/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dpor-d6e1636 [2023-01-10 13:11:17,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-10 13:11:17,564 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-10 13:11:17,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-10 13:11:17,604 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-10 13:11:17,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-10 13:11:17,609 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-10 13:11:17,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-10 13:11:17,611 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-10 13:11:17,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-10 13:11:17,612 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-10 13:11:17,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-10 13:11:17,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-10 13:11:17,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-10 13:11:17,615 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-10 13:11:17,616 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-10 13:11:17,616 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-10 13:11:17,617 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-10 13:11:17,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-10 13:11:17,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-10 13:11:17,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-10 13:11:17,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-10 13:11:17,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-10 13:11:17,635 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-10 13:11:17,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-10 13:11:17,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-10 13:11:17,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-10 13:11:17,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-10 13:11:17,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-10 13:11:17,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-10 13:11:17,646 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-10 13:11:17,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-10 13:11:17,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-10 13:11:17,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-10 13:11:17,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-10 13:11:17,651 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-10 13:11:17,652 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-10 13:11:17,652 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-10 13:11:17,652 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-10 13:11:17,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-10 13:11:17,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-10 13:11:17,654 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-01-10 13:11:17,685 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-10 13:11:17,685 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-10 13:11:17,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-01-10 13:11:17,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-01-10 13:11:17,686 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-10 13:11:17,686 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-10 13:11:17,687 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-10 13:11:17,687 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-10 13:11:17,687 INFO L138 SettingsManager]: * Use SBE=true [2023-01-10 13:11:17,687 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-10 13:11:17,687 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-10 13:11:17,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-10 13:11:17,688 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-10 13:11:17,688 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-10 13:11:17,688 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-10 13:11:17,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-10 13:11:17,688 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-10 13:11:17,688 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-10 13:11:17,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-10 13:11:17,690 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-10 13:11:17,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-10 13:11:17,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-10 13:11:17,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-10 13:11:17,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-10 13:11:17,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-10 13:11:17,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 13:11:17,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-10 13:11:17,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-10 13:11:17,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-10 13:11:17,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-10 13:11:17,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-10 13:11:17,693 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-01-10 13:11:17,693 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-01-10 13:11:17,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-01-10 13:11:17,694 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-01-10 13:11:17,694 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-01-10 13:11:17,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-10 13:11:17,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-10 13:11:17,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-10 13:11:17,932 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-10 13:11:17,932 INFO L275 PluginConnector]: CDTParser initialized [2023-01-10 13:11:17,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-01-10 13:11:19,045 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-10 13:11:19,193 INFO L351 CDTParser]: Found 1 translation units. [2023-01-10 13:11:19,193 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/mult-dist.wvr.c [2023-01-10 13:11:19,198 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/370804642/16de37eec0e7410eae86f7448fb827fa/FLAGca2067925 [2023-01-10 13:11:19,209 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/370804642/16de37eec0e7410eae86f7448fb827fa [2023-01-10 13:11:19,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-10 13:11:19,213 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-10 13:11:19,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-10 13:11:19,214 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-10 13:11:19,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-10 13:11:19,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557cbe97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19, skipping insertion in model container [2023-01-10 13:11:19,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-10 13:11:19,236 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-10 13:11:19,384 WARN L247 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] [2023-01-10 13:11:19,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 13:11:19,404 INFO L203 MainTranslator]: Completed pre-run [2023-01-10 13:11:19,424 WARN L247 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] [2023-01-10 13:11:19,425 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-10 13:11:19,438 INFO L208 MainTranslator]: Completed translation [2023-01-10 13:11:19,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19 WrapperNode [2023-01-10 13:11:19,438 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-10 13:11:19,439 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-10 13:11:19,439 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-10 13:11:19,439 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-10 13:11:19,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,484 INFO L138 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 73 [2023-01-10 13:11:19,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-10 13:11:19,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-10 13:11:19,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-10 13:11:19,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-10 13:11:19,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,518 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-10 13:11:19,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-10 13:11:19,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-10 13:11:19,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-10 13:11:19,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (1/1) ... [2023-01-10 13:11:19,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-10 13:11:19,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:11:19,589 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) [2023-01-10 13:11:19,596 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 [2023-01-10 13:11:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-10 13:11:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-01-10 13:11:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-01-10 13:11:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-01-10 13:11:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-01-10 13:11:19,633 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-01-10 13:11:19,633 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-01-10 13:11:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-10 13:11:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-10 13:11:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-10 13:11:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-10 13:11:19,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-10 13:11:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-10 13:11:19,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-10 13:11:19,635 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-10 13:11:19,750 INFO L236 CfgBuilder]: Building ICFG [2023-01-10 13:11:19,752 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-10 13:11:20,001 INFO L277 CfgBuilder]: Performing block encoding [2023-01-10 13:11:20,007 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-10 13:11:20,007 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-01-10 13:11:20,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:11:20 BoogieIcfgContainer [2023-01-10 13:11:20,009 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-10 13:11:20,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-10 13:11:20,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-10 13:11:20,013 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-10 13:11:20,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:11:19" (1/3) ... [2023-01-10 13:11:20,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64395c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:11:20, skipping insertion in model container [2023-01-10 13:11:20,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:11:19" (2/3) ... [2023-01-10 13:11:20,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64395c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:11:20, skipping insertion in model container [2023-01-10 13:11:20,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:11:20" (3/3) ... [2023-01-10 13:11:20,015 INFO L112 eAbstractionObserver]: Analyzing ICFG mult-dist.wvr.c [2023-01-10 13:11:20,022 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-01-10 13:11:20,031 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-10 13:11:20,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-10 13:11:20,031 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-10 13:11:20,140 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-01-10 13:11:20,190 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 13:11:20,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-01-10 13:11:20,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:11:20,197 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) [2023-01-10 13:11:20,204 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 [2023-01-10 13:11:20,244 INFO L164 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-01-10 13:11:20,255 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-01-10 13:11:20,260 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;@532bd444, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-01-10 13:11:20,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-01-10 13:11:20,457 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:11:20,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:11:20,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1165459837, now seen corresponding path program 1 times [2023-01-10 13:11:20,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:11:20,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170011449] [2023-01-10 13:11:20,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:11:20,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:11:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:11:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:11:20,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:11:20,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170011449] [2023-01-10 13:11:20,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170011449] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:11:20,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:11:20,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-10 13:11:20,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128294356] [2023-01-10 13:11:20,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:11:20,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-10 13:11:20,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:11:20,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-10 13:11:20,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-10 13:11:20,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:20,788 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:11:20,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 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) [2023-01-10 13:11:20,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:20,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:20,863 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-10 13:11:20,864 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:11:20,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:11:20,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2115804517, now seen corresponding path program 1 times [2023-01-10 13:11:20,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:11:20,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716182124] [2023-01-10 13:11:20,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:11:20,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:11:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:11:21,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:11:21,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:11:21,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716182124] [2023-01-10 13:11:21,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716182124] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-10 13:11:21,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-10 13:11:21,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-01-10 13:11:21,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076886787] [2023-01-10 13:11:21,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:11:21,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-10 13:11:21,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:11:21,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-10 13:11:21,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-01-10 13:11:21,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:21,631 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:11:21,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 7 states have internal predecessors, (72), 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) [2023-01-10 13:11:21,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:21,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:21,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:21,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:11:21,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-10 13:11:21,720 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:11:21,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:11:21,721 INFO L85 PathProgramCache]: Analyzing trace with hash -75728244, now seen corresponding path program 1 times [2023-01-10 13:11:21,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:11:21,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042695478] [2023-01-10 13:11:21,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:11:21,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:11:21,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:11:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:11:22,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:11:22,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042695478] [2023-01-10 13:11:22,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042695478] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:11:22,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479932862] [2023-01-10 13:11:22,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:11:22,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:11:22,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:11:22,240 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) [2023-01-10 13:11:22,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-10 13:11:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:11:22,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 16 conjunts are in the unsatisfiable core [2023-01-10 13:11:22,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:11:22,735 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:11:22,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:11:41,481 WARN L222 SmtUtils]: Spent 15.26s on a formula simplification. DAG size of input: 1673 DAG size of output: 918 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-01-10 13:11:45,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:11:45,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479932862] provided 1 perfect and 1 imperfect interpolant sequences [2023-01-10 13:11:45,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-01-10 13:11:45,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8, 8] total 18 [2023-01-10 13:11:45,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968653039] [2023-01-10 13:11:45,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-10 13:11:45,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-01-10 13:11:45,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:11:45,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-01-10 13:11:45,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2023-01-10 13:11:45,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:45,301 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:11:45,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 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) [2023-01-10 13:11:45,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:45,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:11:45,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:45,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:11:45,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 13:11:45,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-10 13:11:45,886 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,SelfDestructingSolverStorable2 [2023-01-10 13:11:45,887 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:11:45,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:11:45,887 INFO L85 PathProgramCache]: Analyzing trace with hash -654423610, now seen corresponding path program 1 times [2023-01-10 13:11:45,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:11:45,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028736231] [2023-01-10 13:11:45,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:11:45,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:11:45,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:11:46,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:11:46,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:11:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028736231] [2023-01-10 13:11:46,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028736231] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:11:46,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410307752] [2023-01-10 13:11:46,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:11:46,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:11:46,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:11:46,429 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) [2023-01-10 13:11:46,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-10 13:11:46,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:11:46,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 23 conjunts are in the unsatisfiable core [2023-01-10 13:11:46,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:11:47,173 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:11:47,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:11:52,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:11:52,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410307752] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:11:52,176 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:11:52,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 15] total 37 [2023-01-10 13:11:52,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309745740] [2023-01-10 13:11:52,176 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:11:52,177 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-01-10 13:11:52,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:11:52,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-01-10 13:11:52,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1119, Unknown=2, NotChecked=0, Total=1332 [2023-01-10 13:11:52,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:52,178 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:11:52,179 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.891891891891892) internal successors, (144), 37 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-10 13:11:52,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:52,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:11:52,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 13:11:52,179 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:11:56,742 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 [] [2023-01-10 13:12:00,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:12:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:12:00,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 13:12:00,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-01-10 13:12:00,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-10 13:12:00,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:12:00,801 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:12:00,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:12:00,802 INFO L85 PathProgramCache]: Analyzing trace with hash 166445993, now seen corresponding path program 2 times [2023-01-10 13:12:00,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:12:00,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133838412] [2023-01-10 13:12:00,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:12:00,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:12:00,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:12:01,696 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:12:01,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:12:01,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133838412] [2023-01-10 13:12:01,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133838412] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:12:01,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981152493] [2023-01-10 13:12:01,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-10 13:12:01,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:12:01,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:12:01,701 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) [2023-01-10 13:12:01,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-10 13:12:01,901 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-10 13:12:01,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:12:01,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 35 conjunts are in the unsatisfiable core [2023-01-10 13:12:01,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:12:02,630 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:12:02,630 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:12:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:12:03,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981152493] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:12:03,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:12:03,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 21, 21] total 51 [2023-01-10 13:12:03,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434420107] [2023-01-10 13:12:03,968 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:12:03,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-01-10 13:12:03,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:12:03,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-01-10 13:12:03,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=298, Invalid=2252, Unknown=0, NotChecked=0, Total=2550 [2023-01-10 13:12:03,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:12:03,970 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:12:03,971 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 3.411764705882353) internal successors, (174), 51 states have internal predecessors, (174), 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) [2023-01-10 13:12:03,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:12:03,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:12:03,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 13:12:03,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2023-01-10 13:12:03,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:12:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:12:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:12:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 13:12:12,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-01-10 13:12:12,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2023-01-10 13:12:12,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-10 13:12:12,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:12:12,220 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:12:12,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:12:12,221 INFO L85 PathProgramCache]: Analyzing trace with hash -707925783, now seen corresponding path program 3 times [2023-01-10 13:12:12,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:12:12,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754531534] [2023-01-10 13:12:12,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:12:12,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:12:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:12:13,475 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:12:13,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:12:13,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754531534] [2023-01-10 13:12:13,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754531534] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:12:13,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129812828] [2023-01-10 13:12:13,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-10 13:12:13,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:12:13,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:12:13,481 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) [2023-01-10 13:12:13,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-01-10 13:12:13,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-01-10 13:12:13,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:12:13,787 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 53 conjunts are in the unsatisfiable core [2023-01-10 13:12:13,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:12:15,153 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:12:15,154 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-10 13:12:18,632 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:12:18,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129812828] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-10 13:12:18,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-10 13:12:18,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 31, 30] total 78 [2023-01-10 13:12:18,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147008419] [2023-01-10 13:12:18,633 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-10 13:12:18,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2023-01-10 13:12:18,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-10 13:12:18,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2023-01-10 13:12:18,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=671, Invalid=5335, Unknown=0, NotChecked=0, Total=6006 [2023-01-10 13:12:18,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:12:18,637 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-01-10 13:12:18,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.0128205128205128) internal successors, (235), 78 states have internal predecessors, (235), 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) [2023-01-10 13:12:18,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:12:18,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:12:18,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2023-01-10 13:12:18,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2023-01-10 13:12:18,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2023-01-10 13:12:18,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:13:50,445 WARN L222 SmtUtils]: Spent 1.14m on a formula simplification. DAG size of input: 114 DAG size of output: 107 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:15:02,092 WARN L222 SmtUtils]: Spent 51.49s on a formula simplification. DAG size of input: 101 DAG size of output: 94 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:15:04,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-01-10 13:15:36,634 WARN L222 SmtUtils]: Spent 28.27s on a formula simplification. DAG size of input: 89 DAG size of output: 82 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:15:54,017 WARN L222 SmtUtils]: Spent 13.92s on a formula simplification. DAG size of input: 76 DAG size of output: 69 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:16:00,068 WARN L222 SmtUtils]: Spent 5.26s on a formula simplification. DAG size of input: 62 DAG size of output: 55 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:17:09,452 WARN L222 SmtUtils]: Spent 26.06s on a formula simplification. DAG size of input: 95 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:18:19,820 WARN L222 SmtUtils]: Spent 48.24s on a formula simplification. DAG size of input: 107 DAG size of output: 100 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:18:37,390 WARN L222 SmtUtils]: Spent 11.88s on a formula simplification. DAG size of input: 82 DAG size of output: 75 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:19:04,669 WARN L222 SmtUtils]: Spent 18.50s on a formula simplification. DAG size of input: 85 DAG size of output: 78 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:19:12,240 WARN L222 SmtUtils]: Spent 6.70s on a formula simplification. DAG size of input: 71 DAG size of output: 64 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:20:50,298 WARN L222 SmtUtils]: Spent 1.24m on a formula simplification. DAG size of input: 123 DAG size of output: 116 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:22:29,111 WARN L222 SmtUtils]: Spent 1.17m on a formula simplification. DAG size of input: 120 DAG size of output: 113 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:23:08,552 WARN L222 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 68 DAG size of output: 61 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:23:43,079 WARN L222 SmtUtils]: Spent 31.10s on a formula simplification. DAG size of input: 98 DAG size of output: 91 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:24:45,782 WARN L222 SmtUtils]: Spent 49.24s on a formula simplification. DAG size of input: 110 DAG size of output: 103 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-01-10 13:24:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-10 13:24:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-10 13:24:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-01-10 13:24:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-01-10 13:24:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2023-01-10 13:24:47,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-01-10 13:24:47,284 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-01-10 13:24:47,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:24:47,480 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-01-10 13:24:47,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-01-10 13:24:47,480 INFO L85 PathProgramCache]: Analyzing trace with hash 780981097, now seen corresponding path program 4 times [2023-01-10 13:24:47,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-10 13:24:47,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881501793] [2023-01-10 13:24:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-10 13:24:47,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-10 13:24:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-10 13:24:49,483 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 548 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:24:49,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-10 13:24:49,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881501793] [2023-01-10 13:24:49,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881501793] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-10 13:24:49,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695060829] [2023-01-10 13:24:49,484 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-10 13:24:49,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:24:49,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-10 13:24:49,485 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) [2023-01-10 13:24:49,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-01-10 13:24:49,622 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-10 13:24:49,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-10 13:24:49,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 84 conjunts are in the unsatisfiable core [2023-01-10 13:24:49,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-10 13:24:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 0 proven. 548 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-10 13:24:52,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-01-10 13:25:41,520 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 [2023-01-10 13:25:41,532 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 [2023-01-10 13:25:41,533 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-10 13:25:41,870 WARN L238 SmtUtils]: Removed 2 from assertion stack [2023-01-10 13:25:41,872 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-01-10 13:25:41,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-01-10 13:25:42,072 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-10 13:25:42,073 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 163 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 11ms.. [2023-01-10 13:25:42,082 INFO L445 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2023-01-10 13:25:42,083 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION was TIMEOUT (1/4) [2023-01-10 13:25:42,084 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-10 13:25:42,084 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-10 13:25:42,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:25:42 BasicIcfg [2023-01-10 13:25:42,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-10 13:25:42,087 INFO L158 Benchmark]: Toolchain (without parser) took 862874.46ms. Allocated memory was 175.1MB in the beginning and 750.8MB in the end (delta: 575.7MB). Free memory was 132.6MB in the beginning and 406.4MB in the end (delta: -273.8MB). Peak memory consumption was 482.0MB. Max. memory is 8.0GB. [2023-01-10 13:25:42,087 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 175.1MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-01-10 13:25:42,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.80ms. Allocated memory is still 175.1MB. Free memory was 132.3MB in the beginning and 121.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-01-10 13:25:42,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.74ms. Allocated memory is still 175.1MB. Free memory was 121.4MB in the beginning and 119.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-01-10 13:25:42,088 INFO L158 Benchmark]: Boogie Preprocessor took 34.82ms. Allocated memory is still 175.1MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-01-10 13:25:42,088 INFO L158 Benchmark]: RCFGBuilder took 488.02ms. Allocated memory is still 175.1MB. Free memory was 118.3MB in the beginning and 105.0MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-01-10 13:25:42,089 INFO L158 Benchmark]: TraceAbstraction took 862075.98ms. Allocated memory was 175.1MB in the beginning and 750.8MB in the end (delta: 575.7MB). Free memory was 104.3MB in the beginning and 406.4MB in the end (delta: -302.2MB). Peak memory consumption was 453.7MB. Max. memory is 8.0GB. [2023-01-10 13:25:42,090 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 175.1MB. Free memory is still 125.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.80ms. Allocated memory is still 175.1MB. Free memory was 132.3MB in the beginning and 121.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 45.74ms. Allocated memory is still 175.1MB. Free memory was 121.4MB in the beginning and 119.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.82ms. Allocated memory is still 175.1MB. Free memory was 119.7MB in the beginning and 118.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 488.02ms. Allocated memory is still 175.1MB. Free memory was 118.3MB in the beginning and 105.0MB in the end (delta: 13.3MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 862075.98ms. Allocated memory was 175.1MB in the beginning and 750.8MB in the end (delta: 575.7MB). Free memory was 104.3MB in the beginning and 406.4MB in the end (delta: -302.2MB). Peak memory consumption was 453.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4376, independent: 3712, independent conditional: 3712, independent unconditional: 0, dependent: 664, dependent conditional: 664, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3712, independent: 3712, independent conditional: 3712, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3712, independent: 3712, independent conditional: 3712, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3712, independent: 3712, independent conditional: 0, independent unconditional: 3712, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3712, independent: 3712, independent conditional: 0, independent unconditional: 3712, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3712, independent: 3712, independent conditional: 0, independent unconditional: 3712, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 228, independent: 228, independent conditional: 0, independent unconditional: 228, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 228, independent: 228, independent conditional: 0, independent unconditional: 228, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 3712, independent: 3484, independent conditional: 0, independent unconditional: 3484, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 228, unknown conditional: 0, unknown unconditional: 228] , Statistics on independence cache: Total cache size (in pairs): 228, Positive cache size: 228, Positive conditional cache size: 0, Positive unconditional cache size: 228, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 664 - StatisticsResult: Traversal Statistics Data States: 438, Transitions: 528, Traversal time: 131590042.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 40 - StatisticsResult: Traversal Statistics Data States: 438, Transitions: 529, Traversal time: 65835847.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 40 - StatisticsResult: Traversal Statistics Data States: 200, Transitions: 231, Traversal time: 82209668.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 13 - StatisticsResult: Traversal Statistics Data States: 327, Transitions: 393, Traversal time: 319893577.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 35 - StatisticsResult: Traversal Statistics Data States: 143, Transitions: 155, Traversal time: 5365591300.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 6 - StatisticsResult: Traversal Statistics Data States: 163, Transitions: 175, Traversal time: 2723563761.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 6 - StatisticsResult: Traversal Statistics Data States: 203, Transitions: 215, Traversal time: 237198140118.0ns - StatisticsResult: Traversal Statistics Data Sleep-blocked states: 6 - TimeoutResultAtElement [Line: 80]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while PartialOrderCegarLoop was analyzing trace of length 163 with TraceHistMax 15,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 23 for 11ms.. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION with 1 thread instances CFG has 7 procedures, 129 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 861853650078.0ns, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 765854969365.0ns, FeasibilityCheckTime: 94918831630.0ns, RefinementTime: 25890155.0ns, AutomataDifference: 0.0ns, DeadEndRemovalTime: 0.0ns, HoareAnnotationTime: 0.0ns, InitialAbstractionConstructionTime: 12499290.0ns, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 2271 SdHoareTripleChecker+Valid, 31559805720.0ns IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2271 mSDsluCounter, 12377 SdHoareTripleChecker+Invalid, 30370061955.0ns Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11604 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8681 IncrementalHoareTripleChecker+Invalid, 8765 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 773 mSDtfsCounter, 8681 mSolverCounterSat, 80998895.0ns SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: No data available, 0.0ns BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 355, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ns DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 90278191.0ns SsaConstructionTime, 877958597.0ns SatisfiabilityAnalysisTime, 39120671541.0ns InterpolantComputationTime, 921 NumberOfCodeBlocks, 921 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1295 ConstructedInterpolants, 1 QuantifiedInterpolants, 9539 SizeOfPredicates, 79 NumberOfNonLiveVariables, 920 ConjunctsInSsa, 127 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 1/450 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown [2023-01-10 13:25:42,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0