85 PathProgramCache]: Analyzing trace with hash 2092980478, now seen corresponding path program 1 times [2023-05-04 17:02:52,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:02:52,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130296146] [2023-05-04 17:02:52,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:52,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:02:52,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:53,003 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 12 proven. 49 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-04 17:02:53,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:02:53,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130296146] [2023-05-04 17:02:53,003 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130296146] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:02:53,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1549816820] [2023-05-04 17:02:53,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:53,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:53,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:02:53,005 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) [2023-05-04 17:02:53,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-04 17:02:53,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:53,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 289 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 17:02:53,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:02:53,211 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-05-04 17:02:53,212 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 17:02:53,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1549816820] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:02:53,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 17:02:53,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-05-04 17:02:53,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594396932] [2023-05-04 17:02:53,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:02:53,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 17:02:53,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:02:53,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 17:02:53,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-05-04 17:02:53,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:53,216 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:02:53,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2023-05-04 17:02:53,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:53,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:02:53,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:02:53,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:02:53,346 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-04 17:02:53,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:53,533 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:02:53,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:02:53,534 INFO L85 PathProgramCache]: Analyzing trace with hash -114009976, now seen corresponding path program 2 times [2023-05-04 17:02:53,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:02:53,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813844091] [2023-05-04 17:02:53,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:53,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:02:53,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:53,800 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-05-04 17:02:53,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:02:53,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813844091] [2023-05-04 17:02:53,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813844091] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:02:53,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612204047] [2023-05-04 17:02:53,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 17:02:53,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:53,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:02:53,803 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) [2023-05-04 17:02:53,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-04 17:02:53,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 17:02:53,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:02:53,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 19 conjunts are in the unsatisfiable core [2023-05-04 17:02:53,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:02:54,174 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-04 17:02:54,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:02:54,501 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-04 17:02:54,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612204047] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:02:54,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:02:54,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 18 [2023-05-04 17:02:54,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085439830] [2023-05-04 17:02:54,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:02:54,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-05-04 17:02:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:02:54,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-05-04 17:02:54,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2023-05-04 17:02:54,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:54,505 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:02:54,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 12.61111111111111) internal successors, (227), 18 states have internal predecessors, (227), 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) [2023-05-04 17:02:54,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:54,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:02:54,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:02:54,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:54,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:54,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:02:54,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:02:54,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:02:54,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-04 17:02:55,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:55,161 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:02:55,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:02:55,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1670103322, now seen corresponding path program 2 times [2023-05-04 17:02:55,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:02:55,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618666205] [2023-05-04 17:02:55,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:55,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:02:55,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:55,488 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-05-04 17:02:55,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:02:55,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618666205] [2023-05-04 17:02:55,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618666205] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:02:55,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046232724] [2023-05-04 17:02:55,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 17:02:55,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:55,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:02:55,490 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) [2023-05-04 17:02:55,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-04 17:02:55,609 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 17:02:55,609 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:02:55,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 23 conjunts are in the unsatisfiable core [2023-05-04 17:02:55,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:02:55,946 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 0 proven. 109 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-05-04 17:02:55,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:02:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 10 proven. 99 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-05-04 17:02:56,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046232724] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:02:56,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:02:56,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 23 [2023-05-04 17:02:56,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412655858] [2023-05-04 17:02:56,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:02:56,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-05-04 17:02:56,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:02:56,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-05-04 17:02:56,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=424, Unknown=0, NotChecked=0, Total=506 [2023-05-04 17:02:56,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:56,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:02:56,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 12.217391304347826) internal successors, (281), 23 states have internal predecessors, (281), 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) [2023-05-04 17:02:56,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:56,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:02:56,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:02:56,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:02:56,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:02:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:02:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:02:57,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 17:02:57,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-05-04 17:02:57,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:57,359 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:02:57,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:02:57,359 INFO L85 PathProgramCache]: Analyzing trace with hash 1476325182, now seen corresponding path program 3 times [2023-05-04 17:02:57,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:02:57,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167050289] [2023-05-04 17:02:57,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:02:57,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:02:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:02:58,274 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-05-04 17:02:58,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:02:58,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167050289] [2023-05-04 17:02:58,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167050289] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:02:58,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529869745] [2023-05-04 17:02:58,275 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 17:02:58,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:02:58,276 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:02:58,277 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) [2023-05-04 17:02:58,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-04 17:02:58,715 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2023-05-04 17:02:58,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:02:58,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 24 conjunts are in the unsatisfiable core [2023-05-04 17:02:58,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:02:59,278 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-05-04 17:02:59,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:02:59,976 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-05-04 17:02:59,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529869745] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:02:59,976 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:02:59,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2023-05-04 17:02:59,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87995374] [2023-05-04 17:02:59,977 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:02:59,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-05-04 17:02:59,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:02:59,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-05-04 17:02:59,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812 [2023-05-04 17:02:59,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:59,979 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:02:59,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 14.379310344827585) internal successors, (417), 29 states have internal predecessors, (417), 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) [2023-05-04 17:02:59,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:02:59,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:02:59,979 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:02:59,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:02:59,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 17:02:59,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:03:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 17:03:01,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 17:03:01,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-04 17:03:01,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:01,329 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:01,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:01,329 INFO L85 PathProgramCache]: Analyzing trace with hash 849385826, now seen corresponding path program 4 times [2023-05-04 17:03:01,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:01,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678661150] [2023-05-04 17:03:01,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:01,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:01,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:01,860 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 1143 proven. 44 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-04 17:03:01,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:01,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678661150] [2023-05-04 17:03:01,862 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678661150] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:03:01,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672553104] [2023-05-04 17:03:01,862 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 17:03:01,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:01,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:01,866 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) [2023-05-04 17:03:01,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-05-04 17:03:02,018 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 17:03:02,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:03:02,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 13 conjunts are in the unsatisfiable core [2023-05-04 17:03:02,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:03:02,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1223 backedges. 1139 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-05-04 17:03:02,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 17:03:02,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672553104] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:03:02,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 17:03:02,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [14] total 26 [2023-05-04 17:03:02,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775789895] [2023-05-04 17:03:02,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:03:02,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 17:03:02,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:02,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 17:03:02,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-05-04 17:03:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:02,422 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:02,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.642857142857142) internal successors, (247), 14 states have internal predecessors, (247), 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) [2023-05-04 17:03:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:03:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 17:03:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 17:03:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:03:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 17:03:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 17:03:02,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:02,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-05-04 17:03:02,792 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,SelfDestructingSolverStorable8 [2023-05-04 17:03:02,793 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:02,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash -510085167, now seen corresponding path program 1 times [2023-05-04 17:03:02,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:02,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104234882] [2023-05-04 17:03:02,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:02,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:03,165 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 827 proven. 34 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-04 17:03:03,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:03,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104234882] [2023-05-04 17:03:03,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104234882] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:03:03,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042117940] [2023-05-04 17:03:03,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:03,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:03,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:03,167 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) [2023-05-04 17:03:03,194 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-05-04 17:03:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:03,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 13 conjunts are in the unsatisfiable core [2023-05-04 17:03:03,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:03:03,533 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 827 proven. 34 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-04 17:03:03,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:03:03,798 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 827 proven. 34 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-04 17:03:03,799 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042117940] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:03:03,799 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:03:03,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 14 [2023-05-04 17:03:03,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853137867] [2023-05-04 17:03:03,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:03:03,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 17:03:03,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:03,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 17:03:03,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-05-04 17:03:03,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:03,801 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:03,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 14 states have internal predecessors, (246), 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) [2023-05-04 17:03:03,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:03,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:03:03,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:03,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:03,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 17:03:03,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 17:03:03,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:03,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 17:03:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2023-05-04 17:03:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 17:03:05,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:05,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-05-04 17:03:05,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-05-04 17:03:05,665 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:05,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:05,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1394356186, now seen corresponding path program 1 times [2023-05-04 17:03:05,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:05,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559668185] [2023-05-04 17:03:05,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:05,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:05,810 INFO L134 CoverageAnalysis]: Checked inductivity of 564 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 456 trivial. 0 not checked. [2023-05-04 17:03:05,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:05,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559668185] [2023-05-04 17:03:05,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559668185] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:03:05,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:03:05,811 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 17:03:05,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468237778] [2023-05-04 17:03:05,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:03:05,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 17:03:05,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 17:03:05,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 17:03:05,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:05,812 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:05,812 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 4 states have internal predecessors, (103), 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) [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:05,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:11,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:11,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-05-04 17:03:11,166 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:11,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:11,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1326095769, now seen corresponding path program 1 times [2023-05-04 17:03:11,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:11,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729797783] [2023-05-04 17:03:11,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:11,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:11,450 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2023-05-04 17:03:11,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:11,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729797783] [2023-05-04 17:03:11,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729797783] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:03:11,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:03:11,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-04 17:03:11,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354250253] [2023-05-04 17:03:11,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:03:11,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-04 17:03:11,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:11,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-04 17:03:11,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-05-04 17:03:11,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:11,452 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:11,452 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) [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:11,453 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:14,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:14,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:14,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-05-04 17:03:14,222 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:14,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash -620305198, now seen corresponding path program 1 times [2023-05-04 17:03:14,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:14,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761840145] [2023-05-04 17:03:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:14,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:14,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:14,272 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2023-05-04 17:03:14,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:14,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761840145] [2023-05-04 17:03:14,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761840145] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:03:14,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:03:14,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 17:03:14,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648807140] [2023-05-04 17:03:14,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:03:14,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 17:03:14,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:14,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 17:03:14,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 17:03:14,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:14,275 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:14,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:14,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-05-04 17:03:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-05-04 17:03:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-05-04 17:03:19,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:19,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:19,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:19,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:19,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:19,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-05-04 17:03:19,882 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:19,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:19,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1726291576, now seen corresponding path program 2 times [2023-05-04 17:03:19,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:19,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024087131] [2023-05-04 17:03:19,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:19,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:19,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 2 proven. 378 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:03:20,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:20,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024087131] [2023-05-04 17:03:20,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024087131] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:03:20,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [221828802] [2023-05-04 17:03:20,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 17:03:20,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:20,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:20,512 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:03:20,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-05-04 17:03:20,638 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 17:03:20,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:03:20,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 27 conjunts are in the unsatisfiable core [2023-05-04 17:03:20,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:03:21,631 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 333 proven. 57 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:03:21,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:03:22,802 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 336 proven. 54 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:03:22,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [221828802] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:03:22,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:03:22,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 19, 19] total 48 [2023-05-04 17:03:22,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930476917] [2023-05-04 17:03:22,803 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:03:22,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-05-04 17:03:22,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:22,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-05-04 17:03:22,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1920, Unknown=0, NotChecked=0, Total=2256 [2023-05-04 17:03:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:22,805 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:22,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 9.291666666666666) internal successors, (446), 48 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 17:03:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-05-04 17:03:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2023-05-04 17:03:22,805 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2023-05-04 17:03:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:22,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:03:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2023-05-04 17:03:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2023-05-04 17:03:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2023-05-04 17:03:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-04 17:03:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:03:37,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2023-05-04 17:03:37,498 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 17:03:37,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-05-04 17:03:37,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-05-04 17:03:37,703 INFO L444 BasicCegarLoop]: Path program histogram: [4, 2, 2, 1, 1, 1, 1] [2023-05-04 17:03:37,703 INFO L307 ceAbstractionStarter]: Result for error location thrThread2of2ForFork0 was SAFE (1/3) [2023-05-04 17:03:37,706 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:03:37,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:03:37,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:37,709 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 17:03:37,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (12)] Waiting until timeout for monitored process [2023-05-04 17:03:37,717 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:03:37,718 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread1of2ForFork0 ======== [2023-05-04 17:03:37,718 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;@88ebe81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:03:37,718 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 17:03:37,790 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:37,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:37,791 INFO L85 PathProgramCache]: Analyzing trace with hash 524043090, now seen corresponding path program 1 times [2023-05-04 17:03:37,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:37,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039316904] [2023-05-04 17:03:37,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:37,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:37,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:03:37,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:37,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039316904] [2023-05-04 17:03:37,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039316904] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:03:37,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:03:37,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 17:03:37,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133959992] [2023-05-04 17:03:37,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:03:37,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 17:03:37,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:37,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 17:03:37,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 17:03:37,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:37,811 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:37,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 45.0) internal successors, (90), 2 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) [2023-05-04 17:03:37,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:37,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:37,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-05-04 17:03:37,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:37,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:37,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1303773131, now seen corresponding path program 1 times [2023-05-04 17:03:37,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:37,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959329047] [2023-05-04 17:03:37,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:37,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:03:37,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:37,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959329047] [2023-05-04 17:03:37,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959329047] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:03:37,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872818367] [2023-05-04 17:03:37,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:37,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:37,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:37,973 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:03:37,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-05-04 17:03:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:38,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2023-05-04 17:03:38,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:03:38,141 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:03:38,141 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 17:03:38,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872818367] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:03:38,141 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 17:03:38,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2023-05-04 17:03:38,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443582716] [2023-05-04 17:03:38,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:03:38,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 17:03:38,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:38,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 17:03:38,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2023-05-04 17:03:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:38,142 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:38,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.833333333333334) internal successors, (89), 6 states have internal predecessors, (89), 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) [2023-05-04 17:03:38,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:38,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:38,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:03:38,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-05-04 17:03:38,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-05-04 17:03:38,403 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:38,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:38,403 INFO L85 PathProgramCache]: Analyzing trace with hash 988976879, now seen corresponding path program 1 times [2023-05-04 17:03:38,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:38,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328948035] [2023-05-04 17:03:38,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:38,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:38,566 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:03:38,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:38,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328948035] [2023-05-04 17:03:38,567 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328948035] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:03:38,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465695662] [2023-05-04 17:03:38,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:38,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:38,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:38,569 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:03:38,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-05-04 17:03:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:38,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 17:03:38,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:03:38,837 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:03:38,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:03:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:03:39,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465695662] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:03:39,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:03:39,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2023-05-04 17:03:39,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297404494] [2023-05-04 17:03:39,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:03:39,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 17:03:39,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:39,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 17:03:39,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-05-04 17:03:39,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:39,202 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:39,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 15.5) internal successors, (217), 14 states have internal predecessors, (217), 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) [2023-05-04 17:03:39,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:39,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:03:39,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:03:39,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-05-04 17:03:39,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-05-04 17:03:39,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-05-04 17:03:39,539 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:39,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:39,539 INFO L85 PathProgramCache]: Analyzing trace with hash -492800204, now seen corresponding path program 1 times [2023-05-04 17:03:39,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:39,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967078641] [2023-05-04 17:03:39,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:39,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:39,741 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:03:39,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:39,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967078641] [2023-05-04 17:03:39,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967078641] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:03:39,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341262876] [2023-05-04 17:03:39,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:39,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:39,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:39,742 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:03:39,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-05-04 17:03:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:39,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 17:03:39,853 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:03:39,947 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 17:03:39,947 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:03:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-05-04 17:03:40,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341262876] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:03:40,048 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:03:40,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 21 [2023-05-04 17:03:40,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879458554] [2023-05-04 17:03:40,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:03:40,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2023-05-04 17:03:40,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:40,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2023-05-04 17:03:40,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2023-05-04 17:03:40,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:40,050 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:40,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.142857142857142) internal successors, (213), 21 states have internal predecessors, (213), 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) [2023-05-04 17:03:40,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:40,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:03:40,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2023-05-04 17:03:40,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:40,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:03:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:03:40,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:03:40,386 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-05-04 17:03:40,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:40,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:40,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash 59786369, now seen corresponding path program 1 times [2023-05-04 17:03:40,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:40,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468060687] [2023-05-04 17:03:40,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:40,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:40,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 21 proven. 49 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-05-04 17:03:40,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:40,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468060687] [2023-05-04 17:03:40,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468060687] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:03:40,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504223188] [2023-05-04 17:03:40,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:40,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:40,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:40,769 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:03:40,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-05-04 17:03:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:40,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 16 conjunts are in the unsatisfiable core [2023-05-04 17:03:40,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:03:41,235 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-04 17:03:41,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:03:41,572 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 11 proven. 68 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-04 17:03:41,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504223188] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:03:41,572 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:03:41,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 25 [2023-05-04 17:03:41,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992102828] [2023-05-04 17:03:41,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:03:41,573 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-05-04 17:03:41,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:41,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-05-04 17:03:41,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2023-05-04 17:03:41,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:41,574 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:41,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 14.44) internal successors, (361), 25 states have internal predecessors, (361), 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) [2023-05-04 17:03:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:03:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:03:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:03:41,574 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:42,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:42,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:03:42,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:03:42,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:42,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-05-04 17:03:42,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-05-04 17:03:43,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:43,030 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:03:43,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:03:43,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1039898602, now seen corresponding path program 2 times [2023-05-04 17:03:43,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:03:43,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920004793] [2023-05-04 17:03:43,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:03:43,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:03:43,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:03:43,343 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 180 proven. 103 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2023-05-04 17:03:43,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:03:43,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920004793] [2023-05-04 17:03:43,344 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920004793] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:03:43,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238777716] [2023-05-04 17:03:43,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 17:03:43,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:03:43,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:03:43,345 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:03:43,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-05-04 17:03:43,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 17:03:43,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:03:43,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 19 conjunts are in the unsatisfiable core [2023-05-04 17:03:43,484 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:03:44,294 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 307 proven. 40 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:03:44,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:03:45,407 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 297 proven. 50 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:03:45,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238777716] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:03:45,407 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:03:45,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 17, 17] total 40 [2023-05-04 17:03:45,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016609530] [2023-05-04 17:03:45,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:03:45,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-05-04 17:03:45,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:03:45,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-05-04 17:03:45,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=1307, Unknown=0, NotChecked=0, Total=1560 [2023-05-04 17:03:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:45,409 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:03:45,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 12.05) internal successors, (482), 40 states have internal predecessors, (482), 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) [2023-05-04 17:03:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:03:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:03:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:03:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:03:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2023-05-04 17:03:45,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:04:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:04:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 17:04:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2023-05-04 17:04:00,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 309 states. [2023-05-04 17:04:00,123 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-05-04 17:04:00,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:04:00,309 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:04:00,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:04:00,309 INFO L85 PathProgramCache]: Analyzing trace with hash -347154335, now seen corresponding path program 2 times [2023-05-04 17:04:00,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:04:00,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114186770] [2023-05-04 17:04:00,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:04:00,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:04:00,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:04:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 87 proven. 14 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-05-04 17:04:00,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:04:00,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114186770] [2023-05-04 17:04:00,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114186770] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:04:00,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601276768] [2023-05-04 17:04:00,436 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 17:04:00,436 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:04:00,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:04:00,441 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:04:00,442 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-05-04 17:04:00,587 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 17:04:00,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:04:00,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 5 conjunts are in the unsatisfiable core [2023-05-04 17:04:00,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:04:00,645 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 87 proven. 14 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-05-04 17:04:00,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:04:00,723 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 87 proven. 14 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2023-05-04 17:04:00,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601276768] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:04:00,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:04:00,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 13 [2023-05-04 17:04:00,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362620145] [2023-05-04 17:04:00,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:04:00,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-05-04 17:04:00,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:04:00,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-05-04 17:04:00,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-05-04 17:04:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:00,725 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:04:00,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 17.0) internal successors, (221), 13 states have internal predecessors, (221), 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) [2023-05-04 17:04:00,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:00,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:04:00,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:04:00,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 17:04:00,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 200 states. [2023-05-04 17:04:00,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 309 states. [2023-05-04 17:04:00,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:04:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:04:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 17:04:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2023-05-04 17:04:01,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 322 states. [2023-05-04 17:04:01,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:04:01,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-05-04 17:04:01,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:04:01,748 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:04:01,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:04:01,749 INFO L85 PathProgramCache]: Analyzing trace with hash -413493227, now seen corresponding path program 3 times [2023-05-04 17:04:01,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:04:01,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796579632] [2023-05-04 17:04:01,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:04:01,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:04:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:04:02,066 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 179 proven. 129 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2023-05-04 17:04:02,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:04:02,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796579632] [2023-05-04 17:04:02,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796579632] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:04:02,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490615276] [2023-05-04 17:04:02,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 17:04:02,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:04:02,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:04:02,068 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:04:02,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-05-04 17:04:02,180 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-05-04 17:04:02,180 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:04:02,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 17:04:02,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:04:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 12 proven. 5 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-05-04 17:04:02,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:04:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-05-04 17:04:02,258 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490615276] provided 1 perfect and 1 imperfect interpolant sequences [2023-05-04 17:04:02,258 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-05-04 17:04:02,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12, 4] total 15 [2023-05-04 17:04:02,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421956130] [2023-05-04 17:04:02,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:04:02,258 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 17:04:02,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:04:02,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 17:04:02,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-05-04 17:04:02,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:02,259 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:04:02,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 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) [2023-05-04 17:04:02,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:02,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:04:02,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2023-05-04 17:04:02,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 17:04:02,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2023-05-04 17:04:02,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 322 states. [2023-05-04 17:04:02,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:04:02,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:43,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:04:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:04:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:04:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:04:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 845 states. [2023-05-04 17:04:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:04:43,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:04:43,109 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-05-04 17:04:43,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:04:43,294 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:04:43,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:04:43,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1663027521, now seen corresponding path program 4 times [2023-05-04 17:04:43,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:04:43,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74626546] [2023-05-04 17:04:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:04:43,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:04:43,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:04:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 13 proven. 86 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:04:43,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:04:43,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74626546] [2023-05-04 17:04:43,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74626546] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:04:43,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451229996] [2023-05-04 17:04:43,586 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 17:04:43,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:04:43,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:04:43,587 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:04:43,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-05-04 17:04:43,843 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 17:04:43,843 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:04:43,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 20 conjunts are in the unsatisfiable core [2023-05-04 17:04:43,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:04:44,097 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 13 proven. 86 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:04:44,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:04:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 13 proven. 86 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:04:44,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451229996] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:04:44,421 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:04:44,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 29 [2023-05-04 17:04:44,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200120333] [2023-05-04 17:04:44,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:04:44,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-05-04 17:04:44,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:04:44,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-05-04 17:04:44,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=698, Unknown=0, NotChecked=0, Total=812 [2023-05-04 17:04:44,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:44,422 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:04:44,423 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.620689655172415) internal successors, (308), 29 states have internal predecessors, (308), 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) [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 845 states. [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:04:44,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:53,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:04:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:04:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:04:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:04:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 845 states. [2023-05-04 17:04:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:04:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:04:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-05-04 17:04:53,450 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-05-04 17:04:53,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:04:53,636 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:04:53,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:04:53,636 INFO L85 PathProgramCache]: Analyzing trace with hash 220845257, now seen corresponding path program 3 times [2023-05-04 17:04:53,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:04:53,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435086498] [2023-05-04 17:04:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:04:53,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:04:53,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:04:53,820 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 9 proven. 177 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:04:53,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:04:53,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435086498] [2023-05-04 17:04:53,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435086498] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:04:53,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [353471248] [2023-05-04 17:04:53,821 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 17:04:53,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:04:53,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:04:53,822 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:04:53,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-05-04 17:04:54,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2023-05-04 17:04:54,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:04:54,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 9 conjunts are in the unsatisfiable core [2023-05-04 17:04:54,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:04:54,134 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 9 proven. 177 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:04:54,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:04:54,293 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 9 proven. 177 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 17:04:54,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [353471248] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:04:54,294 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:04:54,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 17 [2023-05-04 17:04:54,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613183021] [2023-05-04 17:04:54,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:04:54,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-05-04 17:04:54,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:04:54,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-05-04 17:04:54,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2023-05-04 17:04:54,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:54,295 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:04:54,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 16.941176470588236) internal successors, (288), 17 states have internal predecessors, (288), 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) [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 845 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-05-04 17:04:54,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:05:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:05:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:05:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 845 states. [2023-05-04 17:05:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:05:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:05:02,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-05-04 17:05:02,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:05:02,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-05-04 17:05:02,492 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-05-04 17:05:02,492 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:02,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:02,493 INFO L85 PathProgramCache]: Analyzing trace with hash 775761253, now seen corresponding path program 4 times [2023-05-04 17:05:02,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:02,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288154381] [2023-05-04 17:05:02,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:02,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:02,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:02,846 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 0 proven. 619 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-05-04 17:05:02,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:02,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288154381] [2023-05-04 17:05:02,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288154381] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:05:02,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644074163] [2023-05-04 17:05:02,847 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 17:05:02,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:02,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:02,848 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:05:02,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-05-04 17:05:02,973 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 17:05:02,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:05:02,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 26 conjunts are in the unsatisfiable core [2023-05-04 17:05:02,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:05:03,398 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 0 proven. 619 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-05-04 17:05:03,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:05:03,960 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 0 proven. 619 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-05-04 17:05:03,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644074163] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:05:03,960 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:05:03,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2023-05-04 17:05:03,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564412414] [2023-05-04 17:05:03,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:05:03,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-05-04 17:05:03,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:03,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-05-04 17:05:03,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=803, Unknown=0, NotChecked=0, Total=930 [2023-05-04 17:05:03,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:03,962 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:03,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 14.612903225806452) internal successors, (453), 31 states have internal predecessors, (453), 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) [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 845 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:05:03,962 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 845 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:05:16,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-05-04 17:05:16,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:05:16,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-05-04 17:05:16,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2023-05-04 17:05:16,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-05-04 17:05:16,834 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:16,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:16,835 INFO L85 PathProgramCache]: Analyzing trace with hash -871286701, now seen corresponding path program 5 times [2023-05-04 17:05:16,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:16,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908627650] [2023-05-04 17:05:16,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:16,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 827 proven. 34 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-04 17:05:17,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:17,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1908627650] [2023-05-04 17:05:17,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1908627650] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:05:17,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072848673] [2023-05-04 17:05:17,116 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 17:05:17,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:17,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:17,117 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:05:17,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-05-04 17:05:17,406 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-05-04 17:05:17,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:05:17,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 13 conjunts are in the unsatisfiable core [2023-05-04 17:05:17,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:05:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 827 proven. 34 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-04 17:05:17,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:05:17,848 INFO L134 CoverageAnalysis]: Checked inductivity of 897 backedges. 827 proven. 34 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-05-04 17:05:17,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2072848673] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:05:17,849 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:05:17,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 14 [2023-05-04 17:05:17,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569453333] [2023-05-04 17:05:17,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:05:17,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-05-04 17:05:17,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:17,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-05-04 17:05:17,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2023-05-04 17:05:17,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:17,850 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:17,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.571428571428573) internal successors, (246), 14 states have internal predecessors, (246), 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) [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 845 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 110 states. [2023-05-04 17:05:17,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:39,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 423 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 905 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 110 states. [2023-05-04 17:05:39,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:05:39,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thrErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-05-04 17:05:39,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-05-04 17:05:39,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-05-04 17:05:39,291 INFO L444 BasicCegarLoop]: Path program histogram: [5, 4, 1, 1, 1] [2023-05-04 17:05:39,291 INFO L307 ceAbstractionStarter]: Result for error location thrThread1of2ForFork0 was SAFE (2/3) [2023-05-04 17:05:39,297 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:05:39,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:05:39,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:39,299 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 17:05:39,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (24)] Waiting until timeout for monitored process [2023-05-04 17:05:39,304 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:05:39,305 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 17:05:39,306 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;@88ebe81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:05:39,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 17:05:39,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 17:05:39,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:39,348 INFO L85 PathProgramCache]: Analyzing trace with hash 675003437, now seen corresponding path program 1 times [2023-05-04 17:05:39,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:39,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754769884] [2023-05-04 17:05:39,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:39,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:39,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:39,383 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 17:05:39,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:39,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754769884] [2023-05-04 17:05:39,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754769884] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:05:39,384 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:05:39,384 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-05-04 17:05:39,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684677500] [2023-05-04 17:05:39,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:05:39,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-05-04 17:05:39,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:39,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-05-04 17:05:39,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-05-04 17:05:39,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:39,385 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:39,385 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 17:05:39,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:39,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-05-04 17:05:39,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-05-04 17:05:39,393 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-04 17:05:39,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:39,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1549875656, now seen corresponding path program 1 times [2023-05-04 17:05:39,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:39,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991817109] [2023-05-04 17:05:39,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:39,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 17:05:39,403 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-05-04 17:05:39,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-05-04 17:05:39,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-05-04 17:05:39,423 INFO L359 BasicCegarLoop]: Counterexample is feasible [2023-05-04 17:05:39,424 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2023-05-04 17:05:39,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-05-04 17:05:39,425 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2023-05-04 17:05:39,425 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE (3/3) [2023-05-04 17:05:39,425 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2023-05-04 17:05:39,425 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2023-05-04 17:05:39,439 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-05-04 17:05:39,442 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:05:39,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 17:05:39,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:39,443 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-05-04 17:05:39,450 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 17:05:39,451 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thrThread1of3ForFork0 ======== [2023-05-04 17:05:39,452 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;@88ebe81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 17:05:39,452 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-05-04 17:05:39,467 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (25)] Waiting until timeout for monitored process [2023-05-04 17:05:39,564 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:39,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:39,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1956077881, now seen corresponding path program 1 times [2023-05-04 17:05:39,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:39,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589495742] [2023-05-04 17:05:39,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:39,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:39,593 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-05-04 17:05:39,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:39,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589495742] [2023-05-04 17:05:39,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589495742] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:05:39,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 17:05:39,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 17:05:39,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633843266] [2023-05-04 17:05:39,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:05:39,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 17:05:39,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:39,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 17:05:39,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 17:05:39,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:39,595 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:39,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 57.0) internal successors, (114), 2 states have internal predecessors, (114), 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) [2023-05-04 17:05:39,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:39,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:39,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-05-04 17:05:39,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:39,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1771551015, now seen corresponding path program 1 times [2023-05-04 17:05:39,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:39,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577708069] [2023-05-04 17:05:39,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:39,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:39,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:40,057 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 29 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:05:40,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:40,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577708069] [2023-05-04 17:05:40,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577708069] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:05:40,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577846495] [2023-05-04 17:05:40,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:40,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:40,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:40,060 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:05:40,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2023-05-04 17:05:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:40,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 5 conjunts are in the unsatisfiable core [2023-05-04 17:05:40,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:05:40,262 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-05-04 17:05:40,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 17:05:40,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577846495] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:05:40,262 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 17:05:40,262 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2023-05-04 17:05:40,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306027869] [2023-05-04 17:05:40,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:05:40,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 17:05:40,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:40,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 17:05:40,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2023-05-04 17:05:40,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:40,263 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:40,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 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) [2023-05-04 17:05:40,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:40,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:40,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:40,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2023-05-04 17:05:40,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:40,547 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:40,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:40,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1043042315, now seen corresponding path program 1 times [2023-05-04 17:05:40,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:40,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182308952] [2023-05-04 17:05:40,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:40,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:40,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:40,699 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 37 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-05-04 17:05:40,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:40,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182308952] [2023-05-04 17:05:40,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182308952] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:05:40,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989303939] [2023-05-04 17:05:40,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:40,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:40,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:40,701 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:05:40,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2023-05-04 17:05:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:40,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 17:05:40,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:05:41,106 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 11 proven. 41 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:05:41,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:05:41,381 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 11 proven. 41 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:05:41,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989303939] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:05:41,381 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:05:41,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 22 [2023-05-04 17:05:41,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534709928] [2023-05-04 17:05:41,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:05:41,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-05-04 17:05:41,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:41,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-05-04 17:05:41,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=391, Unknown=0, NotChecked=0, Total=462 [2023-05-04 17:05:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:41,383 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:41,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 16.818181818181817) internal successors, (370), 22 states have internal predecessors, (370), 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) [2023-05-04 17:05:41,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:41,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:41,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:41,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 17:05:42,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2023-05-04 17:05:42,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-05-04 17:05:42,189 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:42,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:42,189 INFO L85 PathProgramCache]: Analyzing trace with hash 827514703, now seen corresponding path program 1 times [2023-05-04 17:05:42,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:42,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065432941] [2023-05-04 17:05:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:42,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:42,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 64 proven. 6 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2023-05-04 17:05:42,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:42,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065432941] [2023-05-04 17:05:42,481 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065432941] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:05:42,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813345795] [2023-05-04 17:05:42,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:42,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:42,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:42,483 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:05:42,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2023-05-04 17:05:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:42,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 5 conjunts are in the unsatisfiable core [2023-05-04 17:05:42,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:05:42,722 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-05-04 17:05:42,722 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-05-04 17:05:42,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813345795] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 17:05:42,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-05-04 17:05:42,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 15 [2023-05-04 17:05:42,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595218424] [2023-05-04 17:05:42,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 17:05:42,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 17:05:42,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:42,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 17:05:42,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=178, Unknown=0, NotChecked=0, Total=210 [2023-05-04 17:05:42,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:42,723 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:42,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.166666666666668) internal successors, (121), 6 states have internal predecessors, (121), 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) [2023-05-04 17:05:42,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:42,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:42,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 17:05:42,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-05-04 17:05:42,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:05:42,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2023-05-04 17:05:43,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:43,041 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:43,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:43,041 INFO L85 PathProgramCache]: Analyzing trace with hash -183069632, now seen corresponding path program 1 times [2023-05-04 17:05:43,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:43,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234016516] [2023-05-04 17:05:43,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:43,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:43,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:43,391 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 285 proven. 115 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:05:43,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:43,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234016516] [2023-05-04 17:05:43,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234016516] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:05:43,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567838803] [2023-05-04 17:05:43,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:43,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:43,392 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:43,393 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:05:43,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2023-05-04 17:05:43,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:43,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-04 17:05:43,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:05:43,694 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 118 proven. 1 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-05-04 17:05:43,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:05:43,830 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 118 proven. 1 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-05-04 17:05:43,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567838803] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:05:43,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:05:43,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 7, 7] total 26 [2023-05-04 17:05:43,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217071389] [2023-05-04 17:05:43,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:05:43,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-05-04 17:05:43,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:43,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-05-04 17:05:43,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2023-05-04 17:05:43,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:43,833 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:43,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 14.461538461538462) internal successors, (376), 26 states have internal predecessors, (376), 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) [2023-05-04 17:05:43,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:43,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:43,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-05-04 17:05:43,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:05:43,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-05-04 17:05:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:05:44,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:05:44,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2023-05-04 17:05:44,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:44,669 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:44,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:44,669 INFO L85 PathProgramCache]: Analyzing trace with hash -2143446603, now seen corresponding path program 1 times [2023-05-04 17:05:44,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:44,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779138341] [2023-05-04 17:05:44,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:44,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:44,928 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 112 proven. 16 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2023-05-04 17:05:44,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:44,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779138341] [2023-05-04 17:05:44,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779138341] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:05:44,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463283696] [2023-05-04 17:05:44,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:44,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:44,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:44,930 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:05:44,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2023-05-04 17:05:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:45,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 22 conjunts are in the unsatisfiable core [2023-05-04 17:05:45,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:05:45,495 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 11 proven. 197 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:05:45,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:05:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 11 proven. 197 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 17:05:45,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463283696] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:05:45,952 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:05:45,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 31 [2023-05-04 17:05:45,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881655907] [2023-05-04 17:05:45,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:05:45,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-05-04 17:05:45,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:45,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-05-04 17:05:45,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=807, Unknown=0, NotChecked=0, Total=930 [2023-05-04 17:05:45,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:45,954 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:45,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 15.064516129032258) internal successors, (467), 31 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 17:05:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-05-04 17:05:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:05:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-04 17:05:45,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-05-04 17:05:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:05:47,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:05:47,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-05-04 17:05:47,233 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2023-05-04 17:05:47,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:47,412 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thrErr0ASSERT_VIOLATIONERROR_FUNCTION === [thrErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-05-04 17:05:47,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 17:05:47,413 INFO L85 PathProgramCache]: Analyzing trace with hash -686509678, now seen corresponding path program 2 times [2023-05-04 17:05:47,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 17:05:47,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401348190] [2023-05-04 17:05:47,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 17:05:47,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 17:05:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 17:05:47,690 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 416 proven. 91 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:05:47,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 17:05:47,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401348190] [2023-05-04 17:05:47,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401348190] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 17:05:47,691 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1960773700] [2023-05-04 17:05:47,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 17:05:47,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 17:05:47,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 17:05:47,693 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 17:05:47,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2023-05-04 17:05:47,886 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 17:05:47,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 17:05:47,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 13 conjunts are in the unsatisfiable core [2023-05-04 17:05:47,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 17:05:48,063 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 506 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:05:48,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 17:05:48,293 INFO L134 CoverageAnalysis]: Checked inductivity of 522 backedges. 506 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 17:05:48,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1960773700] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 17:05:48,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 17:05:48,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 18 [2023-05-04 17:05:48,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739602456] [2023-05-04 17:05:48,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 17:05:48,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-05-04 17:05:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 17:05:48,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-05-04 17:05:48,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2023-05-04 17:05:48,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:48,295 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 17:05:48,296 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 17.055555555555557) internal successors, (307), 18 states have internal predecessors, (307), 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) [2023-05-04 17:05:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 17:05:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-04 17:05:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2023-05-04 17:05:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 17:05:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-04 17:05:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2023-05-04 17:05:48,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.