/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 GLOBAL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-04 09:04:22,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-05-04 09:04:22,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-05-04 09:04:22,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-05-04 09:04:22,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-05-04 09:04:22,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-05-04 09:04:22,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-05-04 09:04:22,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-05-04 09:04:22,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-05-04 09:04:22,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-05-04 09:04:22,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-05-04 09:04:22,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-05-04 09:04:22,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-05-04 09:04:22,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-05-04 09:04:22,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-05-04 09:04:22,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-05-04 09:04:22,950 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-05-04 09:04:22,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-05-04 09:04:22,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-05-04 09:04:22,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-05-04 09:04:22,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-05-04 09:04:22,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-05-04 09:04:22,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-05-04 09:04:22,965 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-05-04 09:04:22,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-05-04 09:04:22,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-05-04 09:04:22,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-05-04 09:04:22,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-05-04 09:04:22,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-05-04 09:04:22,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-05-04 09:04:22,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-05-04 09:04:22,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-05-04 09:04:22,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-05-04 09:04:22,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-05-04 09:04:22,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-05-04 09:04:22,979 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-05-04 09:04:22,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-05-04 09:04:22,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-05-04 09:04:22,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-05-04 09:04:22,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-05-04 09:04:22,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-05-04 09:04:22,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-04 09:04:23,009 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-04 09:04:23,010 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-04 09:04:23,010 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-04 09:04:23,010 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-04 09:04:23,011 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-04 09:04:23,011 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-04 09:04:23,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-04 09:04:23,012 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-04 09:04:23,012 INFO L138 SettingsManager]: * Use SBE=true [2023-05-04 09:04:23,012 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-04 09:04:23,013 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-04 09:04:23,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-04 09:04:23,013 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-04 09:04:23,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-04 09:04:23,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-04 09:04:23,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-04 09:04:23,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-04 09:04:23,014 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-04 09:04:23,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-04 09:04:23,014 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-04 09:04:23,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-04 09:04:23,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-04 09:04:23,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-04 09:04:23,015 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-04 09:04:23,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-04 09:04:23,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 09:04:23,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-04 09:04:23,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-04 09:04:23,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-04 09:04:23,016 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-04 09:04:23,016 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-04 09:04:23,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-04 09:04:23,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-04 09:04:23,017 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-04 09:04:23,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-04 09:04:23,017 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-04 09:04:23,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> 3,2 1,1 2,2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> GLOBAL_READ_WRITE [2023-05-04 09:04:23,276 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-04 09:04:23,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-04 09:04:23,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-04 09:04:23,305 INFO L271 PluginConnector]: Initializing CDTParser... [2023-05-04 09:04:23,306 INFO L275 PluginConnector]: CDTParser initialized [2023-05-04 09:04:23,307 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-05-04 09:04:23,369 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2ea0af0/a480ceaaaca143e681a83b689164d3d4/FLAG62947a17a [2023-05-04 09:04:23,745 INFO L306 CDTParser]: Found 1 translation units. [2023-05-04 09:04:23,745 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-05-04 09:04:23,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2ea0af0/a480ceaaaca143e681a83b689164d3d4/FLAG62947a17a [2023-05-04 09:04:23,770 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e2ea0af0/a480ceaaaca143e681a83b689164d3d4 [2023-05-04 09:04:23,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-04 09:04:23,776 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-05-04 09:04:23,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-05-04 09:04:23,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-05-04 09:04:23,782 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-05-04 09:04:23,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 09:04:23" (1/1) ... [2023-05-04 09:04:23,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238b9f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:23, skipping insertion in model container [2023-05-04 09:04:23,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.05 09:04:23" (1/1) ... [2023-05-04 09:04:23,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-05-04 09:04:23,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-05-04 09:04:24,024 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-dist.wvr.c[2116,2129] [2023-05-04 09:04:24,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 09:04:24,046 INFO L203 MainTranslator]: Completed pre-run [2023-05-04 09:04:24,083 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-dist.wvr.c[2116,2129] [2023-05-04 09:04:24,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-05-04 09:04:24,102 INFO L208 MainTranslator]: Completed translation [2023-05-04 09:04:24,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24 WrapperNode [2023-05-04 09:04:24,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-05-04 09:04:24,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-04 09:04:24,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-04 09:04:24,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-04 09:04:24,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,148 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2023-05-04 09:04:24,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-04 09:04:24,149 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-04 09:04:24,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-04 09:04:24,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-04 09:04:24,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-04 09:04:24,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-04 09:04:24,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-04 09:04:24,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-04 09:04:24,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (1/1) ... [2023-05-04 09:04:24,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-04 09:04:24,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 09:04:24,222 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 09:04:24,245 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 09:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-05-04 09:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-04 09:04:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-04 09:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-04 09:04:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-04 09:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-04 09:04:24,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-04 09:04:24,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-05-04 09:04:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-05-04 09:04:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-05-04 09:04:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-04 09:04:24,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-04 09:04:24,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-05-04 09:04:24,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-05-04 09:04:24,264 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 09:04:24,348 INFO L235 CfgBuilder]: Building ICFG [2023-05-04 09:04:24,350 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-04 09:04:24,553 INFO L276 CfgBuilder]: Performing block encoding [2023-05-04 09:04:24,559 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-04 09:04:24,560 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2023-05-04 09:04:24,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 09:04:24 BoogieIcfgContainer [2023-05-04 09:04:24,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-04 09:04:24,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-04 09:04:24,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-04 09:04:24,567 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-04 09:04:24,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.05 09:04:23" (1/3) ... [2023-05-04 09:04:24,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5774df13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 09:04:24, skipping insertion in model container [2023-05-04 09:04:24,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.05 09:04:24" (2/3) ... [2023-05-04 09:04:24,568 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5774df13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 09:04:24, skipping insertion in model container [2023-05-04 09:04:24,568 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 09:04:24" (3/3) ... [2023-05-04 09:04:24,569 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2023-05-04 09:04:24,579 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-04 09:04:24,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-04 09:04:24,587 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-04 09:04:24,587 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-04 09:04:24,691 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-04 09:04:24,744 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 09:04:24,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-04 09:04:24,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 09:04:24,746 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 09:04:24,766 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 09:04:24,783 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-04 09:04:24,799 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-04 09:04:24,808 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;@600930cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-04 09:04:24,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-04 09:04:25,043 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 09:04:25,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 09:04:25,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1659304454, now seen corresponding path program 1 times [2023-05-04 09:04:25,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 09:04:25,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777610263] [2023-05-04 09:04:25,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 09:04:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 09:04:25,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 09:04:25,339 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-05-04 09:04:25,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 09:04:25,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777610263] [2023-05-04 09:04:25,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777610263] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-04 09:04:25,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-04 09:04:25,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-05-04 09:04:25,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936670378] [2023-05-04 09:04:25,344 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-04 09:04:25,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-05-04 09:04:25,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 09:04:25,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-05-04 09:04:25,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-05-04 09:04:25,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:04:25,375 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 09:04:25,377 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.0) internal successors, (84), 2 states have internal predecessors, (84), 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 09:04:25,377 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:04:25,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:04:25,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-04 09:04:25,418 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 09:04:25,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 09:04:25,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1709646928, now seen corresponding path program 1 times [2023-05-04 09:04:25,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 09:04:25,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912258920] [2023-05-04 09:04:25,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 09:04:25,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 09:04:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 09:04:26,616 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 09:04:26,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 09:04:26,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912258920] [2023-05-04 09:04:26,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912258920] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 09:04:26,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026354232] [2023-05-04 09:04:26,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 09:04:26,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 09:04:26,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 09:04:26,622 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 09:04:26,640 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 09:04:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 09:04:26,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 28 conjunts are in the unsatisfiable core [2023-05-04 09:04:26,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 09:04:27,318 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-04 09:04:27,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 09:04:31,025 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 09:04:31,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026354232] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 09:04:31,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 09:04:31,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 18] total 36 [2023-05-04 09:04:31,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029188243] [2023-05-04 09:04:31,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 09:04:31,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2023-05-04 09:04:31,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 09:04:31,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2023-05-04 09:04:31,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1052, Unknown=0, NotChecked=0, Total=1260 [2023-05-04 09:04:31,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:04:31,031 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 09:04:31,031 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 4.361111111111111) internal successors, (157), 36 states have internal predecessors, (157), 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 09:04:31,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:04:31,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:04:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:04:38,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 09:04:38,266 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 09:04:38,455 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,SelfDestructingSolverStorable1 [2023-05-04 09:04:38,456 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 09:04:38,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 09:04:38,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1204272839, now seen corresponding path program 2 times [2023-05-04 09:04:38,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 09:04:38,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058614890] [2023-05-04 09:04:38,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 09:04:38,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 09:04:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 09:04:40,177 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 09:04:40,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 09:04:40,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058614890] [2023-05-04 09:04:40,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058614890] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 09:04:40,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625496418] [2023-05-04 09:04:40,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-04 09:04:40,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 09:04:40,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 09:04:40,181 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 09:04:40,188 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 09:04:40,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-04 09:04:40,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 09:04:40,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 41 conjunts are in the unsatisfiable core [2023-05-04 09:04:40,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 09:04:41,478 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 30 proven. 28 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-05-04 09:04:41,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 09:05:58,193 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 09:05:58,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625496418] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 09:05:58,193 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 09:05:58,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 19, 25] total 63 [2023-05-04 09:05:58,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288941783] [2023-05-04 09:05:58,194 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 09:05:58,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2023-05-04 09:05:58,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 09:05:58,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2023-05-04 09:05:58,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=520, Invalid=3350, Unknown=36, NotChecked=0, Total=3906 [2023-05-04 09:05:58,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:05:58,197 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 09:05:58,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 3.746031746031746) internal successors, (236), 63 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 09:05:58,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:05:58,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 09:05:58,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:06:11,303 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse11 (mod (+ c_thread1Thread1of1ForFork1_~i~0 2) 4294967296)) (.cse9 (mod (+ c_thread1Thread1of1ForFork1_~i~0 1) 4294967296)) (.cse15 (mod c_~a~0 4294967296)) (.cse14 (+ c_~b~0 c_~a~0))) (let ((.cse1 (* 4294967296 (div c_~b~0 4294967296))) (.cse0 (* (div c_thread1Thread1of1ForFork1_~i~0 4294967296) 4294967296)) (.cse2 (mod .cse14 4294967296)) (.cse5 (* (div c_~a~0 4294967296) 4294967296)) (.cse3 (not (< .cse9 .cse15))) (.cse4 (< .cse11 .cse15)) (.cse6 (* 4294967296 (div .cse14 4294967296)))) (and (<= (+ c_thread1Thread1of1ForFork1_~i~0 c_~b~0 .cse0) (+ .cse1 (* (div (+ 4294967294 (- |c_thread3Thread1of1ForFork0_#t~post3|)) 4294967296) 4294967296) |c_thread3Thread1of1ForFork0_#t~post3|)) (or (not (< (mod (+ c_thread3Thread1of1ForFork0_~i~2 1) 4294967296) .cse2)) .cse3 .cse4 (< (mod (+ c_thread3Thread1of1ForFork0_~i~2 4) 4294967296) .cse2) (not (< (mod (+ 3 c_thread3Thread1of1ForFork0_~i~2) 4294967296) .cse2))) (or .cse3 (< 5 .cse2) (<= .cse2 4) .cse4) (<= (+ .cse1 .cse5 |c_thread3Thread1of1ForFork0_#t~post3| 1) (+ c_~b~0 .cse0 c_~a~0)) (<= (+ c_thread1Thread1of1ForFork1_~i~0 .cse5 2) c_~a~0) (or .cse3 (not (< (mod (+ |c_thread3Thread1of1ForFork0_#t~post3| 4) 4294967296) .cse2)) .cse4 (< (mod (+ 5 |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296) .cse2) (not (< (mod (+ 2 |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296) .cse2))) (<= (+ c_thread1Thread1of1ForFork1_~i~0 .cse5 c_~b~0 (* (div c_thread3Thread1of1ForFork0_~i~2 4294967296) 4294967296) 1) (+ c_thread3Thread1of1ForFork0_~i~2 .cse6)) (<= 1 c_thread1Thread1of1ForFork1_~i~0) (or .cse3 (let ((.cse7 (+ 5 (* 4294967295 c_~a~0)))) (< (* (div .cse7 4294967296) 4294967296) .cse7)) .cse4) (forall ((aux_div_aux_mod_~a~0_21_32 Int) (aux_div_aux_mod_aux_mod_~a~0_21_32_43 Int) (aux_mod_aux_mod_aux_mod_~a~0_21_32_43 Int)) (let ((.cse13 (* aux_div_aux_mod_aux_mod_~a~0_21_32_43 4294967296))) (let ((.cse10 (+ aux_mod_aux_mod_aux_mod_~a~0_21_32_43 .cse13)) (.cse8 (+ aux_mod_aux_mod_aux_mod_~a~0_21_32_43 .cse13 (* aux_div_aux_mod_~a~0_21_32 4294967296)))) (or (< .cse8 0) (<= aux_mod_aux_mod_aux_mod_~a~0_21_32_43 .cse9) (< .cse10 0) (<= 4294967296 .cse10) (>= aux_mod_aux_mod_aux_mod_~a~0_21_32_43 4294967296) (< .cse11 .cse8) (let ((.cse12 (+ (* aux_mod_aux_mod_aux_mod_~a~0_21_32_43 4294967295) 5))) (< (* 4294967296 (div .cse12 4294967296)) .cse12)))))) (<= .cse14 (+ 4294967294 |c_thread3Thread1of1ForFork0_#t~post3| .cse6))))) is different from false [2023-05-04 09:07:33,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:07:33,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-05-04 09:07:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2023-05-04 09:07:33,660 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 09:07:33,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 09:07:33,856 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 09:07:33,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-04 09:07:33,856 INFO L85 PathProgramCache]: Analyzing trace with hash 201378463, now seen corresponding path program 3 times [2023-05-04 09:07:33,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-04 09:07:33,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483054524] [2023-05-04 09:07:33,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-04 09:07:33,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-04 09:07:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-04 09:07:36,447 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 121 proven. 94 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-05-04 09:07:36,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-04 09:07:36,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483054524] [2023-05-04 09:07:36,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483054524] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-04 09:07:36,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658294811] [2023-05-04 09:07:36,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-04 09:07:36,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-04 09:07:36,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-04 09:07:36,449 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 09:07:36,450 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 09:07:36,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-05-04 09:07:36,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-04 09:07:36,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 65 conjunts are in the unsatisfiable core [2023-05-04 09:07:36,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-04 09:07:38,813 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 129 proven. 78 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2023-05-04 09:07:38,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-04 09:08:29,363 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-04 09:08:29,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658294811] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-04 09:08:29,364 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-04 09:08:29,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 24, 37] total 83 [2023-05-04 09:08:29,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897870660] [2023-05-04 09:08:29,364 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-04 09:08:29,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2023-05-04 09:08:29,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-04 09:08:29,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2023-05-04 09:08:29,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=710, Invalid=6088, Unknown=8, NotChecked=0, Total=6806 [2023-05-04 09:08:29,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:08:29,369 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-04 09:08:29,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 3.397590361445783) internal successors, (282), 83 states have internal predecessors, (282), 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 09:08:29,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:08:29,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2023-05-04 09:08:29,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2023-05-04 09:08:29,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-04 09:08:54,440 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 09:08:56,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:09:22,219 WARN L233 SmtUtils]: Spent 18.49s on a formula simplification. DAG size of input: 100 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 09:09:28,601 WARN L233 SmtUtils]: Spent 6.12s on a formula simplification. DAG size of input: 93 DAG size of output: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 09:09:41,938 WARN L539 Checker$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 09:10:04,540 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:10:06,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:10:09,772 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse16 (+ c_~b~0 c_~a~0))) (let ((.cse4 (mod .cse16 4294967296))) (let ((.cse14 (mod (+ c_thread1Thread1of1ForFork1_~i~0 3) 4294967296)) (.cse15 (mod c_~a~0 4294967296)) (.cse11 (< (mod (+ 7 c_thread3Thread1of1ForFork0_~i~2) 4294967296) .cse4))) (let ((.cse8 (< (mod (+ 9 c_thread3Thread1of1ForFork0_~i~2) 4294967296) .cse4)) (.cse9 (not .cse11)) (.cse10 (not (< (mod (+ 2 c_thread3Thread1of1ForFork0_~i~2) 4294967296) .cse4))) (.cse6 (< (mod (+ c_thread1Thread1of1ForFork1_~i~0 2) 4294967296) .cse15)) (.cse12 (< (mod (+ 8 |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296) .cse4)) (.cse2 (* 8589934592 (div .cse16 4294967296))) (.cse0 (- c_~a~0)) (.cse1 (- c_~b~0)) (.cse3 (* 4294967296 (div c_~b~0 4294967296))) (.cse7 (< .cse14 .cse15)) (.cse5 (< (mod (+ c_thread3Thread1of1ForFork0_~i~2 8) 4294967296) .cse4))) (and (<= (+ (* (div (+ .cse0 4294967294 |c_thread3Thread1of1ForFork0_#t~post3| .cse1) 4294967296) 4294967296) c_thread1Thread1of1ForFork1_~i~0 2 .cse2) (+ .cse3 (* 4294967296 (div (+ (- 1) |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296)) c_~a~0)) (or (not (< (mod (+ c_thread3Thread1of1ForFork0_~i~2 1) 4294967296) .cse4)) .cse5 .cse6 (not (< (mod (+ 6 c_thread3Thread1of1ForFork0_~i~2) 4294967296) .cse4))) (or .cse7 .cse8 .cse9 .cse10) (or .cse8 .cse6 .cse9 .cse10) (or (not (< (mod (+ c_thread3Thread1of1ForFork0_~i~2 4) 4294967296) .cse4)) .cse11 (not (< (mod (+ 5 c_thread3Thread1of1ForFork0_~i~2) 4294967296) .cse4)) .cse6) (or .cse12 (not (< (mod (+ 6 |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296) .cse4)) .cse6 (not (< (mod (+ |c_thread3Thread1of1ForFork0_#t~post3| 1) 4294967296) .cse4))) (or .cse7 (<= .cse4 8) (< 10 .cse4)) (<= (+ c_thread1Thread1of1ForFork1_~i~0 2 .cse2 (* 4294967296 (div (+ .cse0 c_thread3Thread1of1ForFork0_~i~2 .cse1 4294967293) 4294967296))) (+ .cse3 (* 4294967296 (div (+ (- 2) c_thread3Thread1of1ForFork0_~i~2) 4294967296)) c_~a~0)) (or (< (mod (+ 9 |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296) .cse4) .cse6 (not (< (mod (+ 7 |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296) .cse4)) (not (< (mod (+ 2 |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296) .cse4))) (<= (+ (* (div (+ .cse0 4294967294 c_thread3Thread1of1ForFork0_~i~2 .cse1) 4294967296) 4294967296) c_thread1Thread1of1ForFork1_~i~0 2 .cse2) (+ .cse3 (* (div (+ (- 1) c_thread3Thread1of1ForFork0_~i~2) 4294967296) 4294967296) c_~a~0)) (or .cse7 (not (< (mod (+ 3 |c_thread3Thread1of1ForFork0_#t~post3|) 4294967296) .cse4)) (< (mod (+ |c_thread3Thread1of1ForFork0_#t~post3| 10) 4294967296) .cse4) (not .cse12)) (<= (+ c_thread1Thread1of1ForFork1_~i~0 2 .cse2 (* (div (+ .cse0 4294967295 |c_thread3Thread1of1ForFork0_#t~post3| .cse1) 4294967296) 4294967296)) (+ .cse3 (* (div |c_thread3Thread1of1ForFork0_#t~post3| 4294967296) 4294967296) c_~a~0)) (<= 2 c_thread1Thread1of1ForFork1_~i~0) (or .cse7 (< (+ (div (+ (* (- 4294967295) c_~a~0) (- 9)) 4294967296) (div (+ (* 4294967295 c_~a~0) 10) 4294967296)) 0)) (or .cse7 (< (mod (+ c_thread3Thread1of1ForFork0_~i~2 10) 4294967296) .cse4) (not .cse5) (not (< (mod (+ 3 c_thread3Thread1of1ForFork0_~i~2) 4294967296) .cse4))) (forall ((aux_div_aux_mod_~a~0_21_32 Int) (aux_mod_aux_mod_~a~0_21_32 Int)) (let ((.cse13 (+ aux_mod_aux_mod_~a~0_21_32 (* aux_div_aux_mod_~a~0_21_32 4294967296)))) (or (<= 4294967296 .cse13) (<= .cse13 (mod c_thread1Thread1of1ForFork1_~i~0 4294967296)) (< .cse14 aux_mod_aux_mod_~a~0_21_32) (< (+ (div (+ (* aux_mod_aux_mod_~a~0_21_32 4294967295) 10) 4294967296) (div (+ (- 9) (* aux_mod_aux_mod_~a~0_21_32 (- 4294967295))) 4294967296)) 0) (> 0 aux_mod_aux_mod_~a~0_21_32))))))))) is different from false [2023-05-04 09:11:03,200 WARN L233 SmtUtils]: Spent 34.82s on a formula simplification. DAG size of input: 85 DAG size of output: 81 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 09:11:05,205 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 09:11:07,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:11:09,364 WARN L539 Checker$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 09:11:10,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:11:12,478 WARN L539 Checker$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 09:11:14,527 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:11:16,531 WARN L539 Checker$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 09:11:18,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:11:20,681 WARN L539 Checker$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 09:11:22,694 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:13:02,674 WARN L233 SmtUtils]: Spent 1.26m on a formula simplification that was a NOOP. DAG size: 98 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 09:13:06,368 WARN L539 Checker$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 09:13:08,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:14:26,926 WARN L233 SmtUtils]: Spent 48.83s on a formula simplification. DAG size of input: 98 DAG size of output: 89 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 09:14:29,445 WARN L539 Checker$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 09:14:31,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:14:33,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:17:30,571 WARN L233 SmtUtils]: Spent 1.96m on a formula simplification. DAG size of input: 129 DAG size of output: 116 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-04 09:17:33,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:17:35,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-05-04 09:17:37,819 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 [] Received shutdown request... [2023-05-04 09:18:56,648 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-04 09:18:56,648 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 09:18:56,648 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 09:18:57,672 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 09:18:57,676 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 [2023-05-04 09:18:57,855 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2023-05-04 09:18:57,870 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 137 [2023-05-04 09:18:57,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-05-04 09:18:57,872 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:219) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:203) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:219) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:203) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:203) at de.uni_freiburg.informatik.ultimate.automata.partialorder.MinimalSleepSetReduction.internalSuccessors(MinimalSleepSetReduction.java:154) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$0(INwaOutgoingLetterAndTransitionProvider.java:123) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.nextLetter(NestedIterator.java:69) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.(NestedIterator.java:62) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIteratorNoopConstruction.(NestedIteratorNoopConstruction.java:48) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$1(INwaOutgoingLetterAndTransitionProvider.java:124) at java.base/java.lang.Iterable.spliterator(Iterable.java:101) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:235) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:165) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:98) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:122) at de.uni_freiburg.informatik.ultimate.automata.partialorder.PersistentSetReduction.applyNewStateReduction(PersistentSetReduction.java:73) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:592) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:267) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:466) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-05-04 09:18:57,875 INFO L158 Benchmark]: Toolchain (without parser) took 874098.48ms. Allocated memory was 205.5MB in the beginning and 326.1MB in the end (delta: 120.6MB). Free memory was 148.2MB in the beginning and 112.2MB in the end (delta: 36.0MB). Peak memory consumption was 157.9MB. Max. memory is 8.0GB. [2023-05-04 09:18:57,875 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 205.5MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-04 09:18:57,875 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.16ms. Allocated memory is still 205.5MB. Free memory was 148.2MB in the beginning and 178.2MB in the end (delta: -30.0MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. [2023-05-04 09:18:57,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.45ms. Allocated memory is still 205.5MB. Free memory was 178.2MB in the beginning and 176.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-05-04 09:18:57,876 INFO L158 Benchmark]: Boogie Preprocessor took 32.79ms. Allocated memory is still 205.5MB. Free memory was 176.6MB in the beginning and 175.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-04 09:18:57,876 INFO L158 Benchmark]: RCFGBuilder took 379.10ms. Allocated memory is still 205.5MB. Free memory was 175.1MB in the beginning and 161.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-05-04 09:18:57,876 INFO L158 Benchmark]: TraceAbstraction took 873310.51ms. Allocated memory was 205.5MB in the beginning and 326.1MB in the end (delta: 120.6MB). Free memory was 160.4MB in the beginning and 112.2MB in the end (delta: 48.2MB). Peak memory consumption was 170.1MB. Max. memory is 8.0GB. [2023-05-04 09:18:57,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 205.5MB. Free memory is still 165.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 323.16ms. Allocated memory is still 205.5MB. Free memory was 148.2MB in the beginning and 178.2MB in the end (delta: -30.0MB). Peak memory consumption was 13.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.45ms. Allocated memory is still 205.5MB. Free memory was 178.2MB in the beginning and 176.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 32.79ms. Allocated memory is still 205.5MB. Free memory was 176.6MB in the beginning and 175.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 379.10ms. Allocated memory is still 205.5MB. Free memory was 175.1MB in the beginning and 161.4MB in the end (delta: 13.6MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 873310.51ms. Allocated memory was 205.5MB in the beginning and 326.1MB in the end (delta: 120.6MB). Free memory was 160.4MB in the beginning and 112.2MB in the end (delta: 48.2MB). Peak memory consumption was 170.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown