/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 '"3,2 1,1 2,2"' --traceabstraction.defines.what.statements.are.considered.a.step.in.por LOOP -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 12:04:00,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 12:04:00,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 12:04:00,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 12:04:00,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 12:04:00,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 12:04:00,161 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 12:04:00,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 12:04:00,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 12:04:00,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 12:04:00,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 12:04:00,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 12:04:00,173 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 12:04:00,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 12:04:00,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 12:04:00,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 12:04:00,177 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 12:04:00,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 12:04:00,179 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 12:04:00,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 12:04:00,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 12:04:00,184 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 12:04:00,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 12:04:00,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 12:04:00,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 12:04:00,191 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 12:04:00,191 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 12:04:00,192 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 12:04:00,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 12:04:00,193 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 12:04:00,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 12:04:00,194 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 12:04:00,195 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 12:04:00,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 12:04:00,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 12:04:00,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 12:04:00,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 12:04:00,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 12:04:00,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 12:04:00,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 12:04:00,197 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 12:04:00,198 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 12:04:00,222 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 12:04:00,222 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 12:04:00,222 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 12:04:00,222 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 12:04:00,223 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 12:04:00,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 12:04:00,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 12:04:00,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 12:04:00,224 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 12:04:00,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 12:04:00,224 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 12:04:00,225 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 12:04:00,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 12:04:00,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 12:04:00,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 12:04:00,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 12:04:00,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 12:04:00,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 12:04:00,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 12:04:00,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 12:04:00,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 12:04:00,227 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 12:04:00,227 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 12:04:00,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 12:04:00,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 12:04:00,227 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 12:04:00,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 12:04:00,227 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 12:04:00,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> LOOP [2023-05-04 12:04:00,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 12:04:00,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 12:04:00,450 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 12:04:00,451 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 12:04:00,453 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 12:04:00,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c [2023-05-04 12:04:00,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f664aa1/2c7e7fb8c05f4d7ab533f403a8edd5c8/FLAGaf6496c89 [2023-05-04 12:04:00,854 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 12:04:00,854 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c [2023-05-04 12:04:00,862 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f664aa1/2c7e7fb8c05f4d7ab533f403a8edd5c8/FLAGaf6496c89 [2023-05-04 12:04:00,870 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1f664aa1/2c7e7fb8c05f4d7ab533f403a8edd5c8 [2023-05-04 12:04:00,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 12:04:00,873 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 12:04:00,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 12:04:00,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 12:04:00,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 12:04:00,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 12:04:00" (1/1) ... [2023-05-04 12:04:00,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b33bc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:00, skipping insertion in model container [2023-05-04 12:04:00,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 12:04:00" (1/1) ... [2023-05-04 12:04:00,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 12:04:00,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 12:04:01,023 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c[2135,2148] [2023-05-04 12:04:01,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 12:04:01,030 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 12:04:01,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-flipped-dist.wvr.c[2135,2148] [2023-05-04 12:04:01,058 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 12:04:01,068 INFO L208 MainTranslator]: Completed translation [2023-05-04 12:04:01,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01 WrapperNode [2023-05-04 12:04:01,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 12:04:01,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 12:04:01,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 12:04:01,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 12:04:01,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,094 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2023-05-04 12:04:01,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 12:04:01,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 12:04:01,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 12:04:01,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 12:04:01,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,111 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 12:04:01,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 12:04:01,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 12:04:01,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 12:04:01,114 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (1/1) ... [2023-05-04 12:04:01,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 12:04:01,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:01,141 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 12:04:01,143 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 12:04:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 12:04:01,187 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 12:04:01,187 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 12:04:01,188 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 12:04:01,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 12:04:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-04 12:04:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-04 12:04:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 12:04:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 12:04:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 12:04:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 12:04:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 12:04:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 12:04:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 12:04:01,193 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 12:04:01,253 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 12:04:01,254 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 12:04:01,415 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 12:04:01,421 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 12:04:01,421 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 12:04:01,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:04:01 BoogieIcfgContainer [2023-05-04 12:04:01,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 12:04:01,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 12:04:01,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 12:04:01,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 12:04:01,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 12:04:00" (1/3) ... [2023-05-04 12:04:01,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257054e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 12:04:01, skipping insertion in model container [2023-05-04 12:04:01,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 12:04:01" (2/3) ... [2023-05-04 12:04:01,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@257054e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 12:04:01, skipping insertion in model container [2023-05-04 12:04:01,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:04:01" (3/3) ... [2023-05-04 12:04:01,428 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-flipped-dist.wvr.c [2023-05-04 12:04:01,434 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 12:04:01,440 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 12:04:01,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 12:04:01,441 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 12:04:01,521 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-04 12:04:01,556 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 12:04:01,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 12:04:01,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:01,557 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 12:04:01,558 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 12:04:01,580 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 12:04:01,592 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 12:04:01,598 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;@2232dfec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 12:04:01,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-04 12:04:01,801 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:01,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:01,805 INFO L85 PathProgramCache]: Analyzing trace with hash 461642013, now seen corresponding path program 1 times [2023-05-04 12:04:01,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:01,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186168200] [2023-05-04 12:04:01,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:01,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:01,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:02,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:02,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:02,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186168200] [2023-05-04 12:04:02,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186168200] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 12:04:02,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 12:04:02,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 12:04:02,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850012139] [2023-05-04 12:04:02,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 12:04:02,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 12:04:02,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:02,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 12:04:02,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 12:04:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,054 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:02,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 12:04:02,062 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 12:04:02,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:02,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:02,120 INFO L85 PathProgramCache]: Analyzing trace with hash 785796946, now seen corresponding path program 1 times [2023-05-04 12:04:02,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:02,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635619933] [2023-05-04 12:04:02,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:02,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:02,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:02,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635619933] [2023-05-04 12:04:02,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635619933] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 12:04:02,451 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 12:04:02,451 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-05-04 12:04:02,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750866477] [2023-05-04 12:04:02,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 12:04:02,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-04 12:04:02,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:02,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-04 12:04:02,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-05-04 12:04:02,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,453 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:02,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 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 12:04:02,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,454 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:02,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-05-04 12:04:02,530 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:02,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1283917669, now seen corresponding path program 1 times [2023-05-04 12:04:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:02,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838820232] [2023-05-04 12:04:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:02,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:02,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:02,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838820232] [2023-05-04 12:04:02,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838820232] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 12:04:02,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 12:04:02,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-05-04 12:04:02,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680014167] [2023-05-04 12:04:02,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 12:04:02,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-05-04 12:04:02,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:02,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-05-04 12:04:02,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-05-04 12:04:02,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,903 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:02,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 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 12:04:02,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:02,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:02,907 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:03,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-05-04 12:04:03,105 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:03,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:03,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1213127733, now seen corresponding path program 1 times [2023-05-04 12:04:03,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:03,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772484789] [2023-05-04 12:04:03,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:03,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:03,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:03,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:03,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772484789] [2023-05-04 12:04:03,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772484789] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 12:04:03,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 12:04:03,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 12:04:03,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276846309] [2023-05-04 12:04:03,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 12:04:03,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 12:04:03,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:03,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 12:04:03,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-05-04 12:04:03,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,307 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:03,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 12:04:03,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:03,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:03,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 12:04:03,422 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:03,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:03,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1124213941, now seen corresponding path program 1 times [2023-05-04 12:04:03,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:03,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268847095] [2023-05-04 12:04:03,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:03,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:03,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:03,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:03,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268847095] [2023-05-04 12:04:03,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268847095] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 12:04:03,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 12:04:03,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-05-04 12:04:03,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59745591] [2023-05-04 12:04:03,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 12:04:03,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-05-04 12:04:03,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:03,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-05-04 12:04:03,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-05-04 12:04:03,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,600 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:03,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 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 12:04:03,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:03,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:03,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:03,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:03,666 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-05-04 12:04:03,666 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:03,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:03,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1159188492, now seen corresponding path program 1 times [2023-05-04 12:04:03,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:03,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611649491] [2023-05-04 12:04:03,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:03,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:03,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:03,869 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:03,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:03,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611649491] [2023-05-04 12:04:03,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611649491] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:03,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240545117] [2023-05-04 12:04:03,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:03,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:03,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:03,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 12:04:03,900 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-04 12:04:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:03,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 12:04:03,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:04,161 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:04,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240545117] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:04,318 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:04,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2023-05-04 12:04:04,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048456246] [2023-05-04 12:04:04,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:04,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-05-04 12:04:04,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:04,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-05-04 12:04:04,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=221, Unknown=0, NotChecked=0, Total=272 [2023-05-04 12:04:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:04,320 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:04,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.0) internal successors, (136), 17 states have internal predecessors, (136), 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 12:04:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:04,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:04,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:04,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-04 12:04:04,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-05-04 12:04:04,807 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:04,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:04,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1649571388, now seen corresponding path program 2 times [2023-05-04 12:04:04,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:04,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240561420] [2023-05-04 12:04:04,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:04,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:05,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:05,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:05,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240561420] [2023-05-04 12:04:05,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240561420] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:05,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812035362] [2023-05-04 12:04:05,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 12:04:05,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:05,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:05,089 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 12:04:05,105 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 12:04:05,214 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 12:04:05,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:04:05,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 17 conjunts are in the unsatisfiable core [2023-05-04 12:04:05,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:05,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:05,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:05,712 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:05,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812035362] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:05,713 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:05,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 15 [2023-05-04 12:04:05,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782020584] [2023-05-04 12:04:05,713 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:05,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-05-04 12:04:05,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:05,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-05-04 12:04:05,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-05-04 12:04:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:05,714 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:05,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.733333333333333) internal successors, (161), 15 states have internal predecessors, (161), 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 12:04:05,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:05,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:05,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:05,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:05,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:05,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:05,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:05,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:05,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-05-04 12:04:05,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-04 12:04:06,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:06,037 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:06,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:06,037 INFO L85 PathProgramCache]: Analyzing trace with hash 601984731, now seen corresponding path program 3 times [2023-05-04 12:04:06,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:06,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517712874] [2023-05-04 12:04:06,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:06,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:06,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:06,293 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:06,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:06,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517712874] [2023-05-04 12:04:06,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517712874] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:06,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [420319354] [2023-05-04 12:04:06,294 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 12:04:06,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:06,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:06,297 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 12:04:06,324 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 12:04:06,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-05-04 12:04:06,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:04:06,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 12:04:06,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:06,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:06,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [420319354] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:06,621 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:06,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-05-04 12:04:06,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794658698] [2023-05-04 12:04:06,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:06,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-05-04 12:04:06,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:06,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-05-04 12:04:06,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2023-05-04 12:04:06,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:06,624 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:06,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 8.210526315789474) internal successors, (156), 19 states have internal predecessors, (156), 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 12:04:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2023-05-04 12:04:06,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-05-04 12:04:07,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:07,187 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 12:04:07,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:07,371 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:07,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:07,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1778439406, now seen corresponding path program 4 times [2023-05-04 12:04:07,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:07,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473555559] [2023-05-04 12:04:07,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:07,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:07,664 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:07,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:07,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473555559] [2023-05-04 12:04:07,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473555559] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:07,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949148253] [2023-05-04 12:04:07,665 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 12:04:07,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:07,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:07,666 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 12:04:07,669 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 12:04:07,735 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 12:04:07,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:04:07,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 22 conjunts are in the unsatisfiable core [2023-05-04 12:04:07,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:07,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 11 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:08,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949148253] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:08,283 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:08,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 28 [2023-05-04 12:04:08,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451607937] [2023-05-04 12:04:08,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:08,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-05-04 12:04:08,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:08,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-05-04 12:04:08,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2023-05-04 12:04:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:08,284 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:08,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.107142857142857) internal successors, (171), 28 states have internal predecessors, (171), 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 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2023-05-04 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:08,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:09,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:09,236 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 12:04:09,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:09,422 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:09,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:09,422 INFO L85 PathProgramCache]: Analyzing trace with hash -667031538, now seen corresponding path program 5 times [2023-05-04 12:04:09,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:09,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642431357] [2023-05-04 12:04:09,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:09,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:09,744 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:09,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:09,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642431357] [2023-05-04 12:04:09,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642431357] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:09,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327427876] [2023-05-04 12:04:09,745 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 12:04:09,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:09,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:09,746 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 12:04:09,747 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 12:04:09,822 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2023-05-04 12:04:09,822 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:04:09,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 14 conjunts are in the unsatisfiable core [2023-05-04 12:04:09,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:09,972 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:09,972 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:10,138 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:10,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327427876] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:10,138 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:10,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 23 [2023-05-04 12:04:10,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10032104] [2023-05-04 12:04:10,138 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:10,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-05-04 12:04:10,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:10,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-05-04 12:04:10,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=412, Unknown=0, NotChecked=0, Total=506 [2023-05-04 12:04:10,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:10,140 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:10,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.782608695652174) internal successors, (179), 23 states have internal predecessors, (179), 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 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:10,140 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:10,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-05-04 12:04:10,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-04 12:04:10,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:10,921 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:10,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:10,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1077397787, now seen corresponding path program 6 times [2023-05-04 12:04:10,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:10,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770339363] [2023-05-04 12:04:10,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:10,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:11,222 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 12:04:11,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770339363] [2023-05-04 12:04:11,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770339363] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:11,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076509739] [2023-05-04 12:04:11,223 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-04 12:04:11,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:11,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:11,224 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 12:04:11,246 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 12:04:11,300 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-05-04 12:04:11,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:04:11,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 22 conjunts are in the unsatisfiable core [2023-05-04 12:04:11,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:11,613 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 12:04:11,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:11,974 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 12:04:11,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076509739] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:11,975 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:11,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 36 [2023-05-04 12:04:11,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829243966] [2023-05-04 12:04:11,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:11,975 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-05-04 12:04:11,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:11,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-05-04 12:04:11,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1161, Unknown=0, NotChecked=0, Total=1260 [2023-05-04 12:04:11,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:11,976 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:11,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 6.638888888888889) internal successors, (239), 36 states have internal predecessors, (239), 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 12:04:11,976 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2023-05-04 12:04:11,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:04:16,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 12:04:16,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-05-04 12:04:16,599 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 12:04:16,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:16,784 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:16,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:16,785 INFO L85 PathProgramCache]: Analyzing trace with hash 1086184127, now seen corresponding path program 7 times [2023-05-04 12:04:16,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:16,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441955941] [2023-05-04 12:04:16,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:16,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:17,409 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 21 proven. 48 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:17,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:17,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441955941] [2023-05-04 12:04:17,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441955941] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:17,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996847320] [2023-05-04 12:04:17,409 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-04 12:04:17,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:17,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:17,410 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 12:04:17,438 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 12:04:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:17,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 30 conjunts are in the unsatisfiable core [2023-05-04 12:04:17,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:17,867 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 28 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:17,867 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 28 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-05-04 12:04:18,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996847320] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:18,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:18,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 42 [2023-05-04 12:04:18,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468478421] [2023-05-04 12:04:18,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:18,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2023-05-04 12:04:18,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2023-05-04 12:04:18,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1569, Unknown=0, NotChecked=0, Total=1722 [2023-05-04 12:04:18,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:18,504 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:18,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.880952380952381) internal successors, (205), 42 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-05-04 12:04:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:18,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:18,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:18,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:18,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:04:18,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 12:04:18,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2023-05-04 12:04:18,505 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:24,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-05-04 12:04:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-05-04 12:04:24,786 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 12:04:24,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-05-04 12:04:24,973 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:24,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:24,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1214881720, now seen corresponding path program 8 times [2023-05-04 12:04:24,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:24,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81174372] [2023-05-04 12:04:24,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:24,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:25,401 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:25,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:25,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81174372] [2023-05-04 12:04:25,402 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81174372] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:25,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72776490] [2023-05-04 12:04:25,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 12:04:25,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:25,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:25,405 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 12:04:25,452 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 12:04:25,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 12:04:25,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:04:25,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 29 conjunts are in the unsatisfiable core [2023-05-04 12:04:25,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:26,276 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:04:26,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:28,525 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-05-04 12:04:28,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72776490] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:28,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:28,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 12] total 32 [2023-05-04 12:04:28,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357610506] [2023-05-04 12:04:28,526 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:28,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-05-04 12:04:28,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:28,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-05-04 12:04:28,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=888, Unknown=0, NotChecked=0, Total=992 [2023-05-04 12:04:28,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:28,527 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:28,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.375) internal successors, (268), 32 states have internal predecessors, (268), 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 12:04:28,527 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-05-04 12:04:28,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:28,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:04:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 12:04:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-05-04 12:04:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-05-04 12:04:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-05-04 12:04:28,934 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 12:04:29,115 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,SelfDestructingSolverStorable12 [2023-05-04 12:04:29,116 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:29,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:29,116 INFO L85 PathProgramCache]: Analyzing trace with hash 49941583, now seen corresponding path program 9 times [2023-05-04 12:04:29,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:29,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893033577] [2023-05-04 12:04:29,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:29,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 52 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-04 12:04:29,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:29,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893033577] [2023-05-04 12:04:29,852 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893033577] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:29,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494863142] [2023-05-04 12:04:29,852 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 12:04:29,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:29,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:29,854 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 12:04:29,868 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 12:04:29,982 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-05-04 12:04:29,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:04:29,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 30 conjunts are in the unsatisfiable core [2023-05-04 12:04:29,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 49 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 12:04:30,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:31,128 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 16 proven. 49 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 12:04:31,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494863142] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:31,128 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:31,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 17] total 49 [2023-05-04 12:04:31,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617548102] [2023-05-04 12:04:31,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:31,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-05-04 12:04:31,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-05-04 12:04:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=2173, Unknown=0, NotChecked=0, Total=2352 [2023-05-04 12:04:31,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:31,130 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:31,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.816326530612245) internal successors, (236), 49 states have internal predecessors, (236), 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 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:04:31,130 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 12:04:31,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2023-05-04 12:04:31,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-05-04 12:04:31,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2023-05-04 12:04:31,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:48,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:48,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:48,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-05-04 12:04:48,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-05-04 12:04:48,641 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 12:04:48,825 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 12:04:48,826 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:04:48,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:04:48,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1065314390, now seen corresponding path program 10 times [2023-05-04 12:04:48,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:04:48,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100159738] [2023-05-04 12:04:48,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:04:48,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:04:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:04:49,221 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 91 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-05-04 12:04:49,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:04:49,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100159738] [2023-05-04 12:04:49,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100159738] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:04:49,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475392383] [2023-05-04 12:04:49,221 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 12:04:49,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:04:49,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:04:49,223 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-04 12:04:49,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-05-04 12:04:49,433 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 12:04:49,434 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:04:49,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 38 conjunts are in the unsatisfiable core [2023-05-04 12:04:49,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:04:49,907 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 12:04:49,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:04:50,511 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 21 proven. 96 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 12:04:50,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475392383] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:04:50,511 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:04:50,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 21] total 46 [2023-05-04 12:04:50,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039429796] [2023-05-04 12:04:50,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:04:50,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2023-05-04 12:04:50,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:04:50,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2023-05-04 12:04:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=1882, Unknown=0, NotChecked=0, Total=2070 [2023-05-04 12:04:50,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:50,513 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:04:50,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 5.130434782608695) internal successors, (236), 46 states have internal predecessors, (236), 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 12:04:50,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:04:50,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:50,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:04:50,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:50,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:04:50,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2023-05-04 12:04:50,514 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:05:16,367 WARN L233 SmtUtils]: Spent 17.95s on a formula simplification. DAG size of input: 78 DAG size of output: 64 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2023-05-04 12:05:21,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 12:05:21,589 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-05-04 12:05:21,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-05-04 12:05:21,777 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:05:21,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:05:21,777 INFO L85 PathProgramCache]: Analyzing trace with hash -2133713546, now seen corresponding path program 11 times [2023-05-04 12:05:21,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:05:21,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772088718] [2023-05-04 12:05:21,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:05:21,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:05:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:05:22,530 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 12:05:22,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:05:22,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772088718] [2023-05-04 12:05:22,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772088718] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:05:22,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025710248] [2023-05-04 12:05:22,530 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 12:05:22,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:05:22,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:05:22,532 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 12:05:22,533 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 12:05:22,677 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-05-04 12:05:22,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:05:22,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 30 conjunts are in the unsatisfiable core [2023-05-04 12:05:22,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:05:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 12:05:23,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:05:23,794 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 12:05:23,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025710248] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:05:23,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:05:23,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 17, 17] total 53 [2023-05-04 12:05:23,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329141872] [2023-05-04 12:05:23,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:05:23,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-05-04 12:05:23,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:05:23,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-05-04 12:05:23,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=196, Invalid=2560, Unknown=0, NotChecked=0, Total=2756 [2023-05-04 12:05:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:05:23,797 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:05:23,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 5.0) internal successors, (265), 53 states have internal predecessors, (265), 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 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 76 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:05:23,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2023-05-04 12:05:23,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-05-04 12:05:23,798 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:05:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:05:33,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2023-05-04 12:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-05-04 12:05:33,179 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 12:05:33,379 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 12:05:33,379 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:05:33,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:05:33,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1916412994, now seen corresponding path program 12 times [2023-05-04 12:05:33,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:05:33,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355200217] [2023-05-04 12:05:33,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:05:33,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:05:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:05:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 43 proven. 73 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 12:05:33,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:05:33,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355200217] [2023-05-04 12:05:33,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355200217] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:05:33,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165166135] [2023-05-04 12:05:33,943 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-04 12:05:33,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:05:33,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:05:33,949 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 12:05:33,972 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 12:05:34,103 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2023-05-04 12:05:34,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:05:34,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 38 conjunts are in the unsatisfiable core [2023-05-04 12:05:34,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:05:34,703 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 12:05:34,703 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:05:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 117 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-04 12:05:35,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165166135] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:05:35,663 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:05:35,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 60 [2023-05-04 12:05:35,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055977024] [2023-05-04 12:05:35,664 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:05:35,664 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2023-05-04 12:05:35,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:05:35,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2023-05-04 12:05:35,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=3356, Unknown=0, NotChecked=0, Total=3540 [2023-05-04 12:05:35,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:05:35,665 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:05:35,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 5.05) internal successors, (303), 60 states have internal predecessors, (303), 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 12:05:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:05:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:05:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:35,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 115 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-05-04 12:05:35,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:04,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:06:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:06:10,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2023-05-04 12:06:10,408 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 12:06:10,601 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 12:06:10,601 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:06:10,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:06:10,601 INFO L85 PathProgramCache]: Analyzing trace with hash 373842172, now seen corresponding path program 13 times [2023-05-04 12:06:10,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:06:10,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626339900] [2023-05-04 12:06:10,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:06:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:06:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:06:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 160 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-04 12:06:11,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:06:11,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626339900] [2023-05-04 12:06:11,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626339900] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:06:11,105 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466911270] [2023-05-04 12:06:11,105 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-05-04 12:06:11,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:06:11,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:06:11,106 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 12:06:11,107 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 12:06:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:06:11,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 41 conjunts are in the unsatisfiable core [2023-05-04 12:06:11,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:06:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 12:06:12,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:06:17,226 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 150 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 12:06:17,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466911270] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:06:17,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:06:17,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 15] total 43 [2023-05-04 12:06:17,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314625715] [2023-05-04 12:06:17,227 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:06:17,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2023-05-04 12:06:17,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:06:17,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2023-05-04 12:06:17,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1670, Unknown=0, NotChecked=0, Total=1806 [2023-05-04 12:06:17,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:17,228 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:06:17,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 7.72093023255814) internal successors, (332), 43 states have internal predecessors, (332), 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 12:06:17,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:17,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:17,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:06:17,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:17,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:17,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:06:17,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:06:17,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2023-05-04 12:06:17,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:06:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:17,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2023-05-04 12:06:17,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:06:17,964 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 12:06:18,148 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 12:06:18,149 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:06:18,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:06:18,149 INFO L85 PathProgramCache]: Analyzing trace with hash 917527579, now seen corresponding path program 14 times [2023-05-04 12:06:18,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:06:18,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471310230] [2023-05-04 12:06:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:06:18,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:06:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:06:18,728 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 26 proven. 150 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-04 12:06:18,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:06:18,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471310230] [2023-05-04 12:06:18,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471310230] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:06:18,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [444679102] [2023-05-04 12:06:18,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 12:06:18,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:06:18,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:06:18,730 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 12:06:18,731 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 12:06:18,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 12:06:18,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:06:18,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 48 conjunts are in the unsatisfiable core [2023-05-04 12:06:18,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:06:19,431 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 26 proven. 155 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-05-04 12:06:19,432 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:06:20,387 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 26 proven. 155 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-05-04 12:06:20,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [444679102] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:06:20,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:06:20,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 25, 25] total 61 [2023-05-04 12:06:20,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161807186] [2023-05-04 12:06:20,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:06:20,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-05-04 12:06:20,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:06:20,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-05-04 12:06:20,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=281, Invalid=3379, Unknown=0, NotChecked=0, Total=3660 [2023-05-04 12:06:20,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:20,390 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:06:20,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 4.770491803278689) internal successors, (291), 61 states have internal predecessors, (291), 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 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:06:20,390 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:06:20,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2023-05-04 12:06:20,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 12:06:20,391 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:23,856 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (* (div c_~c~0 4294967296) 4294967296)) (.cse8 (* (div (+ (- 1) c_thread2Thread1of1ForFork2_~i~1) 4294967296) 4294967296))) (let ((.cse1 (mod (+ c_thread2Thread1of1ForFork2_~i~1 2) 4294967296)) (.cse0 (* (div (+ (- 4294967292) c_thread1Thread1of1ForFork1_~i~0) 4294967296) 4294967296)) (.cse6 (+ 4294967292 .cse8)) (.cse3 (+ c_~c~0 c_thread1Thread1of1ForFork1_~i~0)) (.cse7 (mod (+ c_thread2Thread1of1ForFork2_~i~1 4) 4294967296)) (.cse4 (+ c_thread2Thread1of1ForFork2_~i~1 .cse2 4294967293)) (.cse5 (- c_~c~0))) (and (< (+ 4294967291 .cse0 .cse1) c_thread1Thread1of1ForFork1_~i~0) (<= (+ c_~c~0 (* (div c_thread1Thread1of1ForFork1_~i~0 4294967296) 4294967296)) (+ c_thread1Thread1of1ForFork1_~i~0 .cse2)) (<= .cse3 .cse4) (<= |c_thread1Thread1of1ForFork1_#t~post1| (+ (* (div (+ 2 .cse5 |c_thread1Thread1of1ForFork1_#t~post1|) 4294967296) 4294967296) .cse2 4294967293)) (<= |c_thread1Thread1of1ForFork1_#t~post1| (+ .cse2 4294967294 (* (div (+ .cse5 |c_thread1Thread1of1ForFork1_#t~post1| 1) 4294967296) 4294967296))) (< (+ (* 4294967296 (div (+ (- 4294967292) |c_thread1Thread1of1ForFork1_#t~post1|) 4294967296)) 4294967291 .cse1) |c_thread1Thread1of1ForFork1_#t~post1|) (<= |c_thread1Thread1of1ForFork1_#t~post1| .cse6) (< (+ 4294967291 (mod (+ c_thread2Thread1of1ForFork2_~i~1 3) 4294967296) .cse0) c_thread1Thread1of1ForFork1_~i~0) (<= c_thread2Thread1of1ForFork2_~i~1 c_thread1Thread1of1ForFork1_~i~0) (<= c_thread2Thread1of1ForFork2_~i~1 (+ c_thread1Thread1of1ForFork1_~i~0 3)) (<= c_thread2Thread1of1ForFork2_~i~1 (+ c_thread1Thread1of1ForFork1_~i~0 2)) (< (+ 4294967292 (* (div (+ c_thread1Thread1of1ForFork1_~i~0 (- 4294967293)) 4294967296) 4294967296) .cse1) c_thread1Thread1of1ForFork1_~i~0) (<= c_thread2Thread1of1ForFork2_~i~1 (+ 2 |c_thread1Thread1of1ForFork1_#t~post1|)) (< (+ 4294967291 .cse0 .cse7) c_thread1Thread1of1ForFork1_~i~0) (<= .cse3 (+ c_thread2Thread1of1ForFork2_~i~1 4294967295 .cse2)) (<= c_thread1Thread1of1ForFork1_~i~0 (+ .cse8 4294967293)) (<= c_thread2Thread1of1ForFork2_~i~1 (+ c_thread1Thread1of1ForFork1_~i~0 1)) (<= c_thread2Thread1of1ForFork2_~i~1 (+ 3 |c_thread1Thread1of1ForFork1_#t~post1|)) (<= c_thread1Thread1of1ForFork1_~i~0 (+ (* 4294967296 (div c_thread2Thread1of1ForFork2_~i~1 4294967296)) 4294967292)) (<= c_thread1Thread1of1ForFork1_~i~0 .cse6) (<= .cse3 (+ c_thread2Thread1of1ForFork2_~i~1 .cse2 4294967294)) (<= c_thread1Thread1of1ForFork1_~i~0 (+ .cse2 4294967294 (* (div (+ c_thread1Thread1of1ForFork1_~i~0 .cse5 1) 4294967296) 4294967296))) (< (+ 4294967290 .cse7 (* 4294967296 (div (+ (- 4294967291) |c_thread1Thread1of1ForFork1_#t~post1|) 4294967296))) |c_thread1Thread1of1ForFork1_#t~post1|) (<= (+ c_~c~0 |c_thread1Thread1of1ForFork1_#t~post1|) .cse4) (<= c_thread1Thread1of1ForFork1_~i~0 (+ .cse2 (* (div (+ c_thread1Thread1of1ForFork1_~i~0 2 .cse5) 4294967296) 4294967296) 4294967293))))) is different from false [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:06:41,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-05-04 12:06:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:06:41,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-05-04 12:06:41,462 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 12:06:41,646 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 12:06:41,646 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:06:41,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:06:41,647 INFO L85 PathProgramCache]: Analyzing trace with hash -678160082, now seen corresponding path program 15 times [2023-05-04 12:06:41,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:06:41,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83063366] [2023-05-04 12:06:41,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:06:41,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:06:41,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:06:42,311 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 31 proven. 226 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-05-04 12:06:42,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:06:42,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83063366] [2023-05-04 12:06:42,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83063366] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:06:42,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448442401] [2023-05-04 12:06:42,312 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 12:06:42,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:06:42,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:06:42,313 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 12:06:42,314 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 12:06:42,750 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-05-04 12:06:42,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:06:42,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 54 conjunts are in the unsatisfiable core [2023-05-04 12:06:42,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:06:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 31 proven. 232 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-05-04 12:06:43,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:06:45,005 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 31 proven. 232 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-05-04 12:06:45,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448442401] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:06:45,006 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:06:45,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 29, 29] total 72 [2023-05-04 12:06:45,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802953272] [2023-05-04 12:06:45,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:06:45,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-05-04 12:06:45,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:06:45,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-05-04 12:06:45,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=4827, Unknown=0, NotChecked=0, Total=5112 [2023-05-04 12:06:45,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:45,008 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:06:45,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 4.694444444444445) internal successors, (338), 72 states have internal predecessors, (338), 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 12:06:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:06:45,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2023-05-04 12:06:45,009 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:09:38,190 WARN L233 SmtUtils]: Spent 1.72m on a formula simplification. DAG size of input: 145 DAG size of output: 106 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 12:09:40,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:09:41,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:09:43,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:09:46,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:09:48,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:10:17,232 WARN L233 SmtUtils]: Spent 9.14s on a formula simplification. DAG size of input: 105 DAG size of output: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 12:11:24,937 WARN L233 SmtUtils]: Spent 29.96s on a formula simplification. DAG size of input: 108 DAG size of output: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 12:12:38,701 WARN L233 SmtUtils]: Spent 22.80s on a formula simplification. DAG size of input: 102 DAG size of output: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 12:12:41,006 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:12:43,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:13:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:13:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:09,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2023-05-04 12:13:09,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 176 states. [2023-05-04 12:13:09,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-05-04 12:13:09,518 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 12:13:09,519 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:13:09,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:13:09,519 INFO L85 PathProgramCache]: Analyzing trace with hash 202210382, now seen corresponding path program 16 times [2023-05-04 12:13:09,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:13:09,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771800157] [2023-05-04 12:13:09,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:13:09,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:13:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:13:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-05-04 12:13:10,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:13:10,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771800157] [2023-05-04 12:13:10,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771800157] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:13:10,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79545838] [2023-05-04 12:13:10,251 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-04 12:13:10,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:13:10,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:13:10,252 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 12:13:10,253 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 12:13:10,344 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-04 12:13:10,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:13:10,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 46 conjunts are in the unsatisfiable core [2023-05-04 12:13:10,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 12:13:11,125 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-05-04 12:13:11,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 12:13:12,467 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-05-04 12:13:12,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79545838] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 12:13:12,467 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 12:13:12,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 25, 25] total 72 [2023-05-04 12:13:12,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061387512] [2023-05-04 12:13:12,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 12:13:12,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2023-05-04 12:13:12,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 12:13:12,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2023-05-04 12:13:12,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=4851, Unknown=0, NotChecked=0, Total=5112 [2023-05-04 12:13:12,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:13:12,469 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 12:13:12,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 72 states have (on average 4.708333333333333) internal successors, (339), 72 states have internal predecessors, (339), 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 12:13:12,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 90 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 176 states. [2023-05-04 12:13:12,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:13:26,813 WARN L233 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 62 DAG size of output: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 12:13:35,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2023-05-04 12:13:54,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2023-05-04 12:13:54,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2023-05-04 12:13:54,745 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 12:13:54,929 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 12:13:54,930 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-04 12:13:54,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 12:13:54,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1797387976, now seen corresponding path program 17 times [2023-05-04 12:13:54,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 12:13:54,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147819535] [2023-05-04 12:13:54,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 12:13:54,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 12:13:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 12:13:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 55 proven. 201 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-04 12:13:55,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 12:13:55,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147819535] [2023-05-04 12:13:55,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147819535] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 12:13:55,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100391953] [2023-05-04 12:13:55,730 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-04 12:13:55,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 12:13:55,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 12:13:55,731 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 12:13:55,731 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 12:13:56,266 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2023-05-04 12:13:56,266 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 12:13:56,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 56 conjunts are in the unsatisfiable core [2023-05-04 12:13:56,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-05-04 12:18:20,682 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 12:18:20,682 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 12:18:20,682 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 12:18:21,715 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 12:18:21,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2023-05-04 12:18:21,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown